Chapter 7 Vocabulary Practice

3. There are many different ___ to living on Mars, but maybe in the future we will be able to solve these problems.
8. It would be amazing if humans could grow food on Mars because then life would be ___.
9. Mars is ___ due to a lack of oxygen and water.
12. In order to travel to Mars, we must have an ___ kind of fuel because we can't carry enough to get to Mars and back home.
14. If humans could live on Mars, we would need a new kind of ___ to travel around the planet.
15. By doing your homework and getting high scores on your test, you can ___ a good grade in this class.
16. If you want to be an astronaut in the future, you face many exciting ___ now to prepare for space travel.

1. It is possible to ___ obstacles in order to travel to Mars by creating new technology.
2. ___ are not available in space, so you must bring food, water, and other supplies.
4. Enough supplies for a mission to Mars are ___ for all astronauts' survival.
5. In order to start new space projects, NASA must follow many ___ rules and fill out government paperwork.
6. Currently, money for space projects is ___ because some people agree that space travel is necessary and some don't.
7. Right now, human technology is ___ for traveling to Mars; we could not survive.
10. NASA has many space ____ located around the U.S. such as mission control in Huston, Texas and the launch site in Florida.
11. After the police found the murdered woman's body, they spent time ___ clues around the area.
13. Many people ___ that Martians(aliens) are green and have big black eyes and want to control the earth.