CK-12 Foundation
Ck 12: Fourth Grade Science: Life Science: Habitat Destruction
Looks at ways plants and animals, including humans, can impact the environment in this learning module.
Houghton Mifflin Harcourt
Harcourt: School Publishers: Exploring Ecosystems
Compare and contrast three very different ecosystems - the Sonoran Desert in Arizona, the Florida Everglades, and the Arctic Coastal Plain in Alaska. Learn what makes each of them unique, and about the adaptations plants and animals had...
Alabama Learning Exchange
Alex: What Is Alive?
This lesson is the opening lesson for a unit of study entitled "Why Doesn't A Caterpillar Grow Up To Be An Oak Tree?" during which learners take a look at life cycles of plants and animals. This lesson will encourage students to explore...
Texas Instruments
Texas Instruments: Probing an Aquatic Ecosystem
In this activity, students' use a pH sensor and Temperature Sensor to measure and compare the pH and temperature of three aquariums over a period of several weeks. They will compare and understand how plants and animals affect the water...