This science fair project idea explores what it takes to create a biosphere, or a self-sustaining ecosystem.

Can't make it to the beach? Bring the science of ocean waves home with this fun earth science-related craft.

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

Discover which fabrics shrink the most in the wash and why.

Tu B'Shevat is a Jewish holiday during which the "new year" for trees is celebrated. In this activity your child will paint a pot to grow his own plant.

Kids will conduct a cool limewater carbon dioxide test that can be performed with common household materials to learn about the chemistry of this common gas.

In this project, you will observe and record changes in sunspots over two weeks.

This science project examines the effectiveness of various types of laundry detergents on stains trapped on a white handkerchief.

Help your child understand the scientific concept of evaporation with this fun outdoor science activity.

This experiment will explore how manipulating a graph of historical information might reveal new information about data.

Help your second grader observe the phases of the moon, and then let the fun loose: he'll get to chart his observations with marshmallows!

Learn how to grow an avocado plant indoors with your 1st grader in this hands-on gardening activity.

After completing this fun science project, your child will have a better understanding of plants, and they may even develop a green thumb in the process!

Brine shrimp usually live in saltwater. Investigate how salt concentration (salinity) affects the rate at which brine shrimp eggs hatch.

This science fair project idea raises awareness of a real ecological issue.

Your preschooler will engage their senses by making a scented pumpkin to decorate your house.

In this cool sound resonance experiment, learn about frequency and pitch, and use a tuning fork to calculate sound velocity in air.

Make stunning pendulum waves and learn the math behind the patterns generated with this cool and easy science project.