Blend science and math to explore a very important first grade social studies question: does our planet contain more land or more water?

In this cool catalase and hydrogen peroxide experiment, kids put a potato in a jar of hydrogen peroxide to see how catalase acts as an enzyme.

In this fun guessing game, your child uses his sense of smell and taste to figure out what is in the container. Here's how to play:

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.

The objective of this science fair project idea is to determine if sound travels best through the air, water or a solid.

In this activity, your child will make her own "quicksand" to better understand how a substance can be both fluid and solid at the same time.

How sensitive is your skin? Here's a fourth grade science experiment that lets your child figure it out.

Science fair project that examines how temperature affects density and how density in turn affects the behavior of helium gas.

Let your fourth grade chef mix up butter and sugar with scientific principles about different states of matter, and get delicious toffee, too.

Kindergarten algebra is a lot different than high school. In kindergarten math, algebra means grouping like things, or noticing what doesn't belong in a set.

This science fair project idea examines whether boys and girls differ in reflexes.

This science fair project idea discovers whether there are some objects that do not fall at a constant rate.

In this activity, your child will be challenged to create a device that protects an egg when it is dropped from a height of about 10 feet.

When you see those sunscreen "protection levels," what does that really mean? Try this experiment to find out.

The project determines the forces that cause paper airplanes to fly and determine which type of paper airplane flies the farthest.

Collect meteorite dust with a magnet in your very own backyard! The objective of this science fair project is to gather meteorite dust to study outer space.

Get your fifth grader involved in some earth science by helping her plan and create her very own rock collection.

Learn how to tell time by the sun with this cool science fair project idea that tracks how the accuracy of a sundial changes over time.

Science fair project which determines whether the size or the thickness of a piece of paper has an effect on how many times it can be folded in half.

This activity is a fun way for your first grader to learn about how veggies help your body while being creative with art and drama. Here's how to get started.

Use reusable, recyclable materials--along with a dose of imagination--to build a castle with first grade geometrical forms.

Create homemade seed packets with your kids. This activity combines your kids' love of science and the outdoors with a little writing and drawing fun.

Help your kindergarten scientist understand the concept of surface tension with this simple science experiment.

Play with balance and simple engineering as you hurry to create a sturdy rock tower.

This science fair project idea examines whether the colors of the spectrum respond differently in the thermal aspect when radiated by the sun.

Find the North Star, and measure your latitude! The purpose of this science fair project is to find latitude and learn about geographic locations.

For your budding first grade scientist, all you need is some simple, natural materials to create an amazing ant farm. Here's how to get started.

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.

This science fair project idea explores how far the âdanger zoneâ is from different types of caution signs.

In this science fair project, students make their own rain gauge to measure rainfall.