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Grades 6, 7 and 8 - Science - Middle School - Mixtures
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Mixtures involve putting two or more substances together. 
 

Grades 6, 7 and 8 - Science - Middle School - Mixtures
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20 Questions

1. Air is a mixture of different gasses. Which list consists of gasses present in the air?
2. You are trying to clean some muddy water by using a filter. Which of these materials would you not use in building a home made filter?
3. A tea bag is made from tea leaves and an especially porous paper. Besides being a container for the tea leaves, what is the purpose of the paper?
4. If you evaporated sea water, leaving the salt behind, how could you collect the water?
5. Which of the following is NOT a mixture?
6. Which of the following is an example of a mixture?
7. What method would be used to separate a solution of sugar and water?
8. You are trying to clean some muddy water by using a filter. Which of these materials would you not use in building a home made filter?
9. The method used to separate colored dyes in ink is .......
10. The name given to the liquid which dissolves the solid in a solution is .......
11. What do we call a material that will not dissolve in water or another liquid?
12. A tea bag is made from tea leaves and an especially porous paper. Besides being a container for the tea leaves, what is the purpose of the paper?
13. How would you separate a mixture of iron filings and sulfur?
14. If you evaporated sea water, leaving the salt behind, how could you collect the water?
15. Which of these substances is a mixture?
16. What might you use to separate a mixture of sand and iron filings?
17. The method used to separate colored dyes in ink is .......
18. In a solution, the hotter the solvent .......
19. Which of the following would dissolve in water?
20. How would you separate a mixture of iron filings and sulfur?

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