3rd and 4th Grade Life Science Resources : Page 7

Did you know that one of the main ingredients of a perfect pearl is dust? Learn all about the bizarre process behind every pearl with this science worksheet.

Grandma and grandpa didn't always have gray hair. Find out about what gives our hair color and what makes our hair lose that color as we get older.

Learn about Yellowstone National Park's peregrine falcons, which survived heavy pesticide use in the 1960s.

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

Help your child read this page about the Sumatran rhinoceros, where they can color an illustration as they learn about why this animal is endangered.

Lots of people like turtles, but how much do you really know about them? Get to know one of many types of turtles with this informational worksheet.

Get to know the residents of the reef with this coral reef-themed crossword, perfect for expanding life science knowledge and working on vocabulary, too!

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.

Which animals can live happily alongside humans? With this word search, match up game, fun facts, your child will learn more about urban animal habitats.

Ever wonder why zebras have so many stripes? Find out with this fun worksheet all about the zebra!

Learn about spider tortoises, one of the world's tiniest tortoise species, with this handy worksheet. Can't go to the zoo? We bring the zoo to you!

This is the story of our solar system. Learn about the life of Nicolaus Copurnicas and his great discovery. Learn more by answering the question at the bottom.

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

Help your child understand why it's so important to take care of the environment with this info-sheet about an endangered species: the spectacled bear.

Learn about Yellowstone Park's lynx, the cats that put your average house cat to shame.

Are you afraid of spiders? Don't scream, this fun worksheet is jam-packed with interesting facts and activities, all about black widow spiders!

Read about the mule deer, the most abundant deer in Yellowstone National Park.

Don't believe a bird could catch a rattlesnake? Believe it. The greater roadrunner lives up to its name by running up to 20 miles per hour and hunting snakes.

These printable Valentine's Day cards are perfect for a kid who's in love with animals and science!

Help your child practice his science skills with this science worksheet, which will challenge his knowledge of reptiles and ask him to solve a puzzle!

There aren't many blue animals out there, but here's one that will be fun to color: the blue dart frog. Its bright color warns predators that it is poisonous.

Use the clues in this crossword puzzle to fill in the blanks with different types of snake names. Learn interesting facts about snakes as you go!

Get the facts on the beautiful elk, an American treasure and a symbol of Yellowstone National Park.