Why do some objects make loud sounds when dropped, while others make quiet sounds?

The Mockingbird is Tennesse's state bird: it can mimic the sounds of other birds, and even the sounds of insects.

The Mockingbird is Texas' state bird: it can mimic the sounds of other birds, and even the sounds of insects.

The Mockingbird is Mississippi's state bird: it can mimic the sounds of other birds, and even the sounds of insects.

Challenge your first grader to put these plant life cycle stages in the correct order with this fun beginning biology sheet.

Listen to the sounds of everyday life in this science worksheet!

Ever wonder why sounds change as they move away from us? Learn all about the Doppler effect with this physics worksheet.

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 parasaurolophus, one of the most musically inclined dinosaurs with this dot-to-dot coloring page.

Pigs, cows, and ducks, oh my! The clues in this animal crossword puzzle worksheet will help you remember what animals there are on a farm.

Read about a little-talked-about bird that inhabits the wetlands of Yellowstone National Park, the sandhill crane.

Did you know that sound is actually caused by movement? Vibrations of particles create the sound that we hear.

The mockingbird is internationally known, but it's also the most treasured bird in the state of Florida. Color in Florida's state bird in this coloring page.

Listen closely! Do you hear anything? Identify examples of sound energy in this kindergarten and first-grade worksheet!

Aspiring astronomers, get ready for a stellar coloring page all about the moon! Your child can read some fun facts as he colors.

Can your child tell what will be attracted by a magnet? Challenge him to think about why magnets attract certain objects.

Looking for a worksheet to help your kid with his knowledge of human biology? This printable will help him with the digestive system.

Facts about ostrich include that they are the largest birds in the world and that they can't fly, but that's not all. Learn all about this amazing bird!

This worksheet will help your child identify the different parts of the body by asking them to fill in the blanks on the diagram.

Searching for a worksheet that will give your kid help with his science skills? This printable will challenge his knowledge of the metric system.

Help kindergarteners and first graders learn the parts of a plant with this coloring worksheet! 

Children will enjoy this appealing worksheet that invites them to consider which of the items shown are necessary to plant life.

Use a seesaw to see what happens when opposing forces become balanced or unbalanced!

Right now the Earth is spinning, whether we can feel it or not. Do you know why? Uncover the science behind our spinning planet with this informative worksheet.