Kids have two minutes to find as many chocolate chips as they can in a cookie. If you’re learning about mineral resources, this quick hands-on activity is an interesting way to explore the effects of mining. Use Jell-O to simulate the earth’s crust, then see if you can build an earthquake-proof structure. The ground under our feet may feel solid, but an earthquake changes that pretty quickly. Learn more: Science Buddies/Milk Plastic 18. In this science project, students experiment to create the formula for the best milk plastic. Plastic seems incredibly modern, but people have been making casein plastic from milk for centuries. Become human sundialsĬhoose a sunny day and grab some sidewalk chalk-your students are about to become sundials! They’ll practice measuring skills and learn about the movement of the sun across the sky. Learn more: Little Bins for Little Hands/Sugar Density Rainbow 16. Discover a density rainbowĬolorful, simple, and impressive: It’s the trifecta of fourth grade science experiments! Wow your students by layering colored sugar water as you learn about density, adhesion, and cohesion. Then, try this experiment to learn why that happens. Sink and float to explore densityĪsk your students if any of them have ever gone swimming in the ocean and noticed that it’s easier to keep afloat there than in a pool. This one uses the natural acids of lemon juice and adds a little food coloring to up the wow factor. Erupt a lemon volcanoĮarly chemistry experiments with acids and bases are always a lot of fun. Learn more: Mystery Science/DIY Flashlight 13. The slideshow available through the link makes this lesson a breeze for teachers too. They’ll learn how electricity travels and the way circuits work. You’ll only need a few supplies to guide your students in building their own LED flashlights. Learn more: Little Bins for Little Hands/Erosion 12. Build a miniature coastline, then see how wave action erodes the shore. Here’s a cool experiment to include in your unit on oceans. Learn more: Steve Spangler Science/Growing Bacteria 11. It’s gross science, but it’s also easy and impressive. They’ll prep the dishes with agar, swab different surfaces, and see what bacteria they grow. Your students will truly feel like scientists when they perform this classic experiment. Who knew electricity could be so adorable? Explore the science behind batteries and motors by creating a simple “wigglebot.” Experiment with weights to throw the motor off balance and create fun designs. Learn more: Frugal Fun for Boys and Girls 9. ( Get more fourth grade STEM challenges here.) We love this one, which only requires basic supplies like drinking straws. STEM challenges are always a hit with kids. The classic experiment gets a new twist when you have kids shape pipe cleaners into their own names first. No list of fourth grade science experiments would be complete without crystals! Kids of all ages love growing crystals, making this an ideal way to learn about supersaturated solutions. A soap bubble you can hold in your hand? It’s true! A little glycerin makes the soap bubble layers stronger, so you can even toss them gently from person to person.
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