Instruments & Types of Precipitation Notes

Weather
Instruments
&
Types of
Precipitation
Notes

Weather Tools

•Thermometer

• Measures the average

amount of thermal energy in
particles

• Used to measure

temperature

• Measured in O Celsius

(science)

Weather Tools

•Barometer

• Measure the changes in the

atmospheric pressure to help
predict changes in weather

• High pressure = good weather
• Low pressure= precipitation
• Measure in millibars

Weather Tools

•Anemometer

•Measures the
speed of wind

•Measured in miles

per hour

Weather Tools

•Hygrometer

• Measure relative humidity,

which is the percent of
water vapor in the air

• Measured in percent, as it

nears 100% the chance of
rain goes up.

Match

Match the following

• temperature

• humidity

• air pressure

• wind speed

thermometer

hygrometer

barometer

anemometer

• thermometer

• hygrometer

• barometer

• anemometer

Match

Match the following

temperature

air pressure

humidity

wind speed

• temperature

• air pressure

• humidity

• wind speed

Types of Precipitation

•Rain

·Drops of water at least 0.5mm in diameter

​

​Types of Precipitation

•Snow

Water vapor changed
into ice crystals in clouds

​

​Types of Precipitation

Sleet

·Rain falls through a
layer of cold air and
freezes before it hits the ground
Smaller than 5mm

​

​Types of Precipitation

•Hail

·Round ice pellets larger than 5mm

·Only form in thunderstorms

​

​Types of Precipitation

Freezing Rain

Rain that falls as liquid
but freezes once it hits a
cold surface

​

​Types of Precipitation

Match

Match the following

• Water vapor changed into ice crystals in clouds

• Rain that falls as liquid but freezes once it hits a cold surface

• Round ice pellets larger that 5mm. Only formed in thunderstorms.

• Drops of water at least 0.5mm in diameter.

• Rain that falls through a layer of cold air and freeze before it hits the ground.

snow

freezing rain

hail

rain

sleet

• snow

• freezing rain

• hail

• rain

• sleet

Match

Match the following

snow

rain

sleet

freezing rain

hail

• snow

• rain

• sleet

• freezing rain

• hail

Multiple Choice

Which types of precipitation do you see most often?

• rain

• snow

• sleet

• freezing rain

Multiple Choice

Which types of precipitation only occurs in the summer in thunderstorms?

• rain

• hail

• snow

• sleet