What began as a day to celebrate the birthday of George Washington, the first president of the United States of America, has grown to include every other president to serve as leader of the… More →
Crabtree Classics
3749 records found. Displaying 2377 - 2388.
Pressing Down explores the benefits and uses of the lever. RobbO and RobbEE learn how a lever can be formed in three different ways to do different kinds of work - lift and lower, separate, and open. More →
Most people have heard of the massive collection of debris in the Pacific Ocean or the damaging effects of oil spills on ocean ecosystems. But there are many other ways the world's oceans are More →
A princess, bored with her princess duties and fancy clothes, longs for freedom and adventure. Actually, she would prefer to be a frog! But then she falls in love… More →
This interesting art book inspires children to unleash their creativity as they learn how to use a variety of tools, media, and processes to create original works in printmaking. Mini-bio… More →
Ella is trying to decide who to invite over to play. This fun book helps teach children the concept of probability. Simple activities performed by Ella help children understand how likely it… More →
This fascinating series explains why you wouldn't want a world without engineers, scientists, and inventors. If we always did things the same way, we would never solve new problems, design… More →
On July 23, 1969, Neil Armstrong and Edwin "Buzz" Aldrin stepped from their spacecraft onto the alien soil of the Moon - Earth's sister world. Using archival images and explanatory text, this More →
Earth's surface is constantly being changed by heat, water, ice, salt, plants, and animals. Sometimes the changes are destructive to human activities such as farming and the building of… More →
These important books look at our interaction with the planet and the global impact of our actions on the environment today and in the future. Key environmental issues, such as climate… More →
In its Sustainable Development Goals for 2030, the United Nations states a healthy Earth requires healthy oceans - and life below water must be protected. Protecting the Oceans is a timely… More →
The kingdom Protista includes organisms, most of them microscopic, which have both animal and plant features. With such a diversity of life forms in this grouping, the features of this… More →
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