Across
- 2. ...engineering
- 3. to connect a piece of electrical equipment to the main supply of electricity
- 6. an electronic device that is sent into space and moves around the earth or another planet. It is used for communicating by radio, television, etc. and for gathering information.
- 8. ...of petrol, money, time
- 9. an occasion when a vehicle or machine stops working
- 11. you do it, it`s a scientific test that is done in order to study what happens and to gain new knowledge
Down
- 1. the act of giving a person or an animal a substance in order to protect them against a disease
- 4. ...an injection
- 5. energy obtained from the light and heat from the sun, used to produce electricity
- 7. what you usually do with a button
- 10. they can destroy or prevent the growth of bacteria and cure infections