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- 1. Multiple Choice
Water plays many roles on Earth - choose the roles that water plays on Earth - choose all that apply.
influences weather
shapes Earth's surface
supports life
supports human activities
- 2. Multiple Choice
In a model of the water molecule - what do the ears of the shape Mickey Mouse represent? What is the charge of this particle of the water molecule? Choose two.
Hydrogen atoms
Oxygen atoms
negative charge
positive charge
- 3. Multiple Choice
In a model of a water molecule - what does the face of the Mickey Mouse head represent? What is the charge of this particle of the water molecule? Choose two.
Hydrogen atom
Oxygen atom
negative charge
positive charge
- 4. Multiple Choice
True or false? - The three states of water that exist on Earth can not change into one another? (Choose two)
True
False
True or false? - The three states of water that exist on Earth can not change into one another?
True or false? - The three states of water that exist on Earth can change into one another?
- 5. Multiple Choice
What is the attractive force between two bodies of different substances that are in contact with each other? This is the property of a water molecule that allows it to stick to other substances.
adhesion
cohesion
specific heat
universal solvent
- 6. Multiple Choice
What is the force that holds molecules of a single substance together and its the property of water that allows one water molecule to stick to other water molecules?
cohesion
adhesion
specific heat
universal solvent
- 7. Multiple Choice
What are the unique properties of water? - choose all that apply.
cohesion
adhesion
specific heat
universal solvent
unique temperature
- 8. Multiple Choice
________________________ is the energy needed to heat a substance by a particular amount.
specific heat
specific temperature
Universal solvent
adhesion
- 9. Multiple Choice
A(n) _________________ is a liquid that dissolves substances or the substance in which the solute dissolves.
solvent
solute
mixture
molecule
- 10. Multiple Choice
The __________________ is a property of a system in which two points have opposite characteristics, such as charges (positive/negative) or magnetic poles.
polarity
opposites
cohesion
adhesion
- 11. Multiple Choice
This is one part of the Earth's system which contains all of the Earth's living things.
hydrosphere
biosphere
atmosphere
geosphere
- 12. Multiple Choice
This is one part of the Earth's system that contains all of Earth's water (on land and underground).
biosphere
geosphere
atmosphere
hydrosphere
- 13. Multiple Choice
This is one part of the Earth's system which consists of all the Earth's land and its features (mountains, plains, plateaus, etc.)
geosphere
biosphere
hydrosphere
atmosphere
- 14. Multiple Choice
This is one part of the Earth's system which contains all of the gases the surround the Earth.
atmosphere
geosphere
biosphere
hydrosphere
- 15. Multiple Choice
What percentage of water on Earth is salt water?
50%
75%
97%
70%
- 16. Multiple Choice
Which of the following statements about water correctly explains why most of Earth's surface is covered by oceans?
Life on Earth depends on water.
Water remains liquid at most temperatures on Earth.
Liquid water takes the shape of its container.
Water can exist on Earth's surface as a solid, liquid, or gas.
- 17. Multiple Choice
Water molecules are polar molecules. What is meant by the term polar molecule?
a molecule that has no charge on one end and either an overall negative or positive charge on the other end
a molecule that has an overall positive charge on one end, as well as an overall positive charge on the other end
a molecule that has an overall negative charge on one end, as well as an overall negative charge on the other end
a molecule that has an overall positive charge on one end and an overall negative charge on the other end
- 18. Multiple Choice
Which property of water allows it to form droplets when in liquid form?
adhesion
cohesion
specific heat
nature as a solvent
- 19. Multiple Choice
What percent of Earth's waters are fresh waters?
.5%
3%
7%
18%
- 20. Multiple Choice
A water molecule contains two hydrogen atoms and one oxygen atom. Which of the following statements about water molecules is true?
The oxygen atom is negatively charged and the hydrogen atoms are positively charged.
The oxygen atom is positively charged and the hydrogen atoms are negatively charged.
All of the atoms have a negative charge.
All of the atoms have a positive charge.
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