These two children sure look alike -- maybe because they're twins!

Use this fossils worksheet to help a child learn about life on earth. Your child will learn about evolution and extinction, and also form a hypothesis.

Learn how sensory information is processed by the somatic and autonomic nervous systems with this engaging science worksheet! 

Who will win the marble race in this two-page physical science worksheet?

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

Use this cool 2-page worksheet to make your own big dipper clock!

Learn more about two kinds of aquatic biomesÃfreshwater and saltwater biomesÃand how you can tell them apart.

Learn to identify and name the parts of a seed in this two-page science worksheet and quiz!

Explore the science behind how hurricanes are forecasted with this two-page environmental science worksheet!

Use this two-circle Venn diagram template in instruction, or as a guide for student work.

Fly high with The Wright Brothers, two siblings who soared to the forefront of history with their design for the first modern airplane.

Geared toward middle school learners, this worksheet helps students explore the relationship between a wave’s energy, amplitude, and frequency.

Print out a set of weather-themed postcards to give your child practice identifying seasons. These weather postcards also allow kids to practice writing skills.

These cute critters have gotten their tails all mixed up! Have your little one help put them all back in place.

Investigate the practice of deforestation in a real-world context with this two-page environmental science worksheet.

Invite students to explore the cause and effect of earthquakes with this two-page environmental science worksheet!

Is your child baffled by the scientific method? Dr. McSquare is here to help! Learn the steps by helping the doctor organize his lab reports.

Explore how, when, and why lunar eclipses occur with this two-page earth science worksheet!

With two simple yet fun experiments, this worksheet covers the interesting topic of cohesion and adhesion of water.

With great colorful images this worksheet, is fun for young learners. Kids will match up each of the five senses with a corresponding picture.

Help students deepen their understanding of matter with this chemisty worksheet!

Try this worksheet diagramming a snail anatomy. It takes a snail over two minutes to travel 12 inches, but your 5th grader can finish this worksheet in no time.