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

Glass is everywhere, but have you ever wondered where it all came from? It doesn't grow anywhere -- we have to make it!

Identify the appearance of the moon during its three main phases which include the New Moon, Quarter Moon, and Full Moon.

Never heard of the planet Pirjute? That's because it's Jupiter, with mixed-up letters! Kids unscramble planet names on this third grade science worksheet.

Your child will write about his or her favorite animal. Kids will research their favorite animals online or at the library, then write down three facts.

Is your child trying to answer the question what is weathering and erosion? This info sheet gives good definitions of the terms and some visual examples.

Here is a fresh and fruity way to learn a bit of life science. Sit down with your little one and teach them all the different parts of an apple!

How did salt ever get into the ocean? Find out how, and then try conducting your own salt water experiment.

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

All kids love animals, but how much does your child know about them? Kids will get to learn some animal vocabulary with this wild crossword puzzle.

Have you ever wondered why water in a drinking glass looks clear while water in the ocean looks blue? Find out why with this fun worksheet!

Ocean resources are an incredible part of how we live our lives; read and write about them with this worksheet.

Here's a beautiful science page to help your child learn the different types of clouds.

Collecting data is an important part of math and statistics. Practice gathering data using items around the house or classroom!

Young astronomers unscramble words to reveal the heavens in this fun space science worksheet.

What is the rocky cycle? This info sheet answers that question with the help of a colorful diagram and a shout out to important vocabulary.

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.

Put your kid's observational skills to the test with this word search that will help her learn some of the animals that inhabit a rainforest.

Help your child learn about facts and opinions. Kids will read statements about animals before determining whether each statement is a fact or opinion.

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

This short nonfiction text will provide students with an opportunity to become more comfortable with identifying and defining academic vocabulary words—and they'll have fun learning all about the life cycle of a chicken in the process!

Space enthusiasts will love learning about Freedom 7, the first manned American space mission.

How much do you know about our home planet? Boost your Earth knowledge with this science printable.

Do you know why Mars is called the Red Planet? Find out that and more on this planet printable.

Kids will learn about fossils in this worksheet. Help your child learn about the scientific method by getting him to examine a fossilized dinosaur skeleton.

Did you know that baby turtles are born all alone on the beach? Learn about the life cycle of a turtle with this life science worksheet.

Without rain, we wouldn't have any puddles to splash and stomp in. Does your third grader know why and how rain falls from the clouds?

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

Without light sources, we wouldn't have any light. Can you imagine a world without any light sources?

Teach your child how to respect the ecosystem with a science worksheet that doubles as a coloring page. Can they identify the sources of pollution in the scene?