Did you even wonder why some rocks are round and smooth while others are broken up into small pieces?

Can a toy car determine the strength of a magnet? In this cool magnet science fair project, young scientists will learn how to measure the strength of a magnet.

This science fair project idea identifies clouds as a means of predicting the weather.

Learners hypothesize about and experiment with soil erosion in this hands-on activity.

Promote your child's appreciation for Jackie Robinson, an important figure in African-American history, by having your child create a baseball card!

The project determines which laundry detergent is best for cleaning clothes.

Celebrate the Presidents Day the creative way by constructing toilet paper tube figurines of a couple famous U.S. Presidents!

Show your fourth grader how to make a delicate, dried flower bookmark with flowers native to their neighborhood.

This science fair project idea measures out the sugar of various foods and find out whether people can correctly determine how much sugar is in common foods.

Check out this cool science fair project idea that models the behavior of the cold desert plants: xerophytes and halophytes.

Looking for a fun summer adventure? Learn what it was like to be a prospector during the California Gold Rush by panning for gold in a local creek.

Kids learn how to prevent erosion by growing grass. They'll test soil with grass against raw soil in this revealing science fair project idea for 4th grade.

In this science and engineering activity, children will explore types of tunnels and their purposes and then design and build a tunnel of their own.

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.

What is elasticity? Students will investigate how this concept applies to bouncing ball physics by testing the bounces of balls made out of different materials.

Cleaning can be a chore, but not with this sudsy experiment!

Kids build a desert food chain, desert food web, and desert food pyramid in this cool science fair project to learn about trophic levels and consumers.

Saturn is the ringed planet in our solar system, a gas giant with rings made of ice and dust. Let's make a cool scale model with an old CD and some glitter!

Help your children practice their presentation skills by helping them create their very own show called "The Daily News."

The goal of this project is to create an exciting topographical map out of dough.

Check out this cool science fair project idea to explore which other common animals besides scorpions glow under a UV Black light.

How well can people recall what they have observed. Test your knowledge in this fun experiment.