Find out how colors work with an intro to the color spectrum. Kids will investigate the seven colors of the rainbow and do a color wheel experiment.

This worksheet uses a paper bird to demonstrate center of gravity, and practices following directions and fine motor skills.

Here's a thorough, easy-to-understand breakdown of the color wheel that includes primary, secondary and tertiary colors.

Pull the lever on learning! Get to know one of the six simple machines with this worksheet about the lever.

Engage your little scientist with a fun word search, all about sinking and floating! He'll be learning a basic concept of physical science.

Is your fourth grader learning about electricity? This worksheet is all about circuits, tests her skills and reinforces the concept of how a circuit works!

Here is a brief introduction to The Great Pacific Garbage Patch for kids!

In this worksheet, kids learn about friction by answering questions about the amount of friction in different situations.

This science vocabulary activity is packed with basic science vocabulary words to help the youngest kids warm up to scientific concepts.

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.

For each item on this first grade science worksheet, kids match a piece of clothing with the thermometer showing a temperature for wearing the item of clothing.

Kids practice identifying solids for a lesson on the states of matter in this 1st grade physical science worksheet.

Kids practice identifying liquids for a lesson on the states of matter in this 1st grade physical science worksheet.