Determine whether a hot liquid cools off faster when liquid is added before or after a two minute wait.

Examine the impact of insecticides on plant growth.

Illustrate the idea of light refraction with this exciting and mystifying experiment.

Learn about endothermic and exothermic reactions and energy exchange by experimenting with temperature change in chemical reactions.

This simple activity is not only fun, it's also a useful way to organize children's closets — and offer kids some autonomy to boot.

This experiment provides a graphic illustration of the chemical reaction that occurs when you activate a hand warmer.

Explore how sound waves are reflected and absorbed by producing echoes. Analyze which locations produce echoes.

Test the placebo effect in different groups of people.

Slime mold is no longer classified as fungi! So what is it? In this cool science fair project, learn how to grow slime mold and explore its behavior.

This fall, make a leaf crown that will encourage creative play and your child's interest in the natural world while you help them build fine motor skills.

A great science fair project on solar oven design that helps kids learn about solar power and solar heating.

Develop a new system for predicting geographic changes. Demonstrate the nature of geographic change. Make logical predictions.

Help your first grade scientist learn about metamorphosis by observing the life cycle of some interesting creepy crawlies.

Want to make Halloween truly eerie? Science to the rescue! These ghouly hands come alive with a little help from simple chemistry.

This project analyzes people's emotional responses to images in painting vs similar images in photographs.

Grow borax crystals and get your child excited about Earth science with this crafty science experiment.

Find out which type of sponge holds the most water.

Here's a household scavenger hunt that shows kids the natural sources behind everyday objects...and builds reading skills, too!

Make a bear cave for your child to play and explore, learning about bears and winter hibernation.

Give some of your local ladybugs a warm place to stay for the winter by making a ladybug home with recycled materials.

This fun and crafty activity is easy enough for your child to lend a helping hand and makes a great indoor or outdoor game.

This project examines whether playing music during class helps students learn or if it distracts students from learning.

Do hand soaps and sanitizers prevent the growth of bread mold? If so, why? Kids will find out with this fun and informative science fair project idea.

Take the art making outside: have your first grader make a clay relief sculpture of the natural world. This is a great activity for summer.

Check out this fun middle school science fair project idea on Newton's third law of motion and how you can change the speed of a rocket.

The objective of this science fair project is to examine the basic principles of air pressure using simple materials like a balloon, straw and string.

Combine science with reading and art to help your first grader create an attractive holiday gift for a beloved friend or relative.

Would it hurt to skip brushing your teeth just this once? Let's find out by seeing which foods produce the most mouth bacteria.

This weather spinner will improve observation skills by encouraging children to examine and track weather details and patterns.

This project explores whether nails, toothpicks, straws, or pen nibs are best for applying ink to paper.