Teach your child the meaning of recycle and reuse by repurposing plastic spoons as plant markers for your vegetable garden.

Get your sense of humor ready for this fun science experiment that demonstrates the fundamental physics of air pressure.

Would your dog prefer homemade or store-bought food? Raw or cooked? Test your dog's preferred diet in this fun experiment.

Here's a science and nature activity to help your kindergartener get outdoors and learn about the structure of leaves.

Demonstrate the properties of pressure and surface tension to explain how water can stay inside an upside down glass using cardboard.

This science fair project idea determines if the temperature of rubber effects how high it bounces.

We all know that the Moon has different phases, but it can be hard to figure out why. Try this activity to see how the Moon's phases really work.

With this hands-on activity, you'll show how fall colors are hidden in the leaf all year long!

This science fair project idea explores whether cats can be trained in the same way that dogs can.

Learn about the effect of artificial light on plant growth versus natural sunlight and delve into some biology and botany concepts in this science project.

How do animals keep warm? In this experiment, find out whether fat insulation resists cold temperatures and learn how this works in the animal kingdom.

Here's a math, science, and social studies activity: help your kindergartener become a "coin archaeologist" by examining how different coins look and feel.

Science fair project which simulates the global conveyor belts on a small scale, and observes the effects of wind, density and temperature on water movement.

What is biodiversity? Kids will study different areas of their backyards to see which is the most diverse to learn about biodiversity and random sampling.

This science fair project idea builds models of various types of bridges and then determines which bridge design is the strongest.

Who knew that you could make beads out of rose petals? Not only can it be done, but the beads smell wonderful!

Here's a science experiment that gives your kids a chance to see how fire needs oxygen to burn, with a little math and writing practice thrown in.

Science fair project which measures whether tsunamis are more destructive when they are caused by an earthquake or by a meteor.

In this project, learn about animal vision and different kinds of eyes: ocelli, compound eyes, and camera eyes. Find out what a jellyfish or grasshopper sees!

Crystals are a very special structure. In this third grade activity, your child will learn how to grow salt crystals.

This science fair project idea examines whether plants are still able to grow normally if they are turned upside-down.

Determine which kind of rock (igneous, sedimentary, metamorphic) has the greatest reservoir capacity, which is the ability to hold the most oil and natural gas.

How do series and parallel circuits work, and which produces the brightest light in a light bulb? Construct both in this project and find out!

Check out this mind-blowing experiment in which a hard-boiled egg will fit through an impossibly small opening with the help of only a few matches!

Show your child how and why the microwave works, while demonstrating just how strangely foods can behave while inside the crazy cooker.

Determine if gender affects the ability to identify different smells.

In this simple science project, learn about what causes dew and what affects dew formation with a drinking glass, ice, and a soda bottle.

Does electricity move better through thick wires or thin ones? kids will conduct this classic electricity experiment for this science fair project.

This experiment works due to a simple principle: plants need light. Build a shoebox maze and watch the plant work though the obstacle course, searching for sun.

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.