1. Find out who first found X-rays.
2. What advantages could waves with short wavelengths have?
3. Plants depend on light to make their own food. But exactly how do they store light energy? Find out.
To be answered by 3/3 after reading chap3.2 and 3.3(79~92p).
1. Wilhelm Roentgen first found X-rays.
2. When the wavelenghts shortens, the frequencies and the energies become higher. When the waves posesses more energies, it can be used in many ways. For example, Gamma rays, which is the rays that has the shortest wavelenghts on the diagram in the book, can be used to treat illnesses and create images.
3. They use a method called photosynthesis. And the use water, sunlight, and carbon dioxide to use this method