Science Unit: Ecosystems (6 weeks)

TEKS and Objectives for Unit:

6.5 A - Identify and describe a system that results from the combination of two or more systems.

6.5 B - Describe how the properties of a system are different from the properties of its parts.

6.8 B - Explain and illustrate the interactions between matter and energy in the water cycle and the decay of biomass such as in a compost bin.

6.8 C - Describe energy flow in living systems including food chains and food webs.

6.12 A - Identify components of an ecosystem to which organisms may respond.

6.12 B - Identify responses in organisms to external stimuli such as the presence or absence of heat or light.

6.12 C - Identify responses in organisms to internal stimuli such as hunger or thirst.