First grade science often covers solids, liquids, and gases. This silly science explores serious facts about the difference between all three.

Alive or not? This yeast experiment you can conduct with your little scientist explores the answer to this timeless question.

This easy project for little hands uses mushroom spores to make an imprint of the mushroom, and the result is very beautiful.

Create a three-dimensional X-ray of your child's hand in this simple modeling activity. All you need to get started are black paper and drinking straws

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.”

Explore the craters, maria, and highlands on the surface of the Moon! In this fun science project you'll create a 3-D model of the moon using paper mache.

Wool can absorb 1/3 of its weight in water, while still keeping the body warm. She can test this theory by performing a scientific sock comparison!