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Name: _____________________________ Date: _____________ Science Notes: Unit 4: Chapter 6 Living Organisms Lesson 3: How do plants make food? (p. 192- 195) VOCABULARY photosynthesis- the process in which plants make sugar chlorophyll- the substance in plants that makes their parts green and captures energy from sunlight NOTES Needs of a Plant To live, grow, and reproduce, plants need the following: o sunlight o water o carbon dioxide from the air o nutrients from the soil The amounts of sunlight and water that plants need can be different. What does a plant need to live, grow, and reproduce? A plant needs sunlight, water, carbon dioxide, and soil nutrients. Why might some plants need less water than others? Some plants may be able to better store water inside than others. How Plants Make Food Plants make their own food. Most plants have 3 special parts: roots, leaves, and stems. Plants need carbon dioxide, water, nutrients and sunlight to make food. The food plants make is sugar. The process of the plants making sugar is called photosynthesis. o Plants use energy in sunlight to change carbon dioxide and water into food. o Oxygen and water are waste products of photosynthesis. What is photosynthesis? Photosynthesis is the process by which plants use the energy in sunlight to change carbon dioxide and water into sugar. Name: _____________________________ Date: _____________ Science Notes: Unit 4: Chapter 6 Living Organisms Why do plants’ roots stretch out into different directions into the soil? The roots stretch