Across
- 5. to start using a computer system, for example by typing a particular word
- 6. a small computer that you can carry with you
- 8. a machine, tool, or system that someone has made, designed, or thought of for the first time
- 11. easy to carry or move
- 12. a plant or animal group whose members all have similar general features and are able to produce young plants or animals together
- 14. a piece of computer equipment with keys on it, used for putting information into a computer
- 16. a star and the planets that go round it, especially the Sun and the group of planets that includes the Earth
- 18. a measurement of how heavy a person or thing is
- 22. the detailed study of something in order to discover new facts, especially in a university or scientific institution
- 24. the science that deals with heat, light, and other forms of energy and how they affect objects
- 25. the distance from one side of something to the other
Down
- 1. to make a copy of information on your computer
- 2. to connect a piece of equipment to an electricity supply or to another piece of equipment
- 3. an animal or plant, or a part of one, that lived many thousands of years ago and is preserved in rock or as a piece of rock
- 4. a substance that can flow, has no fixed shape, and is not a solid or a gas
- 7. to get information, especially from a computer
- 9. a sudden shaking movement of the ground
- 10. to find the exact size, amount, speed etc of something using a special tool or special equipment
- 13. the process of learning something that was not known before, or of finding someone or something that was missing or hidden
- 15. a discovery or achievement that comes after a lot of hard work
- 17. to make a piece of equipment ready for use
- 19. a substance used in chemistry or produced by a process involving chemistry
- 20. the hard solid substance that forms part of the Earth’s surface
- 21. firm and hard
- 23. to move heat or electricity through something