Marshmallows are made of sugar, water, and air pockets. Since the marshmallow is flexible, will air pressure cause it to expand when heated in a microwave?

Help your child celebrate the summer and the sun by making a sandy seascape.

In this sound experiment children listen for differences as they tap on a bag of air, a bag of water, and a wooden block held up to their ears.

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

In this experiment you explore how tectonic plates move to create land and expand bodies of water.

Want to spark your third grader's interest in gardening? Help him make popsicle stick fairies to decorate an enchanting garden oasis.

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

In this project combining nature, art, math, and science, children make rubbings of leaves then observe shapes and structures and sort the leaf images.

Combine your child's natural curiosity with his developing classification and writing skills by helping him create a backyard field guide.

Discover whether a metal will expand under hot water.

In this project, waves of vibrations are experimented with using water in glasses.

Help your curious third grader construct a dazzling spinning wheel that will teach him about the science behind colors while providing some silly entertainment!

Learning about how plants grow is a building block in the early grades science curriculum. Put a fun twist on this life science concept with these cup monster friends!