Water Molecules
On a cold morning dew (liquid water droplets) formed on the grass. Which process caused this?
a. deposition
b. sublimation
c. condensation
d. evaporation
c. condensation
Provides energy for the water cycle.
What is the sun?
The process by which liquid water turns into a gas.
What is evaporation?
The percentage of Earth's water that is saltwater?
What is 97 percent?
The property that holds molecules of different substances together (ex. - water to a flower leave)
What is adhesion?
Prairie Du Chien is the name of this body of rock that stores groundwater and allows it to flow.
What is an aquifer?
Anything that has a positive charge at one end and a negative charge at the other end.
What is polarity?
As water changes state, the water either absorbs or releases energy. Which of the examples below show a process that releases energy?
a. pond water freezing
b. ocean water evaporating
c. snow melting
a. pond water freezing
Most of Earth's freshwater is in the form of
What is ice/glacier/ice caps?
Bonus: what percent of Earth's freshwater is locked up in ice?
Water that fills the cracks and spaces in underground soil and rock layers is called
What is groundwater?
Why does ice float when placed in liquid water?
Because it's less dense OR its mass stays the same but it's volume increases OR the space between the water molecules expands.
Water that flows over land
What is runoff?
Which element in the water molecule is positively charged - hydrogen or oxygen?
What is hydrogen?
What percent of water on Earth is fresh water?
What is three (3) percent?
The process in the water cycle that forms clouds by changing water vapor into water droplets.
What is condensation?
The land area that is drained by a river system.
What is a watershed?
Rivers transport all kinds of matter. Matter can be dissolved or just carried away. What type of matter below would dissolve in the water?
a. sand
b. pebbles
c. salt
c. salt
If a warm wind blows over a glacier, it can heat quickly. When this happens, snow can change directly into water vapor. What is this process called?
a. melting
b. sublimation
c. evaporation
b. sublimation
The property of water that allows it to stick to other liquid water molecules and form droplets?
What is cohesion?
Which statement identifies how solid water is different from liquid water?
a. Only in solid water do the molecules lack space between them.
b. In solid water, the molecules are farther apart.
c. Only in solid water are the molecules not polar.
b. In solid water, the molecules are farther apart.
What statement below is NOT an example of how water reaches Earth's atmosphere?
a. condensation
b. sublimation
c. transpiration
a. condensation
As water changes state, the water either absorbs energy or releases energy. Which of the changes below are an example of water absorbing energy?
a. freezing
b. condensation
c. evaporation
c. evaporation
If ground water gets pumped out to provide drinking water, what must happen to the water table to remain unchanged?
a. The rate of discharge must be greater than the rate of recharge.
b. The rate of recharge must be greater than the rate of discharge.
b. The rate of recharge must be greater than the rate of discharge.
The measure of the amount of open spaces between the particles of rock and soil?
What is porosity?
The total amount of water on Earth surface is increasing, staying fairly constant, or decreasing?
It's staying fairly constant.
I have an example of a closed biosphere in the classroom. While I don't add water to the plant, it has enough water to grow. What best explains why the plant always has enough water?
a. The air cannot hold all of the water vapor
b. Energy from the sun cycles water through the soil, plant, and air.
c. The plants take up water and store it in their stems and leaves.
b. Energy from the sun cycles water through the soil, plant, and air.
What general water areas on Earth's surface experience the most evaporation and the most precipitation?
What are oceans?
Name Minnesota's three major watersheds.
1. Mississippi 2. Lake Superior 3. Red River
The process by which water seeps into the ground.
What is infiltration
Water is a liquid at temperatures between 0 and 100 Celsius. If the temperature range changed from 10 and 100 degrees C, which of the statements would be true?
a. The amount of liquid water would decrease, and the amount of water vapor would increase.
b. The amount of liquid water would increase, and the amount of solid water would decrease.
c. The amount of liquid water would decrease, and the amount of solid water would increase.
c. The amount of liquid water would decrease, and the amount of solid water would increase.