Get to know one of the most unique and colorful monkeys, the red-shanked douc langur. Read about why they are an endangered species with this info-sheet.

What keeps trees, big and small, from falling over? Their roots! Take a peek with this amazing tree maze!

Find out how to help the Earth with our Earth Day fill-in-the-blank. With this awesome Earth Day activity, you and your kid can save the planet!

In this worksheet, children discover what plastic is, how it is manufactured, as well as its history and about attempts to reduce plastic waste.

Students read all about seaweed and answer standards-based comprehension questions in this four-page reading comprehension worksheet.

Embrace Earth Day with this classic number puzzle for third through fifth graders!

Celebrate Earth Day with this fun word puzzle for third, fourth, and fifth graders!

This worksheet is a fun, easy way to help children connect counting to basic addition skills. How many trees do you see?