Fossils have a lot to teach us about life on earth, but they can also be used to help teach kids the scientific method.

How does the butterfly become so beautiful? Learn about the four stages that it goes through in its life.

Here are four examples of mineral resources for kids to think about, plus a short explanation of what a mineral resource is.

Every four years something funny happens with our calendars -- we add a day! Why do we do this? Discover the science behind leap year.

Budding inventors can get a fun review of the simple machines with this word search.

Worm your way through this soil maze, which doubles as a fun way to review the names of the different soil layers.

I spy with my little eye... six simple machines! Here's a fun way to help your child review the simple machines.

Can you help Cornelius create a crazy compost concoction? Help your child review his knowledge of compost and recycling with this fun worksheet.

Here's a fun way for kids to review their knowledge of earth science terms. Challenge your child to give a definition of each word as he finds it.

Can you tell which types of weathering caused each of these changes in the earth? This activity is a great way to review the 3 main types of weathering.

Learning about the functions of plant parts doesn’t have to be puzzling! Review the parts of a plant with this crossword for first and second graders.

Quiz your little scientist on his knowledge of the soil layers! He'll be reviewing some important earth science concepts and key terms.

If your child is fascinated by outer space, he'll love this solar system word search! While reviewing planet names, he'll ponder the mysteries of the universe.

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

Analyze everyday objects and identify states of matter with this second- and third-grade science worksheet!

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

Learn to read a standard thermometer in both Fahrenheit and Celsius in this informative second- and third-grade worksheet! 

How many machines can you find around the house? You may find them where you least expect it!

Discover the many different kinds of conifer and deciduous trees as you complete this word search!

Dig your hands into some earth science with this soil sheet! Your little scientist can hone his reading skills as he learns what soil is and how it is formed.

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!

How do clouds form? Why does it rain? Help your student answer some of these questions by completing this water cycle worksheet.

Practice identifying living and nonliving things with this first- and second-grade science worksheet!

Encourage your little environmentalist to learn about composting! Children will boost their reading skills as they learn what compost is and how it helps the environment.

Learn to identify and name the parts of a seed in this two-page science worksheet and quiz!

Look for natural resources around a farm in this engaging worksheet for second and third graders!

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

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!