2nd - 7th Grade Science Activities : Page 7

Young physicists will wrestle with a discrepant event: the Hammer Ruler Trick. They'll make some inferences about torque, balance, and center of gravity.

In this challenge, students are tasked with creating an insulated cup that will keep beverages colder for longer than a regular cup.

When you cut a flower to put into a vase, it'll eventually wilt, even with water and sunshine. But is there another scientific secret to keeping flowers fresh?

In this activity, your child will transform an egg into a glowing, bouncy "ball" that they can play with.

How do series and parallel circuits work, and which produces the brightest light in a light bulb? Construct both in this project and find out!

This science fair project idea investigates emulsifiers that allow oil and vinegar to mix.

In this free science fair project idea, we learn about surface tension and how it can support mass—in this case, a floating paper clip.

Do hand soaps and sanitizers prevent the growth of bread mold? If so, why? Kids will find out with this fun and informative science fair project idea.

In this enlightening transpiration experiment, kids will explore how the loss of water from plants through transpiration contributes to the water cycle.

Try this experiment to give your curious kid a more "solid" understanding of how temperature affects the states of matter.

How powerful is the reaction between baking soda and vinegar? Find out here!

In this fun design challenge, your child will get creative with making structures out of toothpicks and gumdrop candies.

Try this simple activity with your child to guesstimate the age of a tree in your yard and nurture her developing math skills while you're at it!

This science fair project demonstrates the principles of reflection through simple experiments involving mirrors and light.

Teach your child some scientific basics as you explore the densities of various liquids in this fun experiment.

Help your kindergarten science maven explore the water cycle without getting everything wet.

Is it solid or liquid? Create oobleck and witness the amazingly weird oscillation between the two!

This science fair project idea investigates whether plants can survive being frozen.

Kids make a paperclip perform an act of magnetic levitation and test how effective various materials are at magnetic shielding in this science fair project.

The objective of this science fair project is to observe the differences in heat absorption for darker colors vs. lighter colors.

In this activity, your child will be challenged to create a device that protects an egg when it is dropped from a height of about 10 feet.

Why does honey crystallize? This science fair project project answers this question and identifies the variable that makes this sweet solute crystallize faster.

Does electricity move better through thick wires or thin ones? kids will conduct this classic electricity experiment for this science fair project.

This science fair project idea investigates which objects float and sink in honey, water, and oil.

An hour glass, also known as a sand clock, keeps time. In this activity, your child will make her own sand clock and measure the time it keeps.

In this cool engineering science fair project, kids learn how to build Hero's engine: an enlightening example of Newton's third law.

Plants and light seem to be good buddies, but how far does the friendship really go?

Kids will learn how to measure the viscosity of liquids by making their own homemade viscometer in this great science fair project idea.

Help your child create a magical miniature garden in the most unlikely of places: a recycled plastic bottle!

Turn the common pastime of constructing paper airplanes into a lesson on the physics of aerodynamics and flight with this fun science activity.