Biologists know of more than 2,300 living species of amphibians. Learn more about the four orders of amphibians with an interesting presentation. It explains the similarities and differences between the thousands of species of...

Out of all animals, elephants alone lack the ability to jump. Scholars learn all about animals using a presentation full of fun examples. It describes different types of animals, the biological similarities and differences between...

Synonym dominoes, anyone? As part of the activities designed for kids who have mastered the basic concepts in the Houghton Mifflin Harcourt thematic unit That's Amazing! kids are offered a variety of activities that include...