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Checkerboard play challenges students to use spatial reasoning and computational thinking.

This experiment will explore if and where fractals can be found in the natural world.

Demonstrate and explain holographic technology. Determine if a holographic image of a magnifier still magnifies the object beneath it. Explain the effect.

Design and build a balloon rocket from an existing design. Think of the ways in which existing designs can be improved, new practical applications

Develop your child's mathematical and engineering skills with this fun building brick challenge. In this activity, your learner will be challenged to create a boat out of building bricks.

In this activity, children will work on their mathematics and engineering skills as they attempt to recreate the Eiffel Tower out of building blocks!

Explore the concept of receptive fields and why different parts of our body have different levels of sensitivity.

This science fair project idea shows kids how to grow mold and whether mold grows better in dry or moist conditions.

Science fair project which will teach you more about the foods that you eat, and learn which ones are healthier choices.

Can you increase the light and plant growth in your garden using mirrors? In this experiment, measure light reflection and find out!

Make water and clay play a little more scientific with this hands-on experiment that teaches displacement and shows how an object's shape affects its buoyancy.

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

In this free science fair project, build a star clock and learn how to tell time on a clear night by observing the big dipper!

Which battery lasts the longest? In this science fair project, kids will test popular brand name batteries like Duracell and Energizer against generic brands.

In this science fair project on the relationship between distance and time, kids explore the behavior of gravitational acceleration through direct observation.

Create a DIY Electromagnet! Using a 9v battery to create an electrical field around a nail, students explore electromagnetism in this cool science project idea.

This science fair project idea explores if an LED light can be powered by vegetables and/or fruits.

This experiment will investigate whether reward or punishment is more apt to motivate people.

Research information on vitamin content in foods, Examine the effect of vitamins, test organic samples of fruits, meats, grains for vitamin content.

This science fair project idea determines the probability of a coin landing heads or tails.

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!

Science fair project that compares tree leaf size and shape based on the leaf's position in the tree. Is their is a noticeable difference between high and low?

Science fair project determines relationship between number and variety of insects and spiders by collecting and counting invertebrates in a ecosystem.

With this cool floating rocks project, your child will get some hands-on experience with buoyancy and learn why certain rocks like pumice are able to float.

Assess physical and mental states of subject before and after drinking coffee. Compare initial expectations with their reported conditions.

The goal of this science fair project is to demonstrate the effects of oxidation by writing a message in invisible ink made from lemon juice.

Learn about the power of exponents. The objective of this science fair project is to explore and understand how exponents are used.

Test out various brands of permanent markers to see which one is least water soluble.

Help your second grader observe the phases of the moon, and then let the fun loose: he'll get to chart his observations with marshmallows!