1        http://kin.naver.com/open100/detail.nhn?d1id=11&dirId=1114&docId=82481&qb=WOyEoCDrsJzqsqw=&enc=utf8&section=kin&rank=1&search_sort=0&spq=0&pid=RfvV6c5Y7udssbr3j7wsssssssh-464699&sid=USDrSHJvLDYAAFZ9UOw

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2.  A CD gets read by light. The light goes in and out of the holes in the CD. With a shorter wavelength, the data can be more precise.

3.  CO2(carbon dioxide) and H2O(water) is changed in to C6H12O6 and O2(oxagen) inside the plant. The energy from the light is stored in the bonds of the molecule. During digestion, the C6H12O6 and O2 is changed back to water and carbondioxide and water, and in doing so, produces the energy we need to live.

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> 1. Find out who first found X-rays.
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> 2. What advantages could waves with short wavelengths have?
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> 3. Plants depend on light to make their own food. But exactly how do they store light energy? Find out.
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> To be answered by 3/3 after reading chap3.2 and 3.3(79~92p).