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100
Think of the penny lab. What is it called when water molecules at the surface tend to stick together due to the tightness of the water molecules pulling on each other. This is caused by cohesion tendencies.
Surface Tension
100
This is the tendency of molecules of the same kind to stick to one another.
Cohesion- means same molecules
100
The percentage of freshwater available for HUMAN USE?
1 PERCENT
100
What percent of water is in oceans?
97 percent
100
Where is an area where water could possibly become polluted?
Farming, Factory, Oil spills
*Ms. Hockett will accept other answers depending on accuracy
200
Adhesion
200
The gas form of water is called
Water Vapor
200
The breakdown and transporting of rocks through physical or chemical processes is called-
Weathering
200
A crack has formed in this rock. What type of weathering is this?
Physical
200
_____________ is the process that transports and carries/moves weathered material away to a new location. (Happens by water, wind, ice)
Erosion
300
What is cohesion?
Water molecules are attracted to other water molecules.
*Remember- this will form a larger water molecule.
300
Water is able to stick to glass due to what property?
Adhesion
*Different substance than water
300
Describe Adhesion
Water's ability to stick to different substances
300
Water is able to dissolve many substances (think about our salt, sugar, and sand lab) it is known as the universal______
Solvent
300
The sand feels really hot, but the water feels really cool. The overall climate is mild. What is this describing?
Specific Heat of water/difference in temperatures
400
What word is used to describe when water is attracted or sticks to OTHER substances such as in the picture below
Adhesion
400
Which has a POSITIVE charge in the water molecule?
Hydrogen
400
Which has a NEGATIVE charge in the water molecule
Oxygen
400
Water has a _________ specific heat which means it takes a long time to heat up compared to land.
HIGH
400
Rust has formed on the nails. What type of weathering is this?
Chemical
500
What 2 ELEMENTS make up water?
Hydrogen and Oxygen.
500
A ____________________________ is a molecule in which opposite ends have opposite electric charges.
Polar molecules
500
How does water change into different states (solid, liquid, and gas)?
Due to adding or taking away thermal energy (heat)
500
What describes the combined force of attraction among water molecules with molecules of surrounding materials. This allows water to move AGAINST GRAVITY.
Capillary action
500
This bug appears to be "walking on water." What water property is this picture an example of?
Surface tension due to cohesion