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

Get your learning lasso ready for this plants and animals round-up! Can your child tell the difference between a living and non-living thing?

Write down the name of each season that is shown in the pictures then color them and turn this worksheet into a unique placemat that can be used year-round!

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!

Help your kindergartener cut out the shapes at the bottom, then match them up to the right season. Then go crazy coloring!

Go cloud-gazing on a nice day, and use this fun cut-out chart to name the types of clouds you see!

Go green and grow your own vegetable garden! With this helpful cheat sheet, you can learn a bit about planting radish.

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

Rain, rain, go away! What kinds of items would you see on a rainy day? Circle what belongs on a rainy day.

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.

Go on an adventure hike and discover what's in your backyard or around your neighborhood! Help your preschooler look for living and non-living things.

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!

Next time you're outside, go on a treasure hunt with this activity from PBS KIDS' Dinsosaur Train. Then, write all about your nature treasure loot!

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.

Practice your detective skills with this fun worksheet! Have your child go around the house and see how many things from the list they can find.

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!

Do you wish to boldly go where no astronaut has ever gone? Blast off with this coloring page that features four new planets for you and your crayons to explore.

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.

Teach your kindergartener a few words that go with different smells to help him expand his vocabulary and continue learning about the five senses.

Do shoes go on your head? Of course not! On this prekindergarten science worksheet, kids draw a line to connect each piece of clothing to the correct body part.

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

Review proper protocol for disposing of different materials in this lab safety worksheet!

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!