7th grade science experiment ideas

7th grade science experiment ideas DEFAULT

Seventh Grade Science Projects (651 results)

What Makes Ice Melt Fastest?

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Science Fair Project Idea
If you live in a place that gets cold in the winter, you have probably seen trucks out spreading a mixture of sand and salt on the streets after a snowfall to help de-ice the road. Have you ever wondered how this works? This basic chemistry project can give you some clues. Read more

Juice Balls: The Science of Spherification

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Science Fair Project Idea
Forget drinking your juice. Instead, try snacking on it! Use the steps and recipes in this food science project to transform drinks into semi-solid balls that pop in your mouth. The technique is called spherification and it is part of a larger food science trend called molecular gastronomy— but we just call it yummy science! Read more

Balloon-Powered Car Challenge

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Science Fair Project Idea
Do you think you could build a car powered by nothing but air? A balloon-powered car is pushed forward by air escaping from a balloon, and it is fun and easy to build with materials you already have around your house. Can you imagine how you would want your own balloon-powered car to look? Can you design a car that will travel as far as possible? You can even measure your car's speed using your smartphone and a special sensor app. Get ready to grab some simple supplies to bring your idea to… Read more

Which Filtration Material Leads to the Best Drinking Water?

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Science Fair Project Idea
Do you filter your tap water before drinking? Many commercials claim these filters make your drinking water cleaner and safer. But what, exactly, are these filters doing and is the water really cleaner afterwards? The cleaning power comes from their filling material, called activated carbon. It exists in all kind of forms: powder, granules, foams, and blocks. Do you think it matters what type of activated carbon is inside the filter? In this activity you will investigate whether larger or… Read more

Are Fingerprint Patterns Inherited?

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Science Fair Project Idea
Have you ever looked at two girls and thought they looked so similar that they must be sisters? What about a father and his son — have you ever seen a boy who looked just like how his father did when he was younger? We can often tell that two people are related because they appear to have several similar physical traits. This is because children receive half of their DNA — their genetic blueprints — from each parent. What about fingerprints — are they an inherited trait?… Read more

Explore Optical Illusions: Build an Infinity Mirror

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Science Fair Project Idea
Do you want to trick friends and visitors with an amazing optical illusion? In this engineering design project you will learn how to build an infinity mirror,with built-in lights that make the mirror look like a deep tunnel with no end. But pick the mirror up and look behind it, and you will see that it is only a couple of inches thick! Read this project to find out not only how this illusion works, but how to design and build your very own infinity mirror from scratch. Read more

Ball Launcher Challenge

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Science Fair Project Idea
Try your hand at this engineering challenge. Can you build a "launcher" device to launch a ball as far as possible and a "receiver" to catch it? Building a receiver provides an extra twist to a traditional catapult project. Add to the challenge by using a limited set of materials to build your machine and calculate a score based on your throw distance and materials used. Read more

Bath Bomb Science

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Science Fair Project Idea
Have you ever had a refreshing bath using a bath bomb? A bath bomb is several ingredients mixed and molded into a shape, which becomes fizzy when it touches the water. It can be quite a relaxing experience, especially if your bath bomb has a nice fragrance or includes some bath salts. The fizz is the result of a chemical reaction taking place between different ingredients within the bath bomb. In this science project, you will get to make your own homemade bath bombs and explore how changing… Read more
Sours: https://www.sciencebuddies.org/science-fair-projects/project-ideas/seventh-grade

Stop Worrying, 7th Grades! Here are 35 Rad Science Fair Topics

Science Fair Topics for 7th Grade

Making projects for science fair topics for 7th grade is a unique way in teaching children scientific concepts that are difficult to understand. Which is why they must be fun, creative, and easy to try.

Academics beyond textbooks and classroom walls make a better impact. Science fairs projects are one such kind of learning medium, where the toughest topics can be explained with interesting models and graphical representations. With a little help, any subject can be turned into an eye pleasing science fair project. To make science fair topics for 7th grade worth the effort, let the students pick the topics they like.

