Try this experiment to give your curious kid a more "solid" understanding of how temperature affects the states of matter.

What is condensation? Little mad scientists will learn about condensation, states of matter, and air pressure by conducting this cool science experiment.

Does your child always demand to know why the sky is blue, how the sun moves across the sky, or where wind comes from?

Let your fourth grade chef mix up butter and sugar with scientific principles about different states of matter, and get delicious toffee, too.

To help your child learn how to use a thermometer, try this temperature collecting activity at home.

Learn about nature by making your own mini moss garden.

Make sourdough bread...and learn some colonial history and modern science in the process!

Help your child learn about animal classification with this fun and delicious activity.

Science fair project which will teach you more about the foods that you eat, and learn which ones are healthier choices.

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

Learn how to make marbleized paper with simple everyday ingredients in this fun activity! Your child will learn about oil and water while doing this project.

In this activity, you'll not only make your own bouncy balls at home, but your child will also learn how polymers are made.

This science fair project will help students learn about non-vascular plants, such as mosses.

Learn whether Mylar Balloons last longer than Latex Balloons or vice versa.

Learn with makes water molecules work with this fun and easy science activity!

Learn all about balance and motion as your child designs a corn maze!

Learn how to make a weathervane with this fun and simple meteorology project for fourth graders.

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

Learn to solve a crime scene investigation using an important forensics tool: oblique lighting.

In this cool engineering science fair project, kids learn how to build Hero's engine: an enlightening example of Newton's third law.

Learn about Ikebana, or the Japanese art of flower arranging, with your child while artfully arranging spring flowers!

In this activity, your child will learn about a style of gardening that uses moss, also called "kokedama."

The goal of this evaporation experiment is to learn about how different external conditions affect drying time.

Your child will learn science and make a fun new malleable toy with this balloon sandbag science experiment.

Experiment with buoyancy to learn how a submarine rises and sinks in this classic science experiment.

Learn how to make a ping pong ball anemometerâa device used to measure wind speedâin this free science fair project idea.

This science project challenges students to learn about and classify weeds and discover new practical uses for weeds.

Make a wish upon a tree with this craft that also helps your child learn more about Chinese culture.

Learn how to make an anemometer with step-by-step instructions in this cool science fair project idea for 4th grade.

Learn about the layers of the Earth and make a model! Create a earth layer book, cake, or clay diagram.