NGSS
MS-LS1-6
3 lessons teach this standard. Every lesson is interactive, and every one prints as a worksheet with a separate answer key.
Grade 7 Science · Chapter 3 · Lesson 2
Photosynthesis as a Chemical Change
Rearranging atoms, and storing energy in the arrangement.
Grade 7 Science · Chapter 3 · Lesson 4
Not opposites, and both at once.