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Unit tow chaperter 2

QuestionAnswer
1. Why did the food coloring separate into diffent dyes?
2. How are diffente kinds of molecules diffvent and smler? Diffrent molecules can have diffrent sizezs, whagt, shape, and attraion stragth.
3. All molecules of one substance are the ? same
4. Different molecules have different? properties
5. All matter is made up of ? Atoms
6. What are the smallest pieces of matter? Atoms
7. Molecules are highly attracted to each other and many other kinds of molecules? Water
8. What is a technique used to separate mixtures into their component substances ? Chromatography
9. What you can observe or measure about something that helps you identify or describe it? Property
10. Matter that is made of only one kind of atom or molecule? Substance
11. Matter that is made of more than one substance? Mixture
12. To use any of the five senses to gather information about something? Observe
13. The stuff that things are made of ? Matter
14. A tine piece of matter that is to small to be seen ? Atom
15. A group of atom joined together in a particular way? Molecule
16. something scientists make to answer a question about the real world? model
17. To pull an object, even without touching it? Attract
18. Information that supports an answer to a question? Evidence
19. Something you figure out based on observations and what you already know.? Inference
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