A water strider can skate along the top of a pond because:
specific heat
surface tension
adhesion
capillary action
3. Multiple Choice
30 seconds
1 pt
What word describes when water is attracted to other substances?
cohesion
adhesion
capillary action
surface tension
4. Multiple Choice
30 seconds
1 pt
Why is water considered a polar molecule?
The oxygen end is slightly negative and the hydrogen end is slightly positive
The hydrogen end is slightly negative and the oxygen end is slightly positive
The hydrogen and oxygen are covalently bonded
Because it is hydrophobic
5. Multiple Choice
20 seconds
1 pt
Why does water move from the roots to the leaves of plants?
Water is pushed by solutes
Capillary action
pulls the water molecules up
Water is pulled by gravity
Water’s cohesion causes it to “pull” towards the leaves
6. Multiple Choice
30 seconds
1 pt
Attractions between water molecules are called
Covalent bonds
Ionic bonds
Polar bonds
Hydrogen bonds
7. Multiple Choice
20 seconds
1 pt
The attraction that causes water and other liquids to form drops on thin films is called ________________. This is also water’s ability to be attraction to other water molecules.
adhesion
capillary action
cohesion
surface tension
8. Multiple Choice
45 seconds
1 pt
Which is NOT a unique property of water?
Frozen water floats on liquid water.
Water covers most of the Earth’s surface and retains a large amount of heat.
Water molecules stick to each other through hydrogen bonds.
Water cools very rapidly.
9. Multiple Choice
30 seconds
1 pt
What property of water helps to moderate earth's temperature?
adhesion
chohesion
Specific heat capacity
Latent heat of vaporization
10. Multiple Choice
30 seconds
1 pt
The reason the water balloon did NOT pop while held over a flame is water's _________.
Less dense than air.
Hydrogen bonds between water molecules.
Polarity.
High specific heat capacity.
11. Multiple Choice
30 seconds
1 pt
What word describes when a water sticks to another substance?
Cohesion
Adhesion
Solution
Transpiration
12. Multiple Choice
30 seconds
1 pt
When you mix salad oil and water they immediately separate because:
Water does not dissolve oil
Hydrogen bonds form between water molecules
Salad oil is too dense
It depends on what kind of oil you are using
13. Multiple Choice
30 seconds
1 pt
Why does ice float?
As water freezes, it expands and its density decreases.
As water freezes, it takes up more hydrogen from the atmosphere, causing it to have a greater buoyancy.
As water freezes, air becomes trapped between the hydrogen bonds of water molecules.
As water freezes, it takes up more oxygen from the atmosphere, causing it to have a greater buoyancy.
14. Multiple Choice
30 seconds
1 pt
If you put a fine mesh screen under a bottle of water the water will not pour out. Why?
The mesh is too small for water to flow through
The square shapes of the mesh do not fit water drops.
The surface tension of the water holds the water molecules together.
It's magic. Sorcery!
15. Multiple Choice
45 seconds
1 pt
Water is polar because...
It has a slight
negative charge near its oxygen atom and a slight positive charge near
its hydrogen atoms.
The molecule has two poles, one that is colder than the other.
It is a favorite drink for polar bears.
The water molecule is neutral.
16. Multiple Choice
30 seconds
1 pt
Water can move UP paper, against gravity, due to ______________.
capilary action
capital action
cohesion action
coronary action
17. Multiple Choice
30 seconds
1 pt
Water is the only substance on Earth that naturally exists in _______________.
Solid and liquid states
All three states
Gaseous form
Liquid and gas states
18. Multiple Choice
30 seconds
1 pt
How are adhesion and cohesion similar?
Both are water molecules
Both need to bond
Both have properties
Both are about sticking to something
19. Multiple Choice
30 seconds
1 pt
Ice freezes at the top of a pond and protects the water life underneath. What property of water is KEY in this situation?