In the 1950s, Californians invented skateboarding so they could surf on land. Roller skate wheels were attached to flat boards. Young readers will learn all about the sport of skateboarding,… More →
Grade 3
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Ticonderoga Cruisers use their advanced Aegis System to defend U.S. Navy warships. Young students will join these guided-missile cruisers in action and read about the advanced weapons and… More →
How does the tiger shark sneak up on its prey? These two-toned sharks have dark blue or gray backs that blend in with the dark waters near the ocean floor. They also have white or… More →
All frogs are amphibians, but only aquatic frogs live nearly all their lives in water. Some of these water frogs can do amazing things! For example, the Indian water frog can run along the… More →
Most ts are small-—between 2 and 5 inches. How do these little amphibians protect themselves from big, hungry enemies? Many ts, such as the red-spotted t, are covered in poisonous mucus. The… More →
While almost all frogs begin their lives in the water, adult frogs make their homes in many different places. Some types of frogs remain in the water, while other kinds stay mostly on firm… More →
Siberian Huskies are famous for pulling dogsleds and howling like wolves. With thick, layered hair, these arctic dogs are able to work and live in cold weather. Young learners will explore… More →
Bees begin their life cycle as eggs in honeycomb cells. Every day, a queen bee can lay as many as 2,000 eggs. Young readers will study a bee’s growth from egg to grub to pupa to adult. More →
Military helicopters perform a variety of missions for armed forces around the world. Some of these helicopters are capable of speeds approaching 200 miles per hour! Readers will discover the More →
In July 1995, a scorching heat wave blasted Chicago with temperatures as high as 106° F (41° C) for five days straight. Such extreme weather can cause heat stroke and even death in vulnerable More →
