This project determines the age of a tree using a growth factor chart instead of cutting the tree down to count the rings in its base.

Use this fun activity to make an optical illusion picture that helps your kindergartener explore the sense of sight, and sharpen his observation skills!

This science fair project idea explores plant growth from a bulb, root, and a stem and investigates asexual plant reproduction.

Get a better understanding of water content by dehydrating carrots.

In this activity your child will create their very own marble maze!

In this science project, learn about water transport in plants and make a beautiful dyed floral arrangement with cohesion, adhesion, and xylem tubes!

This science fair project teaches students about wilting and browning of salad greens.

Science fair project which teaches you about the principles of physics within a vacuum by creating a vacuum chamber.

Create safe lightning for kids! They'll learn how to make lightning at home with this fun science fair project idea illustrating static charges and grounding.

In this science fair project, learn how to make gears and find out why they transmit torques in predictable ways.

Here is a cool and easy science project to determine the rate of chlorophyll breaks down and how it affects the color change of grass from green to yellow.

Learn all about balance and motion as your child designs a corn maze!

Here's a first grade ladybug game that explores how air can move solid objects, and adds some measurement practice, too. Play, learn, and enjoy!

Ever wondered how a plant drinks water? This science project will teach you how and help you create a beautiful floral display!

Science fair project examining barometric pressure, and how it can be used to predict the weather. How does atmospheric pressures relate to weather conditions?

When you cut a flower to put into a vase, it'll eventually wilt, even with water and sunshine. But is there another scientific secret to keeping flowers fresh?

Kids will learn about insulation, heat conduction, and the economic benefits of energy efficient windows in this cool science fair project.

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.

This science experiment tests why guacamole goes brown and if leaving the pit in will stop guacamole from turning brown.

What combination of cloth and stain will be the easiest for removing stains? Test and experiment!

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.

In this fun science fair project, make two different scale models of our solar system using Astronomical Units and planets' relative size!