Preschool - 7th Grade Science Resources : Page 70

What's a crater, and how does it happen? Here's a kindergarten experiment with safe, nontoxic ingredients.

Your child helps the environment while saving your family money in this fun and rewarding "Gas Guzzlers" competition.

Aquariums are usually reserved for fish, but this aquarium will contain creatures from your child's imagination!

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

Ever wonder why refrigerator lights turn off when you close the door? Does the darkness prevent food from spoiling? This experiment, determines just that.

Show your fourth grader how to see her heart in action. Make a simple device out of a drinking straw and clay to help her spot the movement of her pulse!

Invite your kindergarten scientist to conduct this color mixing experiment to discover which primary hues make a rainbow of secondary colors.

In this science fair project, we'll use a liquid crystal thermometer to find out whether exercising makes a difference in people's temperature.

This project determines the age of a tree using a growth factor chart instead of cutting the tree down to count the rings in its base.

Use dirt and different colors of craft sand to make unique layers in a clear plastic cup to represent the layers of the Earth.

This science fair project idea explores whether color affects a person's emotional state.

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

You and your child can create this beautiful butterfly mobile for hanging anywhere in the home (and learn about this magical creature while you're at it).

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

Amaze your kids by separating a salt and pepper mixture using an "electric spoon" charged with wool.

Construct and experiment with a periscope using reflected light rays to gather an image.

Instead of the traditional egg hunt, try this creative variation that will result in a beautiful Easter garden.

In this cool experiment, learn how to find specific gravity of minerals using liquids of different densities to see which substances and items sink and float.

Prove that the Earth is not flat. The objective of this science fair project is to measure the angle of the sun and calculate the circumference of the Earth.

Learn whether writing things down really makes things easier to remember.

It's a rare kid who doesn't like a sandbox. Next time you're out digging, build in some earth science, too.