WATER QUESTIONS

"Set-B"

COMPANY:
DATE:	(format mm/dd/yyyy)
GROUP NAME:
CEO:

QUESTIONS FOR DOLLARS

"Parts per Million and Billion"

(True or False: $500)

1. When atrazine is found in groundwater, the amount of water compared to Atrazine in a 1 part per billion mixture is greater than the amount of water in a 1 part per million mixture.

True
False

(Multiple Choice: $1000)

2. Please pick the most correct method to mix a 20% salt solution by weight.

Place 10 grams of salt into 50 grams of water.
Place 10 grams of salt into 80 grams of water.
Mix 20 grams of salt with 100 grams of water.
Mix 10 grams of salt with 40 grams of water.

(Pick Most Correct: $2000)

3. Several chemicals are dissolved in our drinking water . Please select the best experimental design that proves the presence of dissolved chemicals in our water that doesn't use modern technology (atomic spectra, etc).

Pour the drinking water through standard filter paper. If nothing appears on the filter paper the water contains no dissolved chemicals.

Pour water into a jar containing universal pH indicator. If the water turns green it contains dissolved chemicals.

Pour the water into wide mouth container, such as a watch glass. Place the container in warm or sunlight location for a period of two days or until water has evaporated. If a residue is left behind the water contains dissolved chemicals.

None of the above are correct