72 Science Projects for 7th Graders
Do you want to know when hamsters are most alert? Find out by timing how long it takes a hamster to negotiate a maze at different times of day!
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Plant some seeds and watch them grow! See how the number of plants affects their growth rate.
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Can you make a pipe cleaner foil bug walk on water? Find out with this engineering challenge by building your own water strider and exploring the science of surface tension.
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Are left-handers better at mirror writing than right-handers? Find out in this fun science project!
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Have you ever seen a bubble that's made of air instead of water? Learn how to make your own underwater antibubbles!
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Learn how soil can act like an electrical system and how it can be used to attract and hold plant nutrients.
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Let's explore how temperature affects the light from glow sticks!
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Can your favorite drinks harm your teeth? Find out using hard boiled eggs in this science project!
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Let's find out if cooking fruits and vegetables depletes their Vitamin C content!
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Have you ever wondered how to make glow-in-the-dark stickers glow longer?
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Make your own sparkling geode rock crystals at home with Borax and see science in action!
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Have you ever heard of rocks made of chocolate? Use chocolate to learn about the rock cycle in this delicious science project!
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Get ready to become a candy-making scientist! Grow your own giant sugar crystals and make rock candy you can eat!
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How hard is that rock? You can learn how to classify your own rocks by their hardness just like geologists!
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Make delicious rock formations using Starbursts! Learn how the earth makes rocks in a tasty way.
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Did you know that milk from the fridge can be transformed into plastic? How cool is that?
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Does physical activity before an exam help you do better?
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With just a few simple steps, creating a cloud in a jar can help us understand the process of cloud formation!
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Have you ever wondered how temperature affects fingerprints? Find out in this science project!
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Let's find out which beverage leaves the most stains on our teeth!
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Does the packaging of a soft drink affect the amount of carbonation? Find out in this fun science project!
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Let's explore how salt and temperature affect the surface tension of water!
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Does caffeine help plants grow faster? Find out by watering mung beans with water, caffeine solution, and coffee mixture and measuring the growth!
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Does Coca Cola really dissolve meat? Find out in this science project!
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Does the type of stadium affect how far a baseball can be hit? Find out in this fun science project!
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Does a bouncier golf ball travel further than a less bouncy one? Find out in this science project!
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Does music help children fall asleep faster? Find out in this science fair project!
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Find out which skateboard bearings will make your skateboard travel the furthest!
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Do you want to know what colors birds like? Find out by setting up bird feeders in different colors and see which one they prefer!
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Learn how different thawing methods affect the amount of bacteria in meat!
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Does air pressure in a football helmet really affect cushioning? Let's find out!
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Let's explore how acids and alkalis affect the growth of bacteria!
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Do earthworms help plants grow faster? Find out in this science project!
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Learn how oranges ripen and how it affects the amount of vitamin C they contain!
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Can you run faster if you think you can? Find out in this science project!
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Do plants grow faster in soil or in a nutrient solution? Find out by comparing the growth of a Peperomia plant in soil and in hydroponics!
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How do the sizes of birds affect their perching behavior? Find out in this fun science project!
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Can arches really hold up heavy loads? Find out in this science project!
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Does wearing a swimming cap help you swim faster? Find out in this fun experiment!
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Test how different bridge designs stand up to strong winds with this fun science project!
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Does the firmness of a car's suspension system affect its speed around bends? Find out in this fun experiment!
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Ever wonder why some birds have long beaks and others have short ones? Let's find out!
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Learn how to make your own stethoscope and measure your own heartbeat!
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How do 7th graders take care of themselves? What do they eat, how much do they exercise, and how much sleep do they get?
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Can bacteria survive a disinfectant? Find out in this experiment!
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Learn how height and weight can affect potential energy with this fun science project!
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Discover the incredible power of lemons! With lemons and basic materials, you can create an eco-friendly battery that powers an LED light!
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Explore this fascinating egg experiment with vinegar that makes a bouncy egg! Discover the science of acid and base chemical reactions and protein denaturation!
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Explore the solar system with fruits! Pick which fruit represents each planet based on their size, then order them according to their distances from the sun.
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This simple Oobleck recipe of cornstarch and water is a fun introduction to the complex science of non-Newtonian fluids!
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Make your own sparkling rainbow crystals at home with Borax and see science in action!
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See colors magically move in milk with soap! This fun experiment demonstrates surface tension in a vivid way!
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Build a mini version of our solar system with planets made from play dough or foil and a balloon sun. Discover the wonders of space!
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Ever wanted to hold the solar system in your hands? With this project, you can build your own pocket-sized model!
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Explore our solar system with Play-doh! Make a scale model of planets and moons and learn about their size and distance from each other.
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Have you ever wondered how big the Sun really is? See how many Earths can go across the Sun!
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Ever wondered how water can break rocks? Discover the power of ice in this exciting experiment on weathering!
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Mix cornstarch and water to make quicksand and see if your hands sink!
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Find out if rocks have calcium carbonate, also known as calcite, in them with a simple fizz test!
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Can some rocks hold more oil, gas and water than others? Find out in this rock porosity and permeability experiment!
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Rocks are irregularly shaped. How can you measure the density of a rock? (Density = weight / volume) Discover the answer by using water displacement and weighing the rock to ...
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Curious about pet rocks? Make some and learn about the rock cycle in the process!
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Discover how to make your own sedimentary, metamorphic, and igneous rocks using crayons!
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Create your own solar system model to scale on the sidewalk and take a walk through space!
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Can you protect a raw egg from breaking when dropped from high up? Have fun in this engineering challenge!
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Science makes it possible to cook spaghetti in just a minute! Soak it first, then cook in a flash. Save the planet while enjoying your favorite dish!
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Watch as changing colors swirl and dance in this mesmerizing lava lamp experiment using red cabbage juice and Alka-Seltzer tablets. Discover the secrets of pH indicators and fizzy reactions!
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Let's see which paper airplane can fly the farthest! Fold, decorate, and launch your own planes to find the winning design.
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Create your own miniature lightning bolt with a pie plate, pen, thumb tack, wool sock, and styrofoam!
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