Science 7 Unit 2:Climate and Weather

Climate: temperature and precipitation you Expect

vs.Weather: temperature and precipitation you Get

A. Climate• Climate– Typical temperature and precipitation in an area over time

Time scales for a…

Meteorologist (studies the atmosphere)Climate is typical temperature and precipitation over the last 30 years.

Geologist (studies rocks)

Climate is average temp and precipitation over the last million years.

Paleoscientist (studies Earth history)

Climate is average temp and precipitation over the last billion years.

B. Weather

• Weather– The state of atmosphere at a given time and place

• Most important characteristics of weather1. temperature 2. moisture– humidity – precipitation– clouds

3. visibility 4. wind5. air pressure

C. What We Need to Study1. To Understand

a. Heating of Earth by the Sunb. How Energy Relates to the Water Cyclec. The Atmosphere and Oceans Distribute Moisture

and Energy

2. To Describe– Clouds– Precipitation– Humidity– Temperature– Wind– Visibility

a. Heating of the Earth

Temperature: sunlight warming the Earth

b. Water Cycle

c. Distributing Heat and Moisture

Bookwork

• Exploring Earth’s Weather

– Chapter 1 Section 1 • Bold Words• Diagrams on pg. 14 – 15