Did you know people can live with just one kidney? Get a head start on human anatomy with this info sheet on kidneys.

The brain is the most important organ in the human body. Get a basic grasp on the parts and functions of the brain with this anatomy info sheet.

Did you know our sense of smell is also called "olfactory"? Learn about the structure and function of the nose with this human anatomy sheet.

Children will look at a model of the human arm and hand bones, then refer to a chart to label it correctly, in this anatomy worksheet.

Did you know that a "kite" is actually a type of bird? Learn about this species of kite with a fun info sheet, including a dot to dot puzzle!

Children learn about the animals that inhabit Australia in this tracks-matching activity.

Children get to know animals of South America in this nature-themed worksheet.

Children put their science vocabulary to the test with this engaging crossword puzzle!

Introduce children to physicist Albert Einstein — and a bit of theoretical physics — with this mini biography.

Launch into learning with this worksheet on Gemini 4, one of the original missions in the early days of the U.S.'s space program.

Find out what the scientific name for a walrus is in this under the sea coloring page then have fun coloring in the two wobbly walruses and their ocean home!

In this worksheet, children identify and illustrate four things all plants need to grow. They then answer three simple research questions about plants.

Did you know that our skin is actually an organ? In fact, it's the largest organ in our bodies! Learn about our skin with this anatomy sheet.

Tortoises lived in prehistoric times, and they looked pretty much the same then as they do today. Get to know this long-living reptile with a fun dot to dot.

This worksheet features Mercury, the smallest planet in our Solar System, and also the planet that's closest to the Sun.

In this recycle worksheet, kids color the different recyclable objects, then match them up with their corresponding bin. Try our recycle worksheet on Earth Day.

In this worksheet, children practice identifying animals of North America by their tracks.

Which comes first, genus or phylum? To complete this life science crossword, kids need to put the 9 levels of biological classification in the correct order.

Here are listed a handful of natural resources, for kids to classify as renewable resources and nonrenewable resources.

During the Gold Rush, people weren't sure if they found gold or something else, and these easy steps would help them be sure.

Children will connect their understanding of gases to real-world items as they circle all of the pictures showing gases.