Are spiders related to crabs? Study the order of arthropods with a reading selection about animal diversity. It provides details about each class within the order, as well as vivid pictures and explanatory charts. 

Jump into an exploration of marine ecosystems with the first lesson in this four-part series. After first learning about crustaceans, mollusks, and other forms of sea life, young marine biologists view a PowerPoint presentation that...

Comparative anatomy prevails in the lesson exploring diversity among invertebrates. Biologists examine physical characteristics of an earthworm from phylum annelida and a meal worm from phylum insecta. They also inspect a cricket and a...

Students dissect organisms and take photographs to create a PowerPoint dissection library. In this anatomy lesson, students dissect organisms that interest them and photograph the process while identifying structures. They create a...

In this word recognition worksheet, students trace the word "crab," write the word independently, and color the picture of the crab.

Tenth graders watch a PowerPoint presentation to review the scientific process. They examine pill bugs before designing an experiment to find new discoveries about these Crustaceans. They complete ten lessons in this unit.

Students identify some of the different species of crabs and tell how they adapt themselves to their environment. They discuss the evolution and stages of development of the crabs. They identify the Phylum Arthropoda and the Class...

Do you know how Crustaceans differ from other animals that belong to the Arthropod family? Find the answer to this question along with other interesting facts about this marine animal.

Explore the microscopic organisms that live in the freshwater ponds with this video collection. These video clips feature unicellular organisms, from under the microscope, showing off their daily activities. Collection includes videos of...