Can melted wax turn back into solid wax? Can scrambled eggs turn back into raw eggs? Learn the answers to these questions and more with this second-grade worksheet about reversible and irreversible changes!

Listen closely! Do you hear anything? Identify examples of sound energy in this kindergarten and first-grade worksheet!

Describe how things feel when you touch them and push on them!

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

Learn about the texture and hardness of different objects in this second-grade worksheet!

Help your child's curiosity blast off by introducing them to some basic chemistry with this simple rocket demonstration.

Can your child tell what will be attracted by a magnet? Challenge him to think about why magnets attract certain objects.

Young inventors will have a blast with this worksheet on compound machines! Use three of the six machines together to make work easier.

Meet the master of compound machines: Rube Goldberg! His wacky contraptions put a whole new spin on the use of simple machines.

Magnets are fun to play with, but how do they actually work? Have your child circle the objects he thinks the magnet will attract.

Alfred Nobel, though he held over 300 patents in his lifetime, is most famous for inventing dynamite.

Teach your child how we measure temperature with these printable thermometers!

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

Kids write down examples of solids, liquids, and gases in this 1st grade physical science worksheet that focuses on the states of matter.

Identify examples of pushes and pulls with this cut-and-paste worksheet for kindergarteners and first graders!

Is orange juice a solid or liquid? What about a cookie? Practice classifying everyday objects in this first- and second-grade states of matter worksheet!