Have you ever wondered why manhole covers are round? It's a good thing to know -- big companies sometimes ask that question in interviews.

Children will connect their understanding of gases to real-world items as they circle all of the pictures showing gases.

Practice describing, or classifying, different items by their properties in this inviting worksheet!

What do juice, water, and tea have in common? Compare and contrast matter in this engaging second-grade worksheet!

Kids practice identifying solids for a lesson on the states of matter in this 1st grade physical science worksheet.

Kids practice identifying liquids for a lesson on the states of matter in this 1st grade physical science worksheet.

Is a feather liquid, soft, spotted, or heavy? Practice describing everyday objects, or matter, with this second-grade science worksheet!

What do a key, a goldfish, and a tortoise shell have in common? Find out with this second-grade science worksheet!

Practice describing different objects and substances in this colorful worksheet!