List of Science Fairs Topics for 7th Grade

  • How does a magnet affect radish plant growth?
  • Does temperature affect the performance of a fuel cell?
  • Which building design will best withstand an earthquake?
  • What techniques do air traffic controllers use to control air traffic? How efficient are these techniques?
  • How does temperature affect the survival rate of aquatic plants?
  • Can animals see in the dark better than humans? Explain how.
  • Does shoe design really affect an athlete’s jumping height?
  • What kind of fertilizers work better? Natural or synthetic?
  • What light brightness makes plants grow the best?
  • How much weight can the surface tension of water hold?
  • Can people tell artificial smells from real ones?
  • How does music affect animal and plant behavior?
  • What is the best way to prevent an ice cube from melting?
  • How is out heart rate affected by the food we eat?
  • What are the terrible effects of acid rain?
  • Can background noise levels affect how well we concentrate?
  • Do antioxidants really improve a human’s life span?
  • How does temperature affect the growth of yeast or mold on bread?
  • Does the species of wood affect the rate at which it burns?
  • How does talking on a cell phone or listening to music affect reaction time?
  • Do we remember a sequence of letters and numbers better if they hear or see the sequence first?
  • What is the importance of breakfast in our lives? How does it affect our metabolism rate?
  • How does music influence learning and memory?
  • Do daily memory-oriented activities slow memory loss at occurs with aging?
  • How does caffeine and nicotine affect bacterial growth?
  • What antibacterial properties do extracts from basil and mint plants have?
  • What effects do garlic and vitamin C have on high blood pressure in people?
  • Does the Atkins high-protein diet really work?
  • How does exercise affect heart rate recovery?
  • How does light affect the vitamin C content of juice?
  • How effective are herbal oils and DEET as mosquito repellents?
  • Can vocal wave form patterns be used to identify individuals?
  • Can computer systems for recognizing human motion be used to counter terrorism?
  • How does sunspot activity affect radio reception?
  • How does the air temperature affect carbon monoxide emissions when a car is first started?

Participating in science fair projects encourages the child to read and learn more about myriad subjects. Getting involved in your child’s academics will not only motivate the child but also help you develop a bond of trust and reliability. However, you need to support the child and not do the project for him. Doing the entire project by yourself will make your child handicapped and defeat the whole purpose of the science fair.

The above list science fair topics for 7th grade are extremely easy to do. Ask your child to write a script to explain to the viewers what the project is all about. The simpler the script, the easier it is for him to understand and to explain it. Science fair projects help a great deal in explaining scientific concepts in a jiffy.

Sours: https://sciencestruck.com/science-fair-topics-for-7th-grade
  1. Mermaid bathroom mirror
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  4. Awakened poe trade


Are you looking for science activities to do with your 7th graders? No sweat. We have you covered. Check out our list of 43 science projects and experiments that you can try with your 7th graders this month.

