How do mirrors work? What is light, and how does it travel? Explore light and reflection with your preschooler with these simple hands-on experiments.

This science fair project demonstrates the magic of arches by challenging students to stack telephone books on top of eggs without breaking them.

Take to the air with science by experimenting with helicopter seeds right in your own backyard!

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

Make some easy homemade yogurt with your young scientist, and see what a few 'live' bacteria can do in the right conditions!

Help your child learn about animal classification with this fun and delicious activity.

Learn about different fern fronds with your third grader as you create lacy, natural decorations on your Easter eggs this year.

Have your child build a model of a coral polyp, one of the tiny animals that composes a coral reef.

Challenge your learner to design and build a city of their own in this creative engineering activity.

What is persistence of vision? With this hands-on science fair project idea, students will demonstrate this cool and dramatic phenomenon in their own classroom.

Learn about the microclimate of your backyard by tracking rainfall, temperature, and observed weather with hand drawn charts and graphs.

This science fair project investigates whether tapping the top or the side of the can will stop a vigorously-shaken can of soda from exploding.

An home science experiment for older students that teaches about the science behind heat.

This science fair project idea produces varying pitches of sound.

The objective of this science fair project idea is to determine if sound travels best through the air, water or a solid.

Grow a garden with an environmentally-friendly twist by using plant scraps that usually get thrown away.

This activity is a great way to stretch the boundaries of your child's imagination and build up important critical thinking skills.

Find out whether a longer airplane will fly farther or a wider paper airplane.

When you see those sunscreen "protection levels," what does that really mean? Try this experiment to find out.

This science fair project idea examines whether the colors of the spectrum respond differently in the thermal aspect when radiated by the sun.

Science fair project idea that examines different physical characteristics of a chosen animal. Make educated guesses about evolution based on animal's form.

Experiment about connection of senses of taste and smell. Using blindfold and noseplugs, administer blind taste test. Analyze results and organize data.

This educated-guessing game is great for preschoolers. This activity helps your child work on her reasoning skills.

Make a DIY golf putter and design your own golf putting course in this 2nd-3rd grade arts and crafts/game activity.

Have your child build his own mini waterfall, and help him develop his planning, problem solving, and architectural skills.

Looking for a fun summer adventure? Learn what it was like to be a prospector during the California Gold Rush by panning for gold in a local creek.

This science fair project idea determines what household items are good conductors of electricity.

Cleaning can be a chore, but not with this sudsy experiment!

Most people assume that cold water freezes more quickly, but could that be false? Does hot water freeze faster than cold water? Let's find out!

This science activity will help your student explore the changes that occur to transform an egg from raw to soft to hard-boiled.