1. Follows along with Interactive Notebook notes
Weather Phenomena
SOL 4.6
Follows along with Interactive Notebook notes

2. Temperature
Weather Includes:
Precipitation
Wind

3. Weather Instruments (Tools)
Temperature- the measure of the amount of heat energy in the atmosphere
Measured using a
THERMOMETER

4. Additional Weather Instruments
Wind Speed is measured using an ANEMOMETER
Wind Direction is measured using a
WEATHER VAIN.

5. Additional Weather Instruments
A RAIN GAUGE is used to measure the amount of precipitation.

6. Precipitation Includes:
Rain
Snow
Formed by ice crystals*

7. More types of Precipitation:
Mixture of snow and rain
Sleet
Hail
Formed by ice crystals*

8. Air Masses and Fronts
Air Masses: formed when air in the atmosphere is heated at the equator and cooled at the poles.
Fronts: formed when two air masses of different temperatures and humidity* bump into each other.
*Humidity is the amount of water vapor
in the air.

9. Types of Fronts Cold front Warm front
Cold air mass pushes into a warm air mass.
Warm air mass pushes into a cold air mass.

10. Additional Weather Tools
Air pressure is the result of the mass/weight of the air and temperature pushing on its surroundings. (atmospheric pressure)
Measured using
a BAROMETER

11. Do weather forecasters use air pressure to predict the weather?
High pressure areas are formed when air is cooled.
Low pressure is formed when air is warmed. Weather associated with low pressure areas are: clouds, rain, and wind.

12. Thunderstorms
Storms
Tornadoes
Hurricanes

13. Most common in Virginia, but when?
Thunderstorms
Strong winds, heavy rain, thunder, and lightning.
Most common in Virginia, but when?
How are they formed?

14. Hurricanes Largest Storm on Earth! Form over warm water
How do they begin?
What are some of the characteristics of a hurricane?
Hurricanes

15. What types of wind speed and what can they do?
Tornados
Column of warm air begins to spin upward forming a funnel cloud.
What types of wind speed and what can they do?

16. CLOUDS
Clouds are formed when warm air carrying water vapor rises from the Earth and the water vapor cools down and connect to each other.
Are all clouds the same?

17. Cumulus
Fluffy, white clouds with flat bottoms. Cumulus clouds usually indicate fair weather. (Middle)
Cotton balls
Resemble?

18. Cirrus
Feathery, wispy, clouds; associated with fair weather. They often indicate that rain or snow will fall within hours. (High)
Tiny ice crystals instead of water vapor
Made from?

19. Stratus
Flat, smooth, gray clouds that blanket/cover the whole sky. (low)
Light rain and drizzle
What type of weather?

20. Cumulo-nimbus
Foul weather storm clouds that bring heavy rains and thunderstorms.
Cumulus clouds joining together
How are they formed?

21. Spot the cloud!
Low and flat …..
Stratus

22. Spot the cloud!
Middle level,
fluffy …..
Cumulus

23. Spot the cloud!
High level,
wispy …..
Cirrus

24. Spot the cloud!
Rain bearing,
storm clouds …..
Cumulo-Nimbus

25. Let’s Review 
It’s time to play the…
Flyswatter Game

26. Cirrus Clouds Cold Front Wind/Weather Vane Thermometer Hurricane
High pressure
Snow
Air Masses
Cumulous Clouds
Low pressure
Precipitation
Barometer
Sleet
Cumulo-nimbus Clouds
Hail
Rain Gauge
Warm Front
Air pressure
Clouds
Thunderstorm
Tornado
Anemometer
Stratus Clouds
Weather
Meteorologists
Teacher should use the essential knowledge from the 4th grade science curriculum framework to ask questions.

27. The ABC’s of Weather
Draw a letter from the bag. Share a word or phrase that begins with the letter to summarize weather.
Tara Moore, Elementary Lead Science Teacher
Suffolk Public Schools
October 2005
Some cloud slides adapted from John Harris, Radley College, UK