Evaporation
What is Evaporation?
The process by which water changes from a liquid to a gas or vapor.
What are 3 forms of Precipitation?
Rain
Snow
Hail
Sleet
What is the process of water vapor turning into liquid water?
Condensation.
What does the Sun do for the Water Cycle?
It evaporates water.
How old is our water at this time?
Millions and millions of years.
How do plants contribute to the water cycle?
Water travels from the soil, through the plant, and then evaporates from the leaves into the atmosphere.
What 2 things must there be for a cloud form?
Water and dust, ash, etc. for the water to cling to.
What is the opposite of evaporation?
Condensation.
How does gravity work in the water cycle?
It pulls the precipitation down to earth.
Why is the water cycle so important for living things?
Living things need water to survive.
Name at least for sources on Earth from which water can evaporate?
Lakes, Rivers, Ocean, Animals, Plants.
What causes precipitation to be snow, not rain?
It freezes.
What state of matter is condensation?
Liquid.
Explain how energy from the Sun and Gravity drive the water cycle. You must use both the word SUN and GRAVITIY.
Sun's energy evaporates water into the atmosphere. It eventually falls back to Earth using gravity. Then the cycle repeats.
Complete: The phase water is in occurs when there is a change in ______________________.
Energy.
Ocean water is very salty. When ocean water evaporates, what happens to the salt?
It is left behind. (The density of the water becomes heavier because of all the salt).
Where does water go after it falls to Earth as precipitation? Name 3.
Oceans, lakes, streams, soil, atmosphere, reservoirs, glaciers, underground collectors.
Give a real life example of water vapor.
Window in a car on a cold day.
Droplets on the outside of a drinking glass.
Dew on the grass.
Density is how heavy something gets. How does density work in a cloud?
It makes the water droplets connect with each other until they get so heavy, they fall.
(Think of the eyedropper, the lid, and the sharp pencil experiment).
Explain how water from the ocean ends up as snow on a mountain.
It evaporates and makes a cloud.
The cloud moves because of the wind.
When it moves above a mountain, it gets very cold and falls as snow.
In your neighborhood, why are some people's snow gone before others'?
It depends on how much sun hits that area of Earth.
What determines whether precipitation will fall as rain or snow?
Temperature. Snow is colder. Rain is not as cold.
What is dew on grass?
Water vapor on the grass.
Choose: Water vapor has (high, low) density.
Precipitation has (high, low) density.
Water vapor is low weight. It's a gas.
Precipitation has high weight and gravity pulls it down.
What is another name for the Water Cycle?
Hydrological cycle.