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. 

Understand the ecological importance of insects, and why they are important to humans.

Understand the behaviors, characteristics, and classification of insects.

See how insects get food, and what they eat to survive.

Learn about the different chemical and biological insect control methods.

Understand the behaviors, characteristics, and classification of arthropods.

Explore the behaviors, characteristics, and diversity of arthropods.

Understand the biological diversity and classification of invertebrates.

This customizable digital textbook covers topics related to third-grade science. It is Next Generation Science Standards (NGSS) aligned.