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Plants are green because they contain
Chlorophyll is an amazing substance. It can trap energy from sunlight. Plants take in carbon dioxide and water. These are the raw materials plants need to make their own food. Energy trapped by chlorophyll drives this process. The process is called photosynthesis. The word photosynthesis also comes from the Greek language. Can you deduce (work out) what it means? Remember photo- means light. Synthesis means to make or to put together. What is photosynthesis?
This is how biologists group plants and animals. Plants make their own food using sunlight. On the other hand, animals cannot make their own food. Is this the only way that plants and animals could be classified? No. But this is the way scientists have decided to group plants and animals. Try completing this summary in the exercise to find out. |
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End of lesson 6 - Classifying living things |
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