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

Gear up to go into the science lab with the help of this activity!

All living things go through cycles. Learn about the life cycle of an amphibian with this diagram of the life of a frog!

All living things go through many changes as they grow to be adults! Help your little one understand how he will grow and change.

Have any good ideas for recreational resources? The term "recreational resources" has to do with the activities we do for enjoyment and the places that we go.

Looking for a way to teach your kids all about the planets? This worksheet is the way to go. It features Venus, the second planet from the sun.

Just like all plants and animals, you go through different stages in life too! Help your child to see how he will change and grow throughout his life.

Learn about spider tortoises, one of the world's tiniest tortoise species, with this handy worksheet. Can't go to the zoo? We bring the zoo to you!

Take a trip down to the deep blue sea and learn about the life cycle of a fish! Fish go through the same stages of life as many other living things.

Can't go to the zoo? We bring the zoo to you! Check out the fulvous whistling duck, a bird with social skills and the willingness to share each other's nests.

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

The best way for your young explorer to learn and understand how nature works is by going outside!

What is the Earth made of? Find out everything that goes on just below the surface in this science reading worksheet.

This fun cut and paste sheet teaches kids about the process an apple tree goes through as it grows.

All living things have a life cycle. Learn about the different stages that a bird goes through from birth to adulthood!

Sandy the bee is going to a party tonight. Encourage your 2nd grader to help him get there on time by drawing hands on the clock for him.

As kids cut and pastes the pictures in the right places on this life science sheet, they learn a little about the process lettuce goes through as it grows.

Your child has probably tried a potato, but does he know the process it goes through to make it to the table? Find out with this life science worksheet.

Budding scientists can learn about an important physical science concept with this worksheet all about density!

Even colors have best friends. In the world of color, these best friend pairings are called complimentary colors.

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

Test your knowledge of prehistoric animals with this life sciences crossword puzzle!

Mammals come in all shapes and sizes - as big as a human or as small as a mouse! Learn about the life cycle of a mouse with this cut and paste activity.

What is a car made of? This worksheet asks you and your child to think about parts of a vehicle and where each listed resource was used.

Kids find forest animals in this third grade science word search. Animal habitat worksheets help students learn about life forms in different environments.

Kids find grassland animals in this third grade science word search. Animal habitat worksheets help students learn about life forms in different environments.

Peel back the layers of the earth in this earth science worksheet. Can you name all of them?

Has your child learned about the life cycle of a frog in school? Test his understanding with this cute cut and paste worksheet.

Here's a great worksheet for teaching your kids all about the planet Mercury. Did you know that it's the smallest planet in our solar system?

Did you know that Uranus can get as cold as -144° Fahrenheit? Learn more about the third largest planet in our solar system on this planet printable.