What is mulch? Kids will provide soil with a wet blanket of mulch and see if that helps keep drought-stricken soil damp.

Science fair project in which you will start a fire from scratch without using matches or a lighter.

Find out whether putting something on top of a plant will inhibit its growth.

Grow potatoes in a plastic bag—easy to grow and harvest, and yummy to eat!

Create a soda bottle garden that defies gravity! This hanging terrarium is housed in a soda bottle and perfect for crafty kids with a growing green thumb.

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

In this popcorn experiment, students can explore how two things made out of the same material can have very different appearances and densities.

Your child can explore the wonders of science, and the concept of dehydration, along with creating a healthy and tasty treat!

In this activity, your kid will watch coal turn into crystals right before her very eyes, and learn some science along the way!

Science fair project which tests various sedimentary, igneous and metamorphic rocks to find out whether one rock family is stronger than the others.

Which do you prefer: real or artificial? Try this sweet little taste experiment to help your kids develop a better awareness of the food they consume.

What is the hydrologic cycle and how does it work? Check out this fun and easy science project where you will model and learn about Earth's water cycle!

Science fair project in which you will learn more about the natural world by preserving and identifying different animal tracks.

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

This easy at-home experiment is a great way to "see" science.

This science fair project idea examines how well individuals can remember a story they were told and how accurately they pass that story along.

Many ancient cultures used the rising or setting sun to create calendars. Observe the setting sun once a week to come up with your own solar calendar!

With this science fair idea, little scientists will gain valuable insights into the physics behind throwing a baseball.

Help your child create a magical miniature garden in the most unlikely of places: a recycled plastic bottle!

For a fun family activity to introduce your child to genetics, have your child go on a search for dominant and recessive family genes!

This kinesthetic learning activity will help your fourth grader get a firm grasp on the immensity of the solar system.

The purpose of this science fair project is to study the properties of sugar and examine individual preferences for sugar and other sweeteners.

This study evaluates if electronic devices commonly found in most households emit radiation, and if they do, how much?

The purpose of this study is to determine if people can tell the difference between organic and conventional food from looking at, smelling and tasting it.

The rock cycle will come alive for your child when he uses broken crayons to create the three basic rock types.

This science fair project compares the allelopathic affects of juglone, a chemical agent produced by the Black Walnut tree, on two plants.

This science fair project idea examines which type of insulation holds in the most heat.

This science fair project on testing water hardness is a great introduction to practical chemistry. Test and learn the difference between hard and soft water.

Would your child like to learn about a hidden world? All she needs to do is open her box of markers!

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!