Across
- 3. ___________ dioxide is a greenhouse gas.
- 4. LED ___________ are more efficient than incandescent.
- 5. Measured by an ammeter and measured in amps.
- 7. ____________ reactions requires fuel and oxygen.
Down
- 1. There are eight __________ in our solar system.
- 2. Anything that has mass and volume.
- 5. Organisms that do not eat plants.
- 6. COVID attacks the ____________ system.