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

Learn about sound physics and do a survey experiment to explore the difference between sound and noise in this science project.

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

Learners hypothesize about and experiment with soil erosion in this hands-on activity.

This science fair project idea investigates the difference in reaction times between boys and girls.

Did you know your body is full of simple machines? This project looks at one of the third-class levers in the human body: your arm!

What is elasticity? Students will investigate how this concept applies to bouncing ball physics by testing the bounces of balls made out of different materials.

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

The purpose of this science fair project is to explore whether UV light passes through some colors and not others by looking at blue, red, purple, and clear.

Teach your creative second grader about proportions, animals, and proper cutting methods with cucumber carving.

What keeps a an item cooler, polymer crystals or ice? Find out in this cool science experiment!

This science fair project idea investigates whether air has mass and weight.

Your child might have noticed how bubbles quickly lose their colors and pop. Check out this creative way to make those bubbles last longer.

Does your child always demand to know why the sky is blue, how the sun moves across the sky, or where wind comes from?

How does smell affect taste? Ready your taste buds--in this project, you'll gather some test subjects and do a taste test to see how much smell affects taste.

Want to make Halloween truly eerie? Science to the rescue! These ghouly hands come alive with a little help from simple chemistry.

The goal of this evaporation experiment is to learn about how different external conditions affect drying time.

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

In this project children practice the scientific method while playing with puffy paint.

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

Here's an interesting activity that will enable your child to make his own magnifier out of a drop of water

This science fair project idea examines the reason boats are shaped and engineered.

This science project explores the concept of being opaque or clear. Can you make something clear opaque? Or something opaque clear?