Science and technology

2. the base or starting point of something important
6. a device that is connected to the internet and can answer questions or play music when you speak to it
9. a person who creates something new for the first time
10. a small, useful tool or electronic device
11. a new idea, method, or product
13. to give your time or energy to something important
14. an object that moves around a planet, often used for communication or watching Earth
15. something that you wear your wrist that can connect to your phone and show messages or health information
16. a type of energy that powers lights, machines, and devices

1. to change something into a different form or use
3. no longer used because something newer or better exists
4. something that takes the place of another thing
5. watching someone or something carefully, often for safety or security
7. using resources in a way that does not harm the environment for the future
8. a small flying machine without a pilot, controlled from the ground or by a computer
12. help or advice that shows you what to do