What are the 3 most important words that describe the water cycle?
Evaporation, condensation and precipitation.
100
What are the 3 states of matter?
Solid, liquid, gas
100
True or False?
The properties of a solid are the same as the properties of a gas.
False
Solids: definite shape, definite volume, compact particles.
Gas: indefinite shape, indefinite volume, a lot of space between particles.
100
Give an example of a liquid.
Various!
200
What is precipitation?
When water falls to Earth in form of rain, snow or hail.
200
From where does most water evaporate?
From the oceans.
200
How can you transform a solid into a liquid?
By heating it.
200
True or False?
To change a liquid to a gas, we must cool it.
False.
Heat causes liquids to change to gases.
200
Give an example of a solid.
Various!
300
What is evaporation?
When water turns from liquid to gas because of heat.
300
Where does the energy that powers the water cycle come from?
The sun.
300
How can you transform a liquid into a solid?
By freezing it.
300
True or False?
Condensation is a result of water vapor mixing with hot air to transform back into a liquid.
False.
Condensation is a result of water vapor mixing with COLD air to transform back into a liquid.
300
Give an example of a gas.
Various!
400
What is condensation?
When water transforms from vapor to liquid and creates clouds.
400
Name 3 different types of precipitation.
Rain, snow, hail, fog, sleet...
400
How can you change a liquid into a gas?
By heating it.
400
True or False?
Snow is not a form of precipitation because it is not a liquid.
False.
Precipitation can be rain, hail, sleet AND snow.
400
Give an example of a liquid NATURALLY turning into a gas.
Water evaporating due the the heat of the sun.
500
What is transpiration?
When water vapor is released from plants and soil.
500
What is the main factor that determines if it will rain or snow?
How cold the air is.
500
Describe the properties of a solid (volume, mass, shape, etc).
Its volume does not change.
Its shape does not change and would not take the shape of another container.
It has its own mass.
It doesn't occupy much space- only its own mass.
It does not flow.
It can not be compressed
500
True or False?
Water is the ONLY substance that can naturally exist in 3 forms.
True.
500
Give an example of a solid NATURALLY turning into a liquid.
Snow on the ground melting due the heat of the sun.