Have you considered why elephants have trunks, or why polar bears have thick fur? Reflect on animal adaptations with this fourth-grade worksheet!

Introduce your flashlight to mirrors. Mirrors are cool surfaces that reflect light just as well as they reflect your face.

Introduce your child to a fascinating new animal, the Baird's tapir. This is just one of many endangered species around the world.

Where'd that shadow come from? Next time a scary shadow crosses your path, you'll know just what to look for.

Who knew that the machines of the world are all made of just 6 simple machines working together? Introduce your child to simple machines with this worksheet.

It's easy being green when you have our Earth Day game for a guide. Just print out this Earth Day game and get ready to score one for the planet.

Encourage your child to take a nature walk, using the prompts on this worksheet to write and draw their observations of plants, animals, sounds, and more.

A handy worksheet that breaks down the properties of metal. A good physical science review sheet to keep around for reference.

Learn about pearls, which seem like normal jewelry from a factory but are actually made from the mucus of mollusks!

Find out more about what REALLY dwells in swamp ecosystems with this worksheet all about swamps.

Dive deep into your body's circulatory system with this worksheet on blood and what it's made of.

Get to know some of the friendly, furry, feathery river wildlife that live near American rivers, then match each one to its home.

It's a paper parachute brigade! Learn how to build your own parachute, and learn how the parachute was invented over 500 years ago.

Did you know that each tree tells a story? In this worksheet, children peer inside a tree to learn about the layers in its trunk.

Looking for a worksheet to help your child with science? This printable will help them with their biology vocabulary.

Learn step by step how to create a report! Research facts about camels, complete the sentences, then use the sentences to create a report about camels.

There are lots of stories around the world for the rabbit moon: a rabbit image seen in the shadows on the moon's face. Here's one for young moon-gazers!

Challenge your child' memory skills with this colorful worksheet. This fun printable will help with memorization skills and spatial awareness.

Looking for a worksheet to help your kid with science? This printable will help him with human anatomy and vocabulary.

Give your kid help with his science skills with this worksheet, which practices natural disaster vocabulary.

Expand your sea creature vocabulary with this Life in the Reef worksheet!

Consider the factors that affect magnetic forces in this informative third- and fourth-grade worksheet!

Connect forms of energy to real-life scenarios in this third- and fourth-grade worksheet!

Get a lesson in sports and science with this engaging third- and fourth-grade worksheet!

Make sure your young scientists stay safe as they conduct experiments!

Take a science-filled trip to an amusement park in this third- and fourth-grade worksheet!

Determine which magnets have the strongest force in this third- and fourth-grade worksheet!