Welcome back to the ETLV class!

2. a short, solid piece of metal that moves up and down inside a cylinder in an engine
6. a strong metal that is a mixture of iron and carbon
8. the standard unit for measuring pressure
11. the process of burning
13. a low weight but highly resistant material (2 words)
15. panel a device that changes energy from the sun into electricity (2 words)
16. a hard, black substance that is dug from mines and can be burned to produce heat or power
18. a device that spins at high speed and causes a ship to move
19. a tall, vertical post, used as a support in buildings
22. a machine that uses the energy from liquid fuel or steam to produce movement
23. a device like a box that moves up and down, carrying people or goods from one floor of a building to another

1. the structures below the surface of the ground that support a building
3. a very tall modern building, usually in a city
4. an illness, injury, or condition that makes it difficult for someone to do some things that other people do
5. a long, thick piece of material used to support weight in a building
7. the vehicle used by people who are unable to walk
9. a metal that is made by mixing two or more metals
10. a force that acts in a way that often changes the shape of an object
11. a deterioration of metal
12. a curved device that a person who has lost part of a leg can attach to their body in order to be able to walk or run
14. a device attached to a computer, that can make a solid object from a digital model
17. a unit used to measure force
20. turbine a tall structure with blades that are blown around by the wind and produce power to make electricity (2 words)
21. an accident in which oil has come out of a ship and caused pollution (2 words)