Explore scientific concepts with this experiment that introduces kids to the scientific method!

4th graders construct an ocean food web to learn about consumers and trophic levels, food webs, and food chains in this cool ecology science fair project.

Check out this fun science fair project idea to determine if the size of a particle affect the rate or speed of a chemical reaction.

Try this activity with your child to explore what happens to rain (and the living things that need it) when it becomes polluted.

Dive into the world of cooking oil and smoke points to discover just how fast some oils start smoking.

Will increasing the amount of salt in water effect how slow or fast the water freezes?

Is the birthday paradox really a paradox, or just an intriguing problem that defies intuition? Find out with this birthday paradox science fair project.

The purpose of this science project is to investigate which will grow larger plants: compost, soil and Miracle - Gro, a mixture of both.

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

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

Learn how matter transmits sound with a simple, hands-on experiment using sand, water and air.

Determine if it is easier to memorize colors, words, words in phrases, pictures or numbers. Determine at when retention rate in each category is the best.

These science fair experiments demonstrate the chemistry of rust and the oxidation process.

Learn the anatomical and physiological differences between central and peripheral visual systems.

Try this simple activity with your middle schooler to help him develop an understanding of why scientific classification systems exist and how they work.

Science fair project which compares the rate of temperature change and the maximum temperature as a result of the angle of light radiation.

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.

Explore the best way to store popcorn kernels. It examines the impact of moisture and temperature on unpopped kernels.

Water, along with soil and light, is a necessary component for plant growth. So what's better for promoting plant growth: tap water, or rain water?

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.

Think about the adaptive utility of an important aspect of our physiology.

When you rub a balloon on your head, your hair stands up; but is that true for everyone? Does hair color affect static electricity?

Learn how to make a food pyramid with animals in a a coniferous forest ecosystem around your home.

This fall, make a leaf crown that will encourage creative play and your child's interest in the natural world while you help them build fine motor skills.

Store bowls of fresh fruit in differently lighted environments. Contrast freshness based on appearance.

Recreate the fantastic phenomena of solar eclipses with your child using just a flashlight, a quarter, and her very own face!

Kids build a rainforest food web to explore trophic levels in this cool science fair project for 4th grade.

This clay "painting" activity encourages and supports creative development and critical thinking skills.

Young scientists will investigate people's preferences for saltiness, and make some inferences about genetics and diet.

This science fair project tested various nose cones to determine which would be the most ideal shape for propelling a water rocket.