עמוד:37

Closer Reading Answer in your notebook . 1 NASA developed each technology for a special reason . Read the reasons below and match them with the technologies mentioned on page 36 . 0 , NASA needed tools to collect soil and rocks on the moon . Si The workers who were building spacecraft needed to protect their eyes . c The spacecraft couldn't be too heavy during the launch so equipment needed to be small and lightweight . fl Astronauts needed to write in a weightless environment . 0 Astronauts needed healthy and tasty food . 2 Complete the sentences using one of the words in the box below . Wear sunglasses on sunny days to your eyes . The first time you use a cordless tool , you have to the battery for a long time . When the temperature is below 0 ° degrees Celsius , water and becomes ice . Planning a space mission is a long and difficult . In space , there is no so people and objects float around . When the battery is low on your cellular phone , you have to _ _ it . Thinking About What You Have Read Consider the spinoff items mentioned in the article and those listed in the box . Which spinoff item do you use on a regular basis ? Which spinoff item do you think has most helped people ? charge freezes gravity process protect recharge A Few More Space Spinoffs flat panel televisions trash compactors smoke detectors protective clothing invisible braces portable X-ray machines microcomputers improved aircraft engines lightweight CDs

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