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Sara Grobman

on 25 March 2013

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Transcript of Precipitation

DO NOW! 1. What causes rain?

2. Explain the water cycle Focus Questions: Today's Agenda: Weather Journal BrainPop
Videos Rain in a jar Demonstration 1. Weather Journal
2. Finish Air Front foldable
3. Brain Pop videos
4. Water Cycle Notes
5. Tweet 1. How is precipitation formed?

2. What are the main steps in the water cycle that lead to the formation of precipitation? How is precipitation formed? -Due to the sun's heat, water from bodies of water evaporates
-This gas rises and mixes with the air in the atmosphere Condensation When enough water vapour has collected in a cloud, it falls as precipitation The Water Cycle: The process by which water moves back and forth between the Earth and the atmosphere Evaporation -In the atmosphere, the water droplets float in the air
-Millions of these floating water droplets form clouds Precipitation -water falling to the ground from the atmosphere

-water can fall as: liquid, solid, semi-solid

-Each type of precipitation is unique with their own important characteristics Precipitation Weather Journal Rain Snow Hail Sleet -The most common type of precipitation
in our atmosphere

-Drops of moisture join together in a cloud until they are too heavy to be supported by the
cloud and fall to the ground

-Rain falls to the surface of
earth as WATER droplets
-Water vapour in a cloud turns directly into ice without every being a liquid
-When the ice crystals get big enough, gravity makes them fall to the ground - -Ice crystals form in clouds and being to fall to the earth. As this happens, wind gusts pick up the crystals and push them back into the clouds

-The crystals grow in size (making hail)

-This process repeats
until the hail stones are
so heavy that they fall
to the ground Rain that changes from its liquid form as it falls to the earth (forms as a liquid but freezes when it hits the ground)
-Heavier than snow
-Mixture of snow
and rain Focus Questions 1. What are the four main types of precipitation?

2. What are the differences between these types of precipitation? Today's Agenda 1. Weather Journal
2. Rain in a jar video
3. Convection Box Demo
3. Precipitation Notes
4. Brainpop: snowflakes
4. Intro to clouds: brain pop
5. Tweet BrainPop Videos Grade 5 Tweets @ Your Name #_______________ 1. Pick one form of precipitation: how does it form? what does it look like when it falls to the ground? Finish Air Fronts -Air always contains moisture
-The amount of water vapour in the air at a given time is called: HUMIDITY
-The more water vapour in the air = more humid AIR CONTAINS MOISTURE Grade 5 Tweets @ YOUR NAME
# ______________

1. Explain one phase of the water cycle DO NOW! Convection Box
Full transcript