test study guide
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| What is the percentage of Oxygen in the air | 19%
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| The water cycle | the continuos movement of water from water sources such as lakes rivers and oceans, into the air, onto and over land, into the ground, ind back t water sources
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| The water cycle |
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| 1. evaporation | when liquid water turns into gases water called water vapor
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| 1a. transpiration | plants release water vapor into the air
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| 2. condensation | when water vapor turns into liquid water
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| 3. precipitation | water falls back to earth
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| 4. run-off | water collects and returns to water sources
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| What is weather | weather is the condition of the atmosphere at a particular time and place
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| what is the solid form of water | snow
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| what is the liquid for of water | rain
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| what is the gas form of water | water vapor
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| humidity | the amount of water vapor in the air
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| when temp. increases what else increases | water vapor because there is more thermal en. to do the work of evaporation
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| relative hum. | is how much water vapor is in the air compared to how much could be in the air at a particular temp.
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| Dew point | this is the point at which air is saturated ( full of water ) and condensation begins. it is measured in degrees. it accurately reflects how it feels outside
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| what happens when relative humidity reaches 100% | the air is saturated, and reaches its dew point
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| dew point can never be higher than the __________ | temperature
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| if dew point increases that means the _________ has increased | moisture
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| CLOUDS |
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| cumulus clouds | - puffy
- white clouds
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| cumulonimbus clouds | - storm clouds
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| cirrus clouds | high clouds
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| stratus clouds | layered clouds
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| PRECIPITATION |
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| what do rain drops look like | hamburger buns
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| how does snow form | forms when water vapor changes directly to a solid ( ice crystals ), sometimes ice crystals join together to make snow flakes .
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| how many points does a snowflake have | 6
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| how does sleet form | sleet forms when rain falls through a layer if freezing air it freezes and produces ice
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| in which cloud is hail made in | cumulonimbus cloud
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| hail occurs in ___________ and _______ | spring and summer
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| how does hail form | hail starts out as rain and when it falls through the warm section of the cloud it evaporates and goes in the cold section f the cloud after doing this patterns a lot of times it creates layers of ice and forms hail
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| Cloud in a bottle experiment |
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| 1st step of cloud in a bottle experiment | water vapor and dust particles are in the air
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| 2nd step of cloud in a bottle experiment | when you squeeze the bottle, you increase the pressure in the bottle
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| 3rd step of cloud in a bottle experiment | the increased pressure causes the temp. to rise
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| 4th step of cloud in a bottle experiment | the rising air temp. causes more of the water in the bottom if the bottle to evaporate ( turn into water vapor ), increasing humidity in the bottle.
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| 5th step of cloud in a bottle experiment | when you release the bottle, the pressure in the bottle drops
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| 6th step of cloud in a bottle experiment | when the pressure drops, the temp. also drops
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| 7th step of cloud in a bottle experiment | when the air cools, it is saturated (cold air cannot hold as much moisture as warmer air) . in other words, the air has reached dew point
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| 8th step of cloud in a bottle experiment | condensation occurs
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| 9th step of cloud in a bottle experiment | Billions of tiny droplets of water join together and make a cloud
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| Condensation nuclei | dust, salt, ash etc. particles in the air onto which water vapor condenses to form a cloud
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| conduction | is the transfer of thermal en. from one material to another by direct contact
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| convection | is the transfer of thermal en. by the circulation or movement of a liquid or gas ( fluids ).
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| radiation | is the transfer of en. as electromagnetic waves.
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| what tool is used to measure relative humidity | psychrometer
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| what tool is used to measure rain | rain gauge
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| how is a rain drop formed | a rain drop starts as small as a period then other droplets join and make a rail drop.
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