Are cats trying to talk to us when they purr? Discover the meaning behind the purr in this worksheet that explores the three main types of cat purrs.

Collecting data is an important part of math and statistics. Practice gathering data using items around the house or classroom!

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.

Learn about the plants and animals that make deciduous forests their home, then complete the crossword puzzle.

How did salt ever get into the ocean? Find out how, and then try conducting your own salt water experiment.

Learn the ins and outs of one of the body's most important organs: the heart!

Fill in the blanks from the words listed in the word bank, then keep this sheet handy to prepare for tests and quizzes on life science and photosythesis.

Identify the appearance of the moon during its three main phases which include the New Moon, Quarter Moon, and Full Moon.

During the Gold Rush, people weren't sure if they found gold or something else, and these easy steps would help them be sure.

Explore the lush plant life of the tropical rainforest in this second- and third-grade worksheet!

Dip your toes into a marsh habitat in this second- and third-grade worksheet!

With this worksheet, kids read about the sport of biathlon and gain an appreciation for the skills involved by studying the math and physics behind them!

What's your favorite animal? Kids love answering that question, and with this animal research graphic organizer, they can write all about it.