  1. Yeast Metabolism with and without Aeration | Sciencebuddies.org – Grades 6-8 Biology experiment that evaluates the effects of glucose metabolism in yeast.
  2. Aspirin Absorption in Carbohydrate Solutions | All-Science-Fair-Projects.com– Grades 6-8, Does aspirin absorb into the bloodstream quicker if taken with a carbohydrate food? Test aspirin dissolution in an assortment of carbohydrate solutions.
  3. Bacteria and Toothpaste | All-Science-Fair-Projects.com – Grades 6-8, Do you know which toothpaste cleans your teeth best? In this project, you will row bacteria from your recently brushed teeth in petri dishes to find out the answer.
  4. Making Batteries from Fruits and Vegetables | Sciencebuddies.org – Grades 4-7, Use veggie power to build a simple battery from a variety of vegetables. Which ones are the most powerful?
  5. How Do Roots Grow When the Direction of Gravity Changes? | ScienceBuddies.org -Grades 6-10, Plants respond to gravity by stems that grow upward and roots that grow downward. Experiment with germinating seeds and rotate them to make up down and down up. How do you think the growing seedlings will respond?
  6. Hydroponics vs. Soil Growth | All-Science-Fair-Projects.com – Grades 6-8, In this project, students find out if plants grow better in soil or a hydroponic solution.
  7. Puppy Proportions: Your Dog’s Early Months | Sciencebuddies.org – Grades 6-8, Find out how a puppy’s weight, growth, and proportions change early in their lives.
  8. Do Migratory Birds Like It Hot? | Sciencebuddies.org – Grades 6-8, Pick a species of bird and determine if there is a correlation between air temperature and where and when the birds migrate.
  9. That’s a Real Smile! …or is it? | ScienceBuddies.org – Grades 6-8, Can people tell the difference between a fake smile and a real one? Gather information from dozens of volunteers to find out.
  10. Build a Raft Powered by Surface Tension | Sciencebuddies.org – Grades 6-10, Learn about the properties of surface water tension, and use it to propel a raft.
  11. Paw Preference in Pets | Sciencebuddies.org – Grades 7-10, Are animals left-handed or right-handed like humans?
  12. Bat Detector: Listen to the Secret Sounds of Bats | Sciencebuddies.org – Grades 7-10, Study the behavior of bats to find out how do they use echolocation to catch their prey
  13. Saving Migratory Animals | ScienceBuddies.org – Grades 7-10, They’re here today but could be gone tomorrow. Examine the migratory path of a bird species and the similarities and differences between their winter and summer habitats. Recommend which locations should be preserved to protect these species.
  14. Which Metal Is the Most Resistant to Corrosion? | Sciencebuddies.org – Grades 6-8, Test several kinds of metal exposed to the air, tap water, and saltwater to determine which are the most resistant to corrosion, and which substances are the most corrosive to them.
  15. Ionizing vs. Photoelectric Smoke Detectors | All-Science-Fair-Projects.com – Grades 6-8, Learn how smoke detectors work, and compare the effectiveness of ionizing smoke detectors to photoelectric smoke detectors.
  16. Robot Movement | Education.com – Grades 6-8, Construct a robot equipped with sound/touch sensor circuitry. Run it through a maze to find out if it displays sequential or random movement.
  17. Repurposed Designs | Education.com – Grades 6-8, Identify items that need repurposing such as e-waste, batteries, and mattresses. Then get creative and Invent your own original repurposed design.
  18. Solar-Powered Robot Bug | Sciencebuddies.org – Grades 6-8, Explore electronics and solar energy by building the Frightened Grasshopper, a solar-powered bug.
  19. Stressed Out with Beams | Sciencebuddies.org – Grades 6-8, Test the load-bearing capacity of several types of beams, including I-beams, U-beams, rectangular beams, and T-beams.
  20. Build a Gauss Rifle | ScienceBuddies.org – Grades 6-8, Use magnets and ball bearings to build a rifle based on magnetism. Investigate how many magnet and ball bearing “stages” affect the velocity and distance of the projectile.
  21. Smart Medicine Cabinet | ScienceBuddies.org – Grades 6-8, Do you know someone who needs to take medication daily? Create a sensor that reminds patients when to take their medication.
  22. electromagnet?
  23. Grow the Best and the Largest Crystals | Sciencebuddies.org – Grades 6-8, Figure out the best temperature for making the largest, purest crystals using water and borax.
  24. What’s the Fastest Way to Cool a Soda? | ScienceBuddies.org – Grades 6-8, Experiment with different ways to cool a can of soda.  Find out the fastest way to get your tall cold drink.
  25. How Much Potential Energy Do Different Nuts Have? | Education.com – Grades 6-8, Explore the energy of living things. Prove that different varieties of nuts produce electricity in a series of experiments.
  26. How Salty Does the Sea Have to Be for an Egg to Float? | ScienceBuddies.org – Grades 6-8, Figure out precisely what concentration of salt in water is required to make an egg float.
  27. Washing Detergent & Hydrophobic Soil | Education.com – Grades 6-8, Some soils do not absorb water very well.  Find out why and if washing detergent and change their ability to absorb water.
  28. Make Your Own Psychrometer | Sciencebuddies.org – Grades 6-8, Make a psychrometer to measure relative humidity, then use it to measure RH in a variety of weather conditions.
  29. Do Our Storm Drains Keep the Ocean Trash Free? | ScienceBuddies.org – Grades 6-8, Test your local grated storm drain inlets to see if they’re up to the task of keeping plastic litter out of your community’s stormwater drainage system. If they’re not, work on improving the design.
  30. Can Water Float on Water? | ScienceBuddies.org – Grades 6-8, Can liquid water float on liquid water? Investigate how the density of water is affected by its temperature and salinity.
  31. What Weather Factors Create Radiation Fog? | Sciencebuddies.org – Grades 6-8, Make systematic observations about the weather conditions needed to create radiation fog. Can you forecast when and where it will occur?
  32. The Science Behind Tsunamis | Sciencebuddies.org – Grades 6-8, Study the effect of water depth on wave velocity. Learn how tsunamis form and create your own simulation model wave tank to generate a tsunami.
  33. Killing ‘Vampires’: Saving Money and Power | Sciencebuddies.org – Grades 6-8, In this project, you’ll identify electricity “vampires” in your home, such as computer peripherals and electronic equipment, that use power even when not in use. Find out exactly how much energy they use. Use this eye-opening data to help your family save money on electricity.
  34. Which Wheels Work Best? | Education.com – Grades 6-9, Experiment with how different kinds of wheels affect the speed of a skateboard.  You’ll calculate friction co-efficient and its correlation to velocity.
  35. Test the Efficiency of a Solar Cell? | Education.com – Grades 6-9, Find out how much of the energy from the sun that reaches a photovoltaic cell is changed over into electricity.  Predict how to position solar cells for maximum conversion.
  36. How Acidic Waters Make Rocks Disappear | Sciencebuddies.org – Grades 6-10, Soak some limestone rocks in varying amounts of acidic water.  Determine how much acidity is needed to make them dissolve.
  37. Seafloor Spreading | Education.com – Grades 6-12, Use an oatmeal box and some paper to demonstrate seafloor spreading.
  38. Storytelling Alice | Sciencebuddies.org – Grades 6-12, Create your own computer-animated story using Carnegie Mellon’s 3D programming software. You’ll learn computer programming with easy-to-use drag and drop tools.
  39. Modeling Darcy’s Law | Education.com – Grades 6-12, Model the underground movement of water, utilizing Darcy’s Law.
  40. Globular Clusters | Sciencebuddies.org – Grades 7-10, Explore “star gangs” in the Milky Way and beyond. Globular cluster are compact groups of about a million stars that move around in galaxies. Use statistical data to learn how globular clusters help us better understand the universe.
  41. Demonstrating the Separation of Mixtures | Education.com – Grades 7-10, Separate recycled objects to illustrate how mixtures are created.
  42. Customize Your Own Drum Set! | ScienceBuddies.org – Grades 7-10, Build a drum set using household materials, a computer, Scratch, and a PicoBoard. Program your drum set to create a synthesized Hip hop, rap, classical, techno, or electronic drumbeat.
  43. Harmful Algal Blooms in the Chesapeake Bay | Sciencebuddies.org – Grades 8-12, Harmful algal blooms affect the quality of water and impact people, marine animals, and birds. Study how water quality changes before, during, and after algal blooms.
Sours: https://www.theedadvocate.org/43-of-the-best-7th-grade-science-projects-and-experiments/

