TEKS

7.6 Matter and energy. The student knows that matter has physical and chemical properties and can undergo physical and chemical change. The student is expected to:

• 7.6A identify that organic compounds contain carbon and other elements such as hydrogen, oxygen, phosphorus, nitrogen or sulfur

7.5 Matter and Energy. The student knows that interactions occur between matter and energy. The student is expected to:

• 7.5A recognize that radiant energy from the Sun is transformed into chemical energy through the process of photosynthesis

• 7.5B demonstrate and explain the cycling of matter within living systems such as in the decay of biomass in a compost bin

• 7.5C diagram the flow of energy through living systems, including food chains, food webs, and energy pyramid

Essential Questions

• How is energy from the sun transformed into chemical energy through the process of photosynthesis?

• How does energy flow through living systems?

• How does matter cycle within living systems?

• How does the flow of energy contrast to the cycling of matter in living systems?

• What elements do organic compounds contain?