Find out all about the different parts of the eyes and how they work together to make vision possible.

Introduce your child to the inclined plane, one of the six simple machines that helps to make work easier for us!

Did you know that the screw is actually one of the six simple machines? This handy machine helps to make work easier!

What is energy? Energy is the ability to do work! Use this colorful worksheet to teach your little scientist the basics of energy.

Young inventors will have a blast with this worksheet on compound machines! Use three of the six machines together to make work easier.

Explore the science of the sun with this make-your-own sundial activity! Just do a little bit of cutting and coloring, and let the sun do the rest of the work.

Guglielmo Marconi was a man who made waves in radio and sound. Learn about his life and work, then answer a short essay question in this science worksheet.

Meet the master of compound machines: Rube Goldberg! His wacky contraptions put a whole new spin on the use of simple machines.

Help your child learn about the nervous system and the digestive system with this fun worksheet, which will challenge his knowledge of physiology.

Fossils have a lot to teach us about life on earth, but they can also be used to help teach kids the scientific method.

Crank out a better understanding of simple machines with this worksheet all about the wheel and axle!

Who knew coloring could be so educational? Learn the formal names of a spider and calla lily with this coloring page.

This worksheet featuring food and natural resources touches on the subject of food chains.

The earth is always changing and moving.Learn all about weathering and erosion with this worksheet.

Does your second grader love farm animals? This easy writing exercise will help your child be more observant about tracks left by some familiar animals.

Looking for a worksheet to challenge your child's knowledge of science? This printable asks him to identify a solid, liquid and gas.

In this North American animal tracks worksheet, students hone their observation skills by matching tracks to animals.

Looking for a fun way to supplement your child's science learning? Try out a life science crossword puzzle! This one's all about ecosystems.

These STEM design challenge cards ask learners to build something new for a specific reason or purpose and are a great way to foster creative thinking.

Learning about the functions of plant parts doesn’t have to be puzzling! Review the parts of a plant with this crossword for first and second graders.

Try to find natural resources in this camping-themed worksheet for second and third graders!

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.

Is a feather liquid, soft, spotted, or heavy? Practice describing everyday objects, or matter, with this second-grade science worksheet!

Dive into the electrifying concept of electrical energy in this colorful worksheet!