
100 Science Projects For 4th Graders
Did you know something mysterious happens to a raw egg when you put it into vinegar?
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Make a powerful vortex with two pop bottles and some simple supplies!
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Do shrimp like it hot or cold? Do they like the light or the dark? Find out in this fun experiment!
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Does eating breakfast help students do better in school? Find out in this science project!
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How does time pass for you? Is it the same for everyone? Let's find out!
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Is it true that a dog's saliva can be a secret weapon against bacteria?
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Have you ever wondered how the shape and mass of an object affects its speed when it sinks through water? Let's find out!
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Learn how arches are used to support heavy things with this fun experiment using egg shells!
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Does milk help plants grow better than water? Find out in this fun science project!
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Curious about pet rocks? Make some and learn about the rock cycle in the process!
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Get your hands messy with this mysterious substance! Is it a liquid or a solid? Mix, squish and play to uncover its secrets!
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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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See colors magically move in milk with soap! This fun experiment demonstrates surface tension in a vivid way!
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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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Let's explore how the forces of nature shape the land around us! We'll use sand, water, ice, and wind to observe how erosion works.
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Are there liquefaction concerns where you live? In this science project, find out what happens when you add water to different types of soil to mimic liquefaction.
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Make delicious rock formations using Starbursts! Learn how the earth makes rocks in a tasty way.
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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 wondered what the difference between a rock and a mineral is? Find out with this sweet experiment!
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Discover how to make your own sedimentary, metamorphic, and igneous rocks using crayons!
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Have you ever heard of rocks made of chocolate? Learn how rocks can be turned into a sweet treat in this delicious science project!
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Make your own sparkling rainbow crystals at home with Borax and see science in action!
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Have you ever wondered how wind affects plants? In this experiment, you'll find out by comparing two plants in different wind conditions.
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Create a fizzing, bubbling reaction with baking soda and vinegar! Learn about acid-base reactions and have fun while doing it!
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Did you know that some Skittles have a secret rainbow hiding inside them? It's true!
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Get ready to create a massive, bubbling tube of toothpaste using only a few simple ingredients! Don't miss out on the fun!
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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 if the little brown grains of yeast you buy in the grocery store are alive? Let's find out!
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Learn how to keep bread from spoiling by storing it in different environments!
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Let's find out which beverage leaves the most stains on our teeth!
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Can sea water help or hurt bamboo plants? Find out in this experiment!
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Discover how stalactites and stalagmites form in caves with this fun experiment!
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Can you tell the difference between an apple and a pear if you can't smell? Find out in this fun experiment!
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Find out if you have the lungs of an athlete by testing your lung capacity with the water displacement method!
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Join us on an adventure to explore the different kinds of insects living on three different species of trees!
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Let's find out if there are differences in how males and females perceive smells!
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Find out if boys have a higher or lower lung volume than girls in this fun experiment!
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Make a magnetic chain reaction to launch a steel marble at a target at high speed!
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Watch the transformation of caterpillars into butterflies in just a few days!
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Let's find out which type of tape is the stickiest and requires the most force to pull off a steel surface!
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Can chili peppers repel and even kill crickets? Find out in this fun science experiment!
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Do boys or girls have better drawing skills? Find out in this fun science project!
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Have you ever wanted to make your RC car go faster? In this science project, you will find out how to make your RC car go faster by changing the ...
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Can you tell the difference between a happy face and an angry face? Boys and girls aged 15 are put to the test to see who can identify facial expressions ...
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Do you want to know if watering plants makes them grow faster? Join us in this experiment to find out!
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Who can multitask better: boys or girls? Find out in this science project!
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Do you want to make your flowers last longer? Try adding sugar to the water!
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Let's find out if organic fertilizer helps mung beans grow faster than regular fertilizer!
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Do you want to know if your height affects how far you can walk in one step? Find out in this fun experiment!
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Does stress and anxiety affect our ability to remember? Find out in this fun science project!
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Ever wondered why water evaporates faster in some places than others? Find out in this fun science project!
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Does the temperature of a room affect how quickly a candle burns? Find out in this science project!
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Does highlighting what you read help you remember more easily? Find out in this fun science project!
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Can you make a bubble that won't burst? Find out with this fun science project!
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Let's find out if scented candles burn faster than unscented ones!
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Do hamsters fight when placed in the same cage? Find out in this science project!
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Let's find out if the roots of a germinated green bean will grow towards moisture!
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Hot cars can be cooled down with sunshades! Find out which type of sunshade works best in this science project.
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Does drinking soft drinks cause tooth erosion? Find out in this science project!
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Have you ever seen raisins swim? Find out how to make raisins swim with this fun science experiment!
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Are you left-handed? Find out how many people are in the same boat as you in this science project!
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Can ants help plants grow faster? Find out in this science project!
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Have you ever seen a shooting star? What if you could collect the tiny rocks that make them?
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Does acidic water make Zebra mussel shells softer? Let's find out!
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Can you tell the difference between sweet, sour, salty, and bitter? Find out in this fun science project!
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Do singers sound better after drinking cold water? Find out in this fun science project!
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Does the pH level of soil affect how well grass grows? Find out with this fun science project!
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Let's find out which clothing material is the best at keeping us warm!
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Can animals see in the dark? Find out if dogs, cats and monkeys can see color in the dark!
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Can you tell the difference between musical notes? Find out if your left ear is better at recognizing musical notes than your right ear!
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Can eating too much sugar make you gain weight? Find out by feeding baby mice apples and jelly beans!
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Let's explore how the number of stomata on pine tree leaves changes depending on the amount of traffic in the area!
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Did you know you can change the color of flowers? With this science experiment, you can!
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Do plants have a favorite color for photosynthesis?
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Dig deep and find out what happens when we mine things out of the earth!
Medium
Build a train that floats above a pair of magnetic tracks and can be pushed from one end to the other!
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Can fish recognize when it's time to eat? Find out by creating a feeding schedule and observing your fish's behavior!
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Discover how colors affect our emotions by observing cars, clothes, and favorite colors!
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Learn how to make a battery from potatoes and measure the voltage and current it produces!
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Make a simple pinhole viewer to see the images carried by light shining through a pinhole!
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Let's find out how different levels of nitrogen affect the growth of bean plants!
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Can earthworms and water help plants grow? Join us in this experiment to find out!
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Can plants grown in soil or hydroponically reach the same heights? Let's find out!
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Does the acid in soda really cause tooth decay? Find out in this experiment!
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Have you ever wondered why you can't see certain things? In this project, you'll explore the blind spot in your vision and learn how to find it!
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Does drinking a can of soda really raise your blood pressure? Find out in this experiment with 6th grade girls!
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