1) In what direction, relative to Earth’s surface, are all the yellow photons moving? 2) In which directions, relative to Earth’s surface, are the red photons moving? 3) Which color photons represent sunlight? 4) Which color photons represent heat? 5) Does the Earth emit visible light or heat? 6) With the right menu bar set to today’s atmosphere, what is the average surface temperature of the planet? 7) Slide the greenhouse gas concentration slider to no greenhouse gasses. What is the average surface temperature of the planet now? 8) Could life as we know it exist on Earth without greenhouse gasses? Explain. 9) Add 1 cloud to the atmosphere. What effect does it have on surface temperature? 10) Add 3 clouds to the atmosphere. What effect does it have on surface temperature? 11) What do the yellow photons do when they hit a cloud? 12) What do the red photons do when they hit a cloud? 13) As the planet warms more water vapor, a powerful greenhouse gas, evaporates into the atmosphere. But as more water vapor enters the atmosphere, more clouds form. Using this information and the simulation, explain why there is debate about whether more water vapor in the atmosphere will lead to more warming or more cooling of the Earth’s surface. 1) Which gasses absorb visible light photons? 2)Which gasses absorb infrared photons? 3) Which gasses can be classified as greenhouse gasses? 4) What do the greenhouse gasses do with the energy they absorb? 1. What did you learn about the Greenhouse Effect? 2. What is your decision on whether the Earth is heating up? 3. If you think the Earth is heating, what can YOU do to change that? That is, what can you do to reduce Greenhouse gases that YOU emit?

1) In what direction, relative to Earth’s surface, are all the yellow photons moving? 2) In which directions, relative to Earth’s surface, are the red photons moving? 3) Which color photons represent sunlight? 4) Which color photons represent heat? 5) Does the Earth emit visible light or heat? 6) With the right menu bar set to today’s atmosphere, what is the average surface temperature of the planet? 7) Slide the greenhouse gas concentration slider to no greenhouse gasses. What is the average surface temperature of the planet now? 8) Could life as we know it exist on Earth without greenhouse gasses? Explain. 9) Add 1 cloud to the atmosphere. What effect does it have on surface temperature? 10) Add 3 clouds to the atmosphere. What effect does it have on surface temperature? 11) What do the yellow photons do when they hit a cloud? 12) What do the red photons do when they hit a cloud? 13) As the planet warms more water vapor, a powerful greenhouse gas, evaporates into the atmosphere. But as more water vapor enters the atmosphere, more clouds form. Using this information and the simulation, explain why there is debate about whether more water vapor in the atmosphere will lead to more warming or more cooling of the Earth’s surface. 1) Which gasses absorb visible light photons? 2)Which gasses absorb infrared photons? 3) Which gasses can be classified as greenhouse gasses? 4) What do the greenhouse gasses do with the energy they absorb? 1. What did you learn about the Greenhouse Effect? 2. What is your decision on whether the Earth is heating up? 3. If you think the Earth is heating, what can YOU do to change that? That is, what can you do to reduce Greenhouse gases that YOU emit?