Science and technology

2. no longer used because something newer or better exists
6. to give your time or energy to something important
7. using resources in a way that does not harm the environment for the future
11. speaker a device that is connected to the internet and can answer questions or play music when you speak to it
13. to change something into a different form or use
14. help or advice that shows you what to do
15. an object that moves around a planet, often used for communication or watching Earth
16. a small flying machine without a pilot, controlled from the ground or by a computer

1. something that takes the place of another thing
3. a new idea, method, or product
4. a type of energy that powers lights, machines, and devices
5. watching someone or something carefully, often for safety or security
8. something that you wear your wrist that can connect to your phone and show messages or health information
9. a person who creates something new for the first time
10. a small, useful tool or electronic device
12. the base or starting point of something important