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WorksheetsScience Quiz Study Guide
Total questions: 14
Worksheet time: 7mins
Why are salt ponds red/pink?
Because of humans' dye
Because of animals and plants
Because of halobacteria
Because of the sun
What method do farmers use to salt farm?
They use a complex filtration process in a factory
Evaporation seperates the salt from the water
The halobacteria eat the water, leaving only the salt
None of the above
What is the water cycle?
Evaporation --> Precipitation --> Condensation
Precipitation -->
Condensation -->
Evaporation
Condensation -->
Evaporation -->
Precipitation
Evaporation --> Condensation -->
Precipitation
Water is a polar molecule
True
False
What is sleet?
Precipitation in the form of raindrops
Condensation in the form of snow
Precipitation in the form of frozen raindrops
Precipitation in the form of solid ice
How much of our fresh water is ice?
70%
2.6%
0.1%
72.5%
From which two atoms is salt made out of?
Na+ and Cl-
H+ and O-
H20 and Ca-
None of the above
Salt is not ionic
True
False
What is the definition of an ion?
A positive atom
An atom(s) that has a positive/negative charge
An element that is neutral
A negative atom
What is the definition of a solvent?
A group of atoms that can dissolve salt
A substance that is dissolved
Water
A substance that dissolves another substance
What is the definition of a solute?
A substance that is dissolved in another substance
A substance that has no salt
A substance that is being dissolved in a glass of water
A substance that doesn't dissolve an ionic substance
All ionic substances dissolve in water.
True
False
How is solubility usually measured?
The number of grams of a substance that dissolves in 90 mL of water at a certain temperature
The number of grams of salt that dissolves in 100 mL of water at a certain temperature
The number of grams of a substance that dissolves in 100 mL of water at a 100 degrees
The number of grams of a substance that dissolves in 100 mL of water at a certain temperature
What is the definition of a solution?
A type of mixture where a solute is dissolved in a solvent
A mixture
A type of mixture that is made of two solvents
A type of solute that contains salt
