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Fourth Grade Science Experiments (top 2,000 results)
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When you're chasing after your dog, do you ever stop and say, "Wait, I have to catch my breath!"? Do you think that there are times when your dog feels like that, too? Does your dog's respiration rate change when you two are playing active games together? Try this playful science project to find out!
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If you're looking for an experiment that will gross out just about everyone, you probably can't do much better than this! This project investigates an important question in the field of forensic entomology. Just make sure to get permission at home before you start.
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You've seen that a magnet's attractive force can cause a small object (like a paper clip) to "jump" to the magnet. So a magnetic field can act through the air, but what about other materials? Here's an experiment you can do to find out. You'll need a strong bar magnet, a stack of books, a paper clip, some thread and tape. Place the bar magnet underneath the top book in your stack, so that it sticks out. Tie a piece of thread (as long as the stack of books is high) to a paper clip. You…
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How much force can a rubber band withstand before breaking? Do rubber bands that stretch longer take more or less force to break? How does the elasticity of a rubber band change with temperature? Use a spring scale to measure the applied force, and a meter stick or ruler to measure the change in length. Recording with a video camera (or possibly two) can help you to capture the values at the moment before the rubber band breaks. You can change the temperature of the rubber bands using…
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Follow along with a Science Buddies parent who is using family STEM activities to keep her kids learning at home during the COVID-19 school shutdown. New posts every Monday, Wednesday, and Friday. Today's adventure... launching rockets made out of plastic Easter eggs.
Embracing Silliness, Themes, and Celebrations
I find myself forgetting what day it is more and more. I'm used to keeping track of the day by the hustle of our family-life schedule. …
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If there are eggs around the house for Easter, there are plenty of opportunities for exciting student science exploration. Try these projects and activities at home or at school. From physics to chemistry to materials science and engineering, eggs are full of science potential—no yolk joke!
K-12 STEM: Science Projects About Eggs: Projects or Activities for Home or School. Hands-on STEM with Science Buddies. www.sciencebuddies.org
Eggy Student…
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If you keep chickens (lucky you!), here's an interesting project you might want to try.
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Follow along with a Science Buddies parent who is using family STEM activities to keep her kids learning at home during the COVID-19 school shutdown. New posts every Monday, Wednesday, and Friday. Today's adventure... foaming fun with elephant toothpaste.
Magic, Otherwise Known as Chemistry
Why are Harry Potter and unicorns so popular? I think it is because kids love magic. They delight in the possibilities and transformations that magic can bring. …
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Want to send coded messages to your friends? Can you write a simple letter-substitution encryption program in Python or JavaScript? How easy is it to break the simple code? Can you write a second program that "cracks" the letter-substitution code? Investigate other encryption schemes. What types of encryption are least vulnerable to attack?
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Have you ever thought to yourself, "I have got to have that new video game right now?" Or maybe there's a new shirt at the store that you just have to have. So you rush home, break into your bank, and gather all of your money, even though you have been saving to buy your mom a gift. But wait! Maybe if you do a few more chores and save for just a few more days, you can gather enough money to buy your mom a gift and buy what you want. This behavior is called delayed gratification and it's what…
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