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

Learn a bit about meteors, asteroids and comets as they travel across the night sky. Can your child round out the page by adding color to these orbiting rocks?

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

Use this lightning diagram to go along with what your child is learning about weather systems in school!

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

Go from a butterfly beginner to an expert with this worksheet, full of pretty butterflies and tons of information about where butterflies live.l

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

Use the clues in this crossword puzzle to fill in the blanks with different types of snake names. Learn interesting facts about snakes as you go!

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.

Learn about the plants and animals that make deciduous forests their home, then complete the crossword puzzle.

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!

This Louis Pasteur biography goes over his accomplishments, and includes a bacteria-based science activity at the end!

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.

For your budding environmentalist, here is an information sheet on a well-known endangered species, the Komodo dragon!

If your student is stuck on Celsius, hand him this multiplication and division practice sheet.

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

Looking for a worksheet to help your kid with his knowledge of human biology? This printable will help him with the digestive system.