7th Grade Science Fair Projects

Seventh grade and middle school, in general, are a big time for science fairs because it's a wonderful educational level for students to come up with ideas to explore using the scientific method and ways to investigate their questions. Parents and teachers still provide direction, especially helping students devise manageable experiments and appropriate work technology to present their results. However, the actual experiment should be done by the 7th grader. The student should record data and analyze it to determine whether or not the hypothesis is supported. Here are some ideas appropriate for the 7th-grade level.

7th Grade Science Project Ideas and Questions

  • Use a prism to show the spectrum of visible light on a sheet of paper. Mark the endpoints, which is how far into infrared and ultraviolet you can see. Compare your visual range with that of other family members or other students. Is there a difference in range between genders? Do family members have a similar range? See if you can draw any conclusions ​using the scientific method.
  • Composting is a great way to reduce waste and recycle nutrients, yet some household products and foods are contaminated with heavy metals and organic chemicals. Devise a test to measure one of these chemicals and compare the concentration in compost versus that in the ordinary soil in your yard.
  • Houseplants can absorb and detoxify indoor pollution. Do research to identify which houseplants are best at cleaning the air in a home, office, or classroom. Now, take the project to the next level and determine which plants are most practical, affordable, and useful. Make a chart of the chemicals the plants clean, whether the plants are toxic to children and pets, whether they can live in low-light conditions or require bright light or special care, how much the plants cost, and whether they are readily available.
  • Which brand of ibuprofen (or the student could test another type of pain reliever) dissolves the most quickly?
  • Does the pH of juice change over time?
  • Insects can sense light and dark. Can they still see light if it's only red or blue, etc.?
  • How well does a football helmet really protect against impact? You could use a skating helmet or any other protective gear, depending on what you have available.
  • How does the concentration of chlorine in water affect the rate or percentage of seed germination?
  • What is the effect of watering schedules on the germination (or growth rate) of seeds from a certain plant?
  • How does the presence of a given medication in water affect the survivability of Daphnia?
  • Does the presence of de-icer salt affect the movement behavior of earthworms?
  • Does the bounciness of a golf ball relate to its ability to be hit long-distance?
  • Does the species of wood affect the rate at which it burns? Its heat output?
  • Does the mass of a baseball bat relate to the distance the baseball travels?
  • Is the paper towel brand that absorbs the most water the same as the brand that absorbs the most oil?
Sours: https://www.thoughtco.com/7th-grade-science-fair-projects-609029

Ideas 7th experiment grade science

Looking for a seventh grade science fair project idea? Want to spice up your lesson plan with in-class experiments? We’ve got you covered! This huge list of science ideas covers biology, chemistry, physics, and more. There are quick ideas for classroom demos or longer project suggestions that are sure to win some prizes. Take a look and get inspired!

1. Crush a can using air pressure

Student's gloved hand holding tongs over a crushed soda can sitting in a bowl of water (Seventh Grade Science)

Sure, it’s easy to crush a soda can with your bare hands, but what if you could do it without touching it at all? That’s the power of air pressure!

Learn more: Steve Spangler Science/Can Crusher

2. Construct a geodesic dome

Geodesic dome made of rolled up newspaper and blue masking tape, supporting a magazine

Budding engineers will love designing, building, and testing the strength of the fascinating geodesic dome. This experiment requires nothing more than newspaper and masking tape!

Learn more: Science Buddies

3. Design a solar oven

Pizza boxed turned into a solar oven, propped open with graham crackers, chocolate, and marshmallows inside (Seventh Grade Science)

Students experiment with the best way to build a solar oven, exploring thermal energy, reflection, convection, and other physics concepts. They can serve up their experiment results along with their final reports!

Learn more: Children’s Science Center

4. Spherify your favorite beverage

Pile of small yellow balls made by spherifying green tea

Spherification is a hot trend in top restaurants, but seventh grade science students can easily replicate it at home with a few special ingredients. This is a cool chemistry experiment and tasty too!

Learn more: Science Buddies

5. Design a helping hand

Collage of photos showing a variety of student-made mechanical hands (Seventh Grade Science)

This is a great individual or group 7th grade science project, as it encourages students to use and hone their design and engineering skills to make a working model of a hand.

Learn more: Science Buddies

6. Watch the greenhouse effect in action

Glass jar with a thermometer inside, covered with plastic wrap, next to another thermometer lying on the sidewalk

Climate change can be a contentious topic, so start by teaching kids about the greenhouse effect, which is easy to see and understand. Then, urge them to explore data collected by other scientists so they can learn to make informed decisions about topics like global warming.

Learn more: Teaching Science With Lynda

7. Marvel at a density rainbow

Stemless wine glass holding a rainbow of layered liquids (Seventh Grade Science)

We learn early on that oil floats on water, but where do other liquids fit in? Students find out when they conduct this colorful density experiment that has them layer different substances, making a rainbow.

Learn more: ThoughtCo

8. Discover computer coding with LEGO bricks

Collage of LEGOs arranged alongside coding symbol cards (Seventh Grade Science)

Chances are good at least some of the kids in your class will go on to work with computer code someday. Introduce the concept now with LEGO bricks!

Learn more: Little Bins for Little Hands

9. Burn calories to explore stored energy

Collage of tin pans with burning bread cubes (Seventh Grade Science)

Ever wonder how scientists determine how many calories are in your food? Try this experiment and find out!

Learn more: Science Buddies

10. Test PH using cabbage

Student with a test tube holder with test tubes containing purple liquids

Teach kids about acids and bases without needing PH test strips! Simply boil some red cabbage and have students use the resulting water to test various substances—acids turn red, and bases turn green.

Learn more: Education Possible

11. Purify water with charcoal

Bottle of powdered activated charcoal next to two jars of colored water (Seventh Grade Science)

Plenty of homes use water filtration systems these days, but how do they really work? This chemistry experiment explores how charcoal filters impurities from drinking water.

Learn more: The Homeschool Scientist

12. Ride the wave (machine)

Series of sticks held together by duct tape, with clay on the ends of the sticks

Learning about wave action? Build this surprisingly easy wave machine for hands-on exploration.

Learn more: Engaging Science Labs

13. Mummify a hotdog

One raw hotdog and one mummified hotdog sitting on a paper towel

Are your students fascinated by the ancient Egyptians? Then we’ve got the perfect 7th grade science project for your class! No need for canopic jars; just grab some baking soda and get started.

Learn more: Science Buddies

14. Construct a water clock

Several small bowls next to a water clock made from a jar of water, styrofoam cup, wood craft stock, and jingle bell (Seventh Grade Science)

You’ll blow your 7th grade science students’ minds when you tell them they’re going to build a clock using engineering that’s been around for thousands of years. The supplies are simple, but the results are pretty neat!

Learn more: STEAM Powered Family

15. Design your own slime

Teachers' hands stretching some green slime (Seventh Grade Science)

Chances are good your students already love making and playing with slime. Turn the fun into an experiment by changing the ingredients to create slime with a variety of properties, from magnetic to glow-in-the-dark!

Learn more: Science Buddies

16. Explore how sugary drinks affect teeth

Four colored cups containing different liquids, with an egg in each

The calcium content of eggshells makes them a great stand-in for teeth. In this experiment, students use eggs to determine how soda and juice stain the teeth and wear down the enamel. (Bonus: Have students try different toothpaste and toothbrush combinations to see how effective they are.)

Learn more: Feels Like Home

17. Extract DNA from an onion

Large red bowl of ice with a thermometer and a measuring cup with frothy white liquid (Seventh Grade Science)

This experiment takes a bit of time and requires a few special supplies, but kids will truly feel like scientists when they extract onion DNA via a test tube.

Learn more: Science Buddies

18. Put together a DIY barometer

Aluminum can topped with green rubber and a stick, next to a vertical ruler

This simple but effective DIY science project teaches kids about air pressure and meteorology. They’ll have fun tracking and predicting the weather with their very own barometer.

Learn more: Edventures With Kids

19. Stretch your mind with a flexibility experiment

Three students lying on their backs stretching one leg in the air while another student stands nearby (Seventh Grade Science)

Find out how important stretching really is by comparing the flexibility of willing test subjects before and after stretch exercises. This is a great experiment for fitness fans.

Learn more: We Have Kids

20. Copper-plate some coins

9 volt battery with electric wires running to a penny, with a cup of blue liquid

Students need just a few simple supplies to perform this classic 7th grade science project involving electrolysis and electroplating, but the results are always impressive.

Learn more: KiwiCo

21. Swab and test for germs

Petri dishes marked floor, fridge, sink, and more, each showing some bacterial growth (Seventh Grade Science)

There’s never been a better time to learn about germs and bacteria. This is the kind of experiment that will make your seventh grade science students feel like real scientists!

Learn more: Angelicscalliwags

22. Tinker around with hydraulic power

Student's hand holding a syringe connected to plastic tubing

Give kids a thorough understanding of hydraulics with this ready-to-use unit, which culminates in designing your own hydraulic invention!

Learn more: Teacher Geek

23. Collect and control biofilm

Two plastic milk jugs sitting by a sink, covered with green film

Bacteria that accumulate on objects in the water form a substance called biofilm. In this ecology project, students build an apparatus to collect biofilm, then experiment with ways to reduce the amount of biofilm that accumulates over time.

Learn more: The Homeschool Scientist

24. Learn whether color affects memory

Colorful markers next to note cards with historical names and dates

Can certain colors improve your memory? This experiment explores that idea, using only colored and black markers and a set of willing participants.

Learn more: Education.com

25. Grow and experiment with crystals

Closeup of blue flowers covered in tiny crystals

There are so many ways to experiment with crystals, teaching kids about supersaturated solutions. Check out the link below for great ideas, like making an edible crystal flower.

Learn more: ThoughtCo

26. Use a fidget spinner to explore the laws of motion

Collage of child's hand holding a fidget spinner with lights

Fidget spinners are a great way to keep some kids focused, but did you ever consider using them for a science experiment? This one explores Newton’s First Law of Motion, aka The Law of Inertia. Fun and educational!

Learn more: From Engineer to Stay At Home Mom

27. See if caffeine helps you type faster

Man typing at a computer with a cup of coffee in front of him

People seek out a jolt of caffeine when they’re feeling sluggish, but does it really help them perform better? This science experiment tasks students with answering that question using the scientific method.

Learn more: ThoughtCo

28. Design a pinball machine

Student-created pinball machine made from cardboard box, paper cups, and other basic supplies

Give your class basic supplies like rubber bands, plastic cups, and cardboard boxes. Then challenge them to create their very own pinball machines!

Learn more: Student Savvy

29. Build a da Vinci bridge

Da Vinci bridge built from unsharpened pencils and rubber bands (Seventh Grade Science)

There are plenty of bridge-building experiments out there, but this one is unique. It’s inspired by Leonardo da Vinci’s 500-year-old self-supporting wooden bridge. History + science for the win!

Learn more: iGame Mom

30. Create a taxonomy system

Seventh grade science student sorting a pile of seeds and making notes in a notebook

Students can step into Linnaeus’ shoes by creating their own system of taxonomy, using a handful of different dried beans. This is a fun seventh grade science project to do in groups, so students can see the differences between each group’s system.

Learn more: Our Journey Westward

31. Generate electricity

Simple generator powering a small LED lightbulb

In this science fair project, kids build a generator from scratch. The supplies are readily available online, and there are plenty of experiments students can perform once it’s built.

Learn more: Sciencing.com

32. Play around with oxidation

Series of paper cups containing small items like a penny, paper clip, screw, and more

Oxidation experiments can be as simple as dropping objects into water to see if they rust or made more complex by altering the conditions to see if rusting can be delayed or prevented.

Learn more: Teach Beside Me

33. Spin Beyblades to explore angular momentum

Student's hands holding a white Beyblade top (Seventh Grade Science)

There’s nothing kids love more than getting to play with their toys during school hours. Use their favorite battling tops to explore the relationship of weight to angular momentum.

Learn more: From Engineer to Stay at Home Mom

34. Blow hot or cold bubbles

Frozen soap bubble sitting on snowy branches

Blowing bubbles may sound like too much fun for a science project, but when conditions like temperature are altered, the experimental part kicks in. If it’s cold enough, students can even blow frozen bubbles!

Learn more: ThoughtCo

35. Test out DIY lip balm recipes

Small containers of homemade lip balm, with paper labels and colorful Sharpie markers

Try this experiment for the seventh grade science fair: Cook up batches of lip balms using different recipes and then test them to see which is the most effective.

Learn more: Science Buddies

36. Whip up some eggshell chalk

Pink sidewalk chalk stick sitting on a paper towel

Use the calcium in eggshells to make your own sidewalk chalk. Kids will love grinding the eggshells into powder then decorating the sidewalk with their results!

Learn more: Kidspot

37. Dive into an exploration of swim bladders

Plastic bottle with rubber tubing and a blue balloon, inside the outline of a fish

If you’re learning about fish anatomy, or just exploring buoyancy, this simple experiment is a fun way to dive into the concepts. (Find more balloon science here.)

Learn more: Science Buddies

38. Bake an edible cell model

Cake turned into a cell model with gummi candies and labels (Seventh Grade Science)

Sure, students could build a cell model out of clay, but cake and candy are so much more delicious! Check out the link below to see how one teacher does it.

Learn more: Weird Unsocialized Homeschoolers

39. Determine whether texting is a new language

Cell phone and notebook with list of texting terms

Kids are fluent in text-speak, but does it really count as a whole new language? In this project, students research language and the history of texting then compile a texting glossary and consider texting’s practical applications.

Learn more: Education.com

40. Swing a glass of water

Teacher holding a platform swing from four strings with three glasses of water on it

This classic science experiment teaches kids about centripetal force. Be forewarned: this has the possibility of making a bit of a mess, so consider taking this one outside.

Learn more: Steve Spangler Science/Centripetal Force Board

Keep the STEM learning going with these 15 Items All Middle School Math Classrooms Need.

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40 Clever Seventh Grade Science Fair Projects and Classroom Experiments

Sours: https://www.weareteachers.com/7th-grade-science-projects/
20+ Science Fair Projects That Will Wow The Crowd

At many middle schools and junior high schools, the annual Science Fair is the highlight of the school year. Help your 7th grader select the best science fair idea, then step back and watch your scientist shine!

In this post, we’ve assembled 17 great science fair project ideas for 7th grade. We link each project description to its original source, where you can get more information and step-by-step instructions.


The Science of Fingerprints by Leonard Bloch

Fingerprints offer a fun way to explore the science of forensics. This site offers some basic experiments and then takes the student on a “Crime scene” investigation using their fingerprint knowledge.

Recommended for Grades 7-8.

Source: www.fun-science-project-ideas.com


Cleaning Coins

This project explores the effectiveness of various cleaning solutions in cleaning tarnished and oxidized coins.

Recommended for Grades 6-8.

Source: www.education.com

Sours: https://weparent.app/17-best-science-fair-projects-for-7th-grade/

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