The Food Web

Students continue to track population changes in their aquariums and add newts to the freshwater habitats. Students also investigate food chains and food webs, using models to illustrate the flow of energy from one organism to another. They also investigate fossils, comparing fossil replicas to the structures of modern organisms.

Student Resources

Learn by Reading

For additional content-area reading, check out the Houghton Mifflin Science eBook: Grade 3, Unit B, pages 60–61.