1 Have you ever been in a greenhouse

1. Have you ever been in a greenhouse before? What did you notice inside?

The Greenhouse Effect

What is the greenhouse effect? • Read pg. 456, including figure 3. • Then turn to pg. 540. Read this page also, including figure 6 at the bottom. • Close your book when you have finished reading both pages. Think about the question at the top.

What causes the greenhouse effect? • It is caused by gases in the atmosphere that trap thermal energy (heat). The gases absorb thermal energy and radiate it back to Earth.

Which gases cause the greenhouse effect? • • Water vapor Carbon dioxide Methane Nitrous oxide • Now for some Brain. POP… Sign in at www. brainpop. com to watch “The Greenhouse Effect” memmiddle brainpop

Global Warming

Proof of global warming

REAL arguments for global warming • Read pg. 457 and pg. 540 -541 (you’ve already read pg. 540 focusing on greenhouse effect). • Now write a definition of global warming.

REAL arguments for global warming http: //www. geocraft. com/WVFossils/greenhouse_d ata. html • Web site – write it down as source #2 and then record ideas from the site in the appropriate box on your worksheet. • Brain. POP – source #3 – watch and record any helpful ideas for either box. Brain. POP global warming

REAL arguments for global warming • Using the other articles provided, collect ideas for both opinions about global warming. Read the directions on your worksheet to help you.