Grade 3

The moon is the largest object in the night sky. Young readers will learn about the moon’s phases, surface, and how humans have explored our closest space neighbor. More →

Get ready to enter the wet and wild world of amphibiana! Here, children will discover some of the slimiest creatures that ever lived on land and in water. From jumping frogs that leap more… More →

The sun radiates light, heat, and energy at the center of the solar system. Eager students will explore how the sun works and its relationship to Earth and the other planets. More →

How do katydids protect themselves from predators like birds, spiders, and snakes? These insects have wings that look just like leaves on a tree, helping them disappear into their… More →

Many people believe that a person can get warts just by touching a toad. While this enduring myth is not true, a toad's warts are harmful to many of its predators. The warts produce a poison, More →

Roller coasters offer riders high speeds and thrilling drops! The fastest roller coasters can reach speeds over 100 miles per hour! Eager students will plunge into learning about how roller… More →

On May 12, 2008, a strong earthquake rocked Beichuan, China, destroying buildings and entire neighborhoods. When Beichuan's high school collapsed, 16-year-old Li Anning and her friends were… More →

Sea snakes are skilled underwater breathers able to spit out stored saltwater with their tongues. Kids will learn what these ocean creatures look like, how they swim and thrive in water, and… More →

In 2009, Larry Fitzgerald established himself as one of the NFL's best players when he led the Arizona Cardinals to their first-ever Super Bowl appearance. The hard work and passion Larry… More →

Green tree frogs are experts at fooling predators on the hunt for a tasty meal. These frogs have bright green skin that helps them hide among leaves and grass. Hungry animals like snakes and… More →

Pluto is a dwarf planet with three known moons—Hydra, Nix, and Charon. Children will explore Pluto’s physical features, its position in the solar system, and why it is no longer considered a planet. More →

Male sea horses have a unique role in the sea horse life cycle. They carry the eggs and give birth to as many as 200 babies at one time. Young children can track a sea horse’s life cycle from More →