5. 1 Web Search What are the properties of Earth’s atmosphere? 2 Web Search What is atmospheric pressure? 3 Web Search What is the difference between the atmospheres of Earth and Mars? What are each composed of? 4 Web Search What are the differences between atmospheric pressure on Earth and Mars? 5 Thinking How do you think the difference in atmospheric pressure would affect a human trying to live on Mars?

7. 1 Web Search What are the properties of Earth’s atmosphere? 2 Web Search What is atmospheric pressure? 3 Web Search What is the difference between the atmospheres of Earth and Mars? What are each composed of? 4 Web Search What are the differences between atmospheric pressure on Earth and Mars? 5 Thinking How do you think the difference in atmospheric pressure would affect a human trying to live on Mars?

8. 1 Web Search What are the properties of Earth’s atmosphere? 2 Web Search What is atmospheric pressure? Why does it matter? 3 Web Search What is the difference between the atmospheres of Earth and Mars? What are each composed of? 4 Web Search What are the differences between atmospheric pressure on Earth and Mars? 5 Thinking How do you think the difference in atmospheric pressure would affect a human trying to live on Mars?

9. 1 Web Search What are the properties of Earth’s atmosphere? 2 Web Search What is atmospheric pressure? Why does it matter? 3 Web Search What is the difference between the atmospheres of Earth and Mars? What are each composed of? 4 Web Search What are the differences between atmospheric pressure on Earth and Mars? 5 Thinking How do you think the difference in atmospheric pressure would affect a human trying to live on Mars?

10. 1 Web Search What are the properties of Earth’s atmosphere? 2 Web Search What is atmospheric pressure? Why does it matter? 3 Web Search What is the difference between the atmospheres of Earth and Mars? What are each composed of? 4 Web Search What are the differences between atmospheric pressure on Earth and Mars? 5 Thinking How do you think the difference in atmospheric pressure would affect a human trying to live on Mars?

11. 1 Web Search What are the properties of Earth’s atmosphere? 2 Web Search What is atmospheric pressure? Why does it matter? 3 Web Search What is the difference between the atmospheres of Earth and Mars? What are each composed of? 4 Web Search What are the differences between atmospheric pressure on Earth and Mars? 5 Thinking How do you think the difference in atmospheric pressure would affect a human trying to live on Mars?

12. 1 Web Search What are the properties of Earth’s atmosphere? 2 Web Search What is atmospheric pressure? Why does it matter? 3 Web Search What is the difference between the atmospheres of Earth and Mars? What are each composed of? 4 Web Search What are the differences between atmospheric pressure on Earth and Mars? 5 Thinking How do you think the difference in atmospheric pressure would affect a human trying to live on Mars?