1. R21 Global Warming & Greenhouse Effect Prior Knowledge: What do you know about Greenhouse Effect and Global Warming?

2. 1.Is the process by which gases in the atmosphere, such as water vapor and carbon dioxide, absorb thermal energy and radiate it back to Earth. 2.A gradual increase in average global temperatures. 3.Human activity: burning fossil fuels and deforestation → increases greenhouse gases (includes CO 2 & Chloroflourocarbons) 1.What is Greenhouse Effect? 2.What is Global Warming? 3.What factors might contribute to increasing global temperatures? R 21

3. http://www.globalindustrial.com/p/storage/greenhouse/polycarbonate-greenhouses/snap-grow-6-x-8- greenhouse-silver?utm_source=google_pr&utm_medium=cpc&utm_campaign=Greenhouses- Polycarbonate-google_pr&infoParam.campaignId=T9F&gclid=CK7ljor3-LICFQfonAoduFQAhg

5. http://www.classzone.com/books/ml_science_share/vis_sim/eam05_pg24_greenhouse/eam05_pg24_greenhouse.html www.classzone.com/books/ml_scienc e_share/vis_sim/eam05_pg24_greenhouse/ eam05_pg24_greenhouse.html