growing food on Mars.ppt

Growing food on Mars Warming up Can you guess which planet this is? How can you tell? Its Mars. Its red color is unique. This is the surface of Mars. Do you believe man can grow plants on Mars one day? Can you recognize what this is? What do you think it has to do with Mars? There is a project called “Lettuce On Mars”. It could lead to an exciting future. Fast reading Are the statements below true or false? If false, correct them. 1. A British-led group is planning to plant lettuce on Mars before 2018. 2. On Mars the wind blows hard, and it often rains heavily. 3. The British-led group would be the first to send plants to the International Space Station. 4. The greenhouse would be launched from Earth with lettuce seeds, water, nutrients, and carbon dioxide. 5. On the way to Mars, it would have no power, and the lettuce seeds would be frozen. Are the statements below true or false? as soon as 2018. never rains because the planet has a thin atmosphere and lacks a magnetic shield. another planet. an atmosphere. Carbon dioxide would be taken from the atmosphere of Mars. Choose the best answer:1. What is the article mainly about?A. A recent technical breakthrough in space travel.B. An inspiring plan to grow plants on Mars.C. A grand mission to build human settlements on Mars.D. A detailed introduction to the harsh environment on Mars. 2. According to the article, a great challenge the Lettuce On Mars project faces is that ______.A. plants need gravity to grow in space and on MarsB. there is too much carbon dioxide in Mars’ atmosphereC. it is impossible for plants to survive on their own in Mars’ environmentD. scientists are still finding ways to send the lettuce seeds through space 3. Which of the following procedures for the Lettuce On Mars project are correct?a. Seeds, water, nutrients and an atmosphere are put into a greenhouse.b. The lettuce seeds are frozen during the space trip.c. The greenhouse is heated to a temperature above 24C.d. Carbon di