Across
- 1. Red blood cells are _____________ and flexible (page 42)
- 4. ______________ molds grew in Dallas in the photograph on page 18
- 5. What instrument makes small objects look larger? (page 28)
- 6. All living things have ______________ organization (page 19)
- 8. All living things need ____________ to survive (page 24)
- 9. Organisms need a source of ______________ to live (page 23)
Down
- 2. What is the name for the "brain" of a cell? (page 36)
- 3. All cells have cell _____________ (photo, page 35)
- 6. While a plant cell is shaped like a square, an animal cell is shaped like a _____________. (page 39)
- 7. Over time, a tiny ______________ develops into a giant oak tree (page 20)