4th - 7th Grade Science Activities : Page 10

Construct batteries that make electricity from fruits with this fun science fair project.

This science fair project focuses on the use of the enzyme amylase found in human saliva to break down starch into sugar.

This science fair project idea determines if crystals will absorb food dye and if colors will mix by the process of diffusion.

Learn how to make a ping pong ball anemometerâa device used to measure wind speedâin this free science fair project idea.

This science fair project creates a visual model of whatâs happening to sound waves as a car approaches and then leaves.

What do ants eat? Kids find out by observing a colony of ants in this cool zoology science fair project for 4th grade.

In this science and engineering activity, children will explore types of tunnels and their purposes and then design and build a tunnel of their own.

Based on the concept of water's "freezing point," this activity entails the lowering of water's freezing point to chill ice cream!

This project determines what category of person is most likely to be ticklish.

Science fair project which evaluates different athletic shoes in order to find out whether any of them affect a person's ability to run.

Learn about lateral earthquake motion and its effect on high rise buildings in this simple 4th grade earth science experiment.

The purpose of this science fair project is to study the properties of sugar and examine individual preferences for sugar and other sweeteners.

Science fair project which simulates the global conveyor belts on a small scale, and observes the effects of wind, density and temperature on water movement.

Want to see a great example of Newton's first law? Kids will learn about basic physics with this fun, ballistic experiment.

April showers may bring May flowers, but your child can preserve the beauty of spring's bounty all year long with this simple craft project!

Determine whether butterflies like to drink sugar water, salt water, or plain water.

This science fair project investigates why the number of visible stars changes from place to place.

Explore how sound waves are reflected and absorbed by producing echoes. Analyze which locations produce echoes.

This science fair project idea identifies trees using a dichotomous key.

This science fair project idea explores whether a plastic slinky works as well as a metal slinky when walking it down the stairs.

Ready for takeoff! Make science fun and teach about levers and fulcrums as your child sends buttons flying.

Wind is an important source of renewable, green energy. The purpose of this science fair project is to build and operate a windmill generator.

Pair a planetarium visit with this fun art project that mimics the look of far-off galaxies.

By using static electricity generated from their body, a child can cause a small fluorescent lamp bulb to light up!

What is biodiversity? Kids will study different areas of their backyards to see which is the most diverse to learn about biodiversity and random sampling.

Have your kid determine if a goldfish can be conditioned to expect food the same way Pavlov's dogs did with this fascinating science fair project.

To help your child learn how to use a thermometer, try this temperature collecting activity at home.

In this activity, your child will make her own "quicksand" to better understand how a substance can be both fluid and solid at the same time.

In this science fair project, students focus sunlight with a magnifying glass and trap shorter waves to melt ice.

This Mother's Day, mix in some fifth grade science learning to create this fabulous fudge!