7th Grade Chapter 5 Lesson 4

  • 655 views
Uploaded on

For Student Use Only

For Student Use Only

More in: Education , Technology
  • Full Name Full Name Comment goes here.
    Are you sure you want to
    Your message goes here
    Be the first to comment
    Be the first to like this
No Downloads

Views

Total Views
655
On Slideshare
0
From Embeds
0
Number of Embeds
1

Actions

Shares
Downloads
0
Comments
0
Likes
0

Embeds 0

No embeds

Report content

Flagged as inappropriate Flag as inappropriate
Flag as inappropriate

Select your reason for flagging this presentation as inappropriate.

Cancel
    No notes for slide

Transcript

  • 1. 7 th Grade Chapter 5 Lesson 4 Pgs. 178-183 For Student Use Only
  • 2. The Motion of Air
    • Wind- movement of air from one place to another in a horizontal motion.
    • Updraft, Current, and Downdraft- wind moving vertically
    • Wind- has kinetic energy
  • 3. Energy
    • Sun- source of all heating
    • Radiant Energy is converted into kinetic energy (to heat)
    • Earth and Water release heat energy
  • 4. Energy
    • Temperature Factor
      • Winds= a direct result of the temperature differences that exist across the surface of the Earth
      • Different surfaces heat differently
        • Some surfaces reflect light and some absorb light
        • Remember darker surfaces absorb more than lighter surfaces
      • Different areas of the Earth heat differently
        • The angle of the sun is more direct at different areas
  • 5. Heat Energy
    • Albedo- the percentage of radiation that is reflected
    • Color is determined by the amount of light that is reflected
      • Black absorbs colors
      • White reflects all colors
      • Dark heats up more quickly than light
  • 6. Heat Energy
    • Three differences between land and water
      • 1. Water is somewhat transparent but land is not
      • 2. Land is a solid but water is a liquid
      • 3. Water has a much greater heat capacity than land
  • 7. Difference between soil and water
      • 1. Water is somewhat transparent but land is not
        • Radiant energy heats water differently from soil
    • Movie Notes:
      • A Look at How Land Heats up
  • 8. Difference between soil and water
      • 2. Land is a solid but water is a liquid
        • Molecules of solid do not move, but liquids do move and heat up quickly
        • Liquids create convection currents (warm fluids rise and cool fluids sink)
    • Movie Notes:
      • Surface Wind and Convection Currents
  • 9. Difference between soil and water
      • 3. Water has a much greater heat capacity than land
      • - Heat Capacity- a substance is the amount of energy needed to raise its temperature by one degree
    • Movie Notes:
      • Heat Capacity
  • 10. Heat Capacity
    • These differences make different objects heat up differently
      • It is important that water heat up slowly
        • Our bodies are water
        • Our Earth is water