Children have a naturally inquisitive mind. Foster their curiosity with a walk through an autumn field or park to answer age-old “why” questions. As you walk with your child, you can encourage them to ask questions.

Learn about this simple machine and make a pulley of your own to use for fun science trials.

Play with balance and simple engineering as you hurry to create a sturdy rock tower.

What is a wedge? Kids find out by experimenting with different wedges in this simple science fair project idea.

This simple heat transfer experiment is a great introduction to the concepts of heat transfer and conduction.

Be a chemist for a day and study the simple reaction between sugar and heat. Try heating sugar and see what happens!

Kids construct a single fixed pulley system to learn how pulleys can make work easier in this cool physics and engineering science fair project idea.

In this project combining nature, art, math, and science, children make rubbings of leaves then observe shapes and structures and sort the leaf images.

How does a kazoo, the strings of a guitar, or the speaker of a radio make sound? The purpose of this science fair project is to show how vibration makes sound.

This science fair project idea demonstrates how air resistance contributes to denser objects falling faster than less dense objects.

This is a quick, easy science fair project that conveys the idea of density to preschool and early elementary children.

How do organic materials become soil? This science experiment measures what materials biodegrade.

It's rhyme time! With this science fair project idea, your child will find out which words can be considered easy rhyming words, and why.

This science fair project idea investigates how optical distances change the apparent size of an object as seen through a magnifying lens.

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

Find the North Star, and measure your latitude! The purpose of this science fair project is to find latitude and learn about geographic locations.

Stories change as you retell them. The objective of this science fair project is to demonstrate how information gets interpreted, distorted and changed.

Science fair project that examines the behavior of water and gravel in creek beds and the formation of sedimentary rocks.

Is it a square or a circle? See if you can trick your friends with this zany science project!

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