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* 1. My name is...

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* 3. In a water molecule, how is the charge distributed?

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* 4. What percentage of the world’s population doesn’t have access to clean water?

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* 5. The human body is approximately what percentage water?

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* 6. What property of water allows it to bead up on waxy surfaces like car hoods and wax paper?

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* 7. Which is NOT a use of water in the human body?

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* 8. What percent of the earth’s water is in the oceans?

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* 9. What percent of freshwater on the earth is used for irrigation?

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* 10. How many people lack access to healthy, clean water?

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* 11. When we compare the amount of wetlands on the Earth in 1900 to what exists now, what percentage still exist as wetlands?

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* 12. What is the density of water?

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* 13. What does adhesive mean?

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* 14. In an aqueous solution, water is

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* 15. In a solution, the substance present in the greater amount is considered the

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* 16. Which of the following substances is soluble in water?

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* 17. Which of the following substances is NOT soluble in water?

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* 18. Why is water called the universal solvent?

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* 19. If Virginia prepares a solution with 40.0 grams of sugar in 100 grams of water, how much sugar will she get back if she filters it?

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* 20. If Jerry prepares a solution with 40.0 grams of sugar in 160 grams of water, and he evaporates all the water, how much sugar will he get back?

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* 21. What is the percentage of hydrogen in a water molecule?

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* 22. How many grams of oxygen would be present in a 100 gram sample of water?

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* 23. Which of the following is an example of a chemical reaction of water?

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* 24. Which of the following changes does not require energy?

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* 25. A puddle of water and a glass of water both at the same temperature and volume are left to evaporate. Which evaporates sooner and why?

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* 26. Marilyn saves 30% of the money she earns each month. If she earns $250 each month, how much does she save?

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* 27. There are 250 chairs in the gym. If 150 chairs are full, what percentage are full?

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* 28. Last year the cost of a football ticket was $25. This year the cost is $28. What is the percentage increase in price from last year to this year?

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* 29. Last year the football team won 15 games. This year the team won 20% fewer games. How many games did the team win this year?

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Use this image to answer the following question.

Use this image to answer the following question.

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* 30. What percentage of the images are sleds?

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* 31. Twenty-seven percent of the tomatoes in a garden are red. What fraction shows this percent?

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* 32. If the decimal 0.047 is written as a percent it would be

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