1. METEOROLOGY: MOISTURE AND WEATHER Eric Angat Science teacher EEN 2.5.2

2. Instructions: 1. Open your notebook to a blank page. 2. Write the title of the lesson on the upper middle of the page. The title of the lesson is “Air Masses”. 3. Write the date on the upper right of the page. 4. Copy the Essential Questions and answer them. 5. Watch the movie clip and answer the questions.

3. Copy and Answer the following Questions 1. What is the ultimate source of energy of our planet? 2. What causes wind? 3. What causes evaporation? 4. What are clouds made of? 5. What makes up weather?

4. The Sun and the Weather The ultimate source of energy on Earth is the Sun. Wind would not happen without temperature differences. Evaporation would not happen without wind. Clouds will not form without water vapor, And there would not be weather without all of these.

5. Copy and Answer the following Questions 1. What is the ultimate source of energy of our planet? 2. What causes wind? 3. What causes evaporation? 4. What are clouds made of? 5. What makes up weather? Sun Temperature differences Wind Water vapor Sun, temperature differences, wind, water vapor, etc.

6. 6. What is the relationship between moisture and weather? 2.10

7. 6. What is the relationship between moisture and weather? Warm air over the warm ocean has a lot of moisture that can result to precipitation.

8. 7. How do air masses form? An air mass is a large body of air with generally uniform temperature and humidity. The area over which an air mass originates is what provides it's characteristics.

9. Air masses are formed by the uneven heating and cooling of Earth by the Sun. 7. How do air masses form?

10. Moisture in air Moisture condenses as air cools. This is because the cooler the air is, the less water vapor it can hold. Dew drops Breathing Clouds When you breathe out, you are filling the air with water vapor. If the air is very cold, the vapor will turn into lots of tiny water droplets and your breath looks "steamy".

11. 8. How do storms form?

12. Tropical depression and storms TROPICAL DEPRESSION Winds of 20-34 knots (38 mph or less) TROPICAL STORM Winds of 35-64 knots (39 to 73 mph)

13. Hurricane categories

17. Tornadoes Tornadoes are ranked in the Enhanced Fujita Tornado Scale according to wind speed. EF-0: 65-85 mph winds EF-1: 86-110 mph winds EF-2: 111-135 mph winds EF-3: 136-165 mph winds EF-4: 166-200 mph winds EF-5: 200 mph and above winds

18. Define the following A. Weather B. Temperature C. Humidity D. Dew point E. front F. Storm G. Tropical depression H. Tropical storm I. hurricane

21. Comparing Storms and Tornadoes Storms Tornadoes Both forms where air masses meet Starts above warm water. Starts on land Weakens when it reach land. Weakens when air dissipates.