Across
- 3. a device that causes suction in order to remove dirt from floors
- 5. the accessory you plug into your phone or laptop when the battery power is low.
- 7. device for opening and closing electrical circuits under normal
- 8. an electrical machine that converts electrical energy into mechanical energy.
Down
- 1. first one to use vacuum as a method for cleaning carpets
- 2. something that renew the indoor air replacing stale air with fresh air or increase air circulation for ventilation or cooling
- 4. the invisible mixture of gases that surrounds Earth
- 6. a flow of electrical power or charge.