3rd - 7th Grade Science Resources : Page 28

This science fair project idea examines whether boys and girls differ in reflexes.

This science fair project idea teaches how the gases and pollution in the air affect the earth's atmosphere temperature.

This craft is a great way to explore the fascinating world of spiders and their webs as you collect spider webs from around your house with your third grader.

There are hundreds of properties in rocks which you can describe, so get your geology goggles on and get ready to rock your child's science skills.

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!

If your science savy third grader is up for a challenge, let her bend light with a casserole dish!

This science fair project idea demonstrates that plants give off water.

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.