Changing Matter

6. Structural engineers ___________ things you use every day.
7. You can measure temperature with a ____________________.
10. A _____________ is something about an object you can observe with your senses.
11. Some changes made by heating and cooling can be _____________________. They can change back to the way they are.
12. Matter doesn't always change in the ________ same way.
15. A thermometer is a tool that ______________ how hot or cold it is.
16. Engineers _____________ a material's _____________________ to make sure they make things that serves its purpose.
17. Sometimes you can change the ____________ of matter.

1. When you make a change in matter, the object you changed can look different from its ________________ shape or form.
2. There is a __________________ you have to follow in order to correctly put something together.
3. In the winter, the liquid water ____________ because it is cold.
4. _________ is anything that takes up space.
5. When water freezes, it measures at zero ____________ Celcius.
8. Engineers pay attention to ______________ used to build things.
9. How hot or how cold, or __________________, is a property of matter.
13. _____________ means to put together.
14. Sometimes you can _______ the change you made. Sometimes you cannot.