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Across
- 1. The distance between one wave peak and the next
- 3. Vibrations that travel through the air and are heard by ears
- 6. The band of colors formed when white light is split
- 8. A thread-like structure in cells that carries genetic information
Down
- 2. A community of living things and their environment working together
- 4. A curved piece of glass that bends light
- 5. A pattern of energy moving through space or matter
- 7. A glass container used in science experiments