This science fair project idea explores whether talking to a plant will help it grow.

Check out this cool science fair project on identifying rocks and minerals for kids.

Science fair project which teaches you about the principles of physics within a vacuum by creating a vacuum chamber.

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.

In this activity your child will create their very own marble maze!

This project examines whether people's taste perception is influenced by what they see.

Children have a naturally inquisitive mind. Foster their curiosity with a walk through an autumn field or park to answer age-old “why” questions. As you walk with your child, you can encourage them to ask questions.

This science fair project idea creates a sedimentary rock and to investigate what takes place during the rock cycle.

Test your friends to find out if you can replicate the placebo effect's incredible results.

What is biodiversity? Kids will study different areas of their backyards to see which is the most diverse to learn about biodiversity and random sampling.

Be a chemist for a day and study the simple reaction between sugar and heat. Try heating sugar and see what happens!

In this design challenge, your child will make a bottle rocket using typical household items.

Learn how to make a hygrometer to measure relative humidity in this project. Make a sling psychrometer hygrometer with gauze, thermometers, and a bottle.

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

Is there a relationship between caffeine and heart rate? Students will determine the effect of caffeine on heart rate in this fun science fair project.

This science fair project idea develops an understanding through experimentation of which shapes are the most structurally strong.

The objective of this science fair project is to examine the effects of temperature on salt and water solutions, as they form crystals over time.

This science project teaches students the relationship between compost and plant growth. Students conduct an experiment with different types of compost.

Learn about this simple machine and make a pulley of your own to use for fun science trials.

What are buttress roots? In this fun science project, make a model of a rainforest tree and learn how they help trees survive in the tropical rainforest!

This science fair project idea compares biodiversity between drops of water.

This science fair project idea investigates if webbed feet help a duck (and others) swim.

Is it magic? No...it's the amazing, gravity-defying capillary action experiment! Kids will love this dramatic and enlightening science fair project.

In this plastic wrap science fair project, you'll learn about polymer permeability and find out which plastic wrap keeps food from dehydrating best.

This cool and easy elementary school science fair project idea provides the basic information on the use of our senses to experience the world about us.

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

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.

In this open-ended activity, students will be given a small quantity of three types of materials and asked to design a prototype for “something that will improve the school.”

Kids will make predictions about cricket behavior by conducting this fun and easy experiment which simulates different environments for crickets.