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unit 2 chap 1 test
study guide
| Question | Answer |
|---|---|
| property | what you can observe or measure about something that helps you identify or describe it. |
| substance | matter that is made of one kind of atom and one kind of molecules. |
| mixture | matter that is made up of more than one substance. |
| observe | to use any of the five sense to gather information about something . |
| matter | the stuff that is all around us that thing are made of. |
| atom | a tiny piece of matter that is to small to be seen. |
| molecules | a group of atom joined in a particular way. |
| model | something that scientist make to answer questions in the real world. |
| attract | to pull an object, even without touching it. |
| evidence | information that supports an answer to a question. |
| inference | something that you figure out based on observation that you all ready know |