Across
- 2. This invention help people to see things in the universe.
- 4. It is a thing that inventors invent.
- 6. It helps to clean rainwater and drink by people.
- 8. It helps to clean easier.
- 9. It helps people to move using their house easily.
- 10. The action to make an invention.
Down
- 1. People who invent new things.
- 3. It uses the sun to heat the house.
- 5. He invented the light bulb.
- 7. This invention help people to talk easily even far away.