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

Science fair project that determines whether disinfectant sprays or disinfectant soaps are more effective at removing bacteria from hands.

In this project students determine which instruments composers use to create birdsongs and birdcalls in classical music.

Science fair project which determines if plants really do need water to grow, or whether they just need to be kept wet.

What's the best way to make DIY compost? Kids will learn about aerobic and anaerobic decomposition while learning to appreciate the value of composting.

Do you think heat can affect a plant's growth rate?

Here's a guide to starting a community clean-up project from scratch.

This is a fun and inexpensive project and it's a great way for your child to build basic geometry skills, like shape recognition and pattern/angle familiarity.

This science fair project idea tests whether tall people have the ability to swim faster than people of average and shorter heights.

Is that seed alive or not? Here's an exciting way for kindergarteners to make a seed museum that your child can watch, using simple household materials.

Check out this cool science fair project idea to explore the relation between onions and eyes and how to prevent eyes from tearing while cutting an onion.

This experiment evaluates how a diet that is rich in "mood-enhancing" foods affects the way people feel over several weeks.

Examine the influence of the phase of the moon on moisture capillarity in garden soil. Measure and record the depth at which water is first detected.

Research active ingredients in anti-aging creams. Test skin creams on volunteers, document the effectiveness of the creams with before an after photographs.

Young physicists learn about apparent weightlessnessâthat weird sensation you sometimes feel in elevators, turbulent airplanes, and roller coasters.

Science fair project which determines whether plants are able to get enough nutrients from different types of garbage.

Choose a timeline to live without technology. Keep a journal of all the issues encountered. What are the benefits and cons of modern technology?

Construct calorimeter and determine the caloric value of a sample of foods by change in temperature for each of the foods.

How do the phases of the Moon and gravity cause spring tides and neap tides? Does the Sun play a role in the tides? Figure it out in this fun science project!

Has your kid noticed how much bigger the moon looks when it's low in the sky? Here's an activity you can do to show them that it's just an optical illusion.

Investigate the different ways in which objects and organisms can be classified, create your own. then have volunteers classify using their own systems.

Science fair project that explores the phenomenon of Non-Newtonian fluids by exerting force on different materials.

Encourage your child to jump into sea creature science by creating her own colorful "socktopus" sculpture.

Science fair project that determines whether moths are attracted to one color of light more than others.

What is the coldest temperature possible? In this cool experiment, you'll calculate absolute zero by extrapolating data on the temperature and volume of gas.

This project involves the programming and development of a 3D Rubik's Cube application using C++.

In this experiment, young ecologists will learn about a type of edge effect: how trees and plants at the edge of a forest can act as a weed filter.

The objective of this science fair project is to determine the rate at which participants can respond to different patterns.

Introduce your child to science with something they see everyday--their shadow!

This science fair project idea investigates how images are influenced by changes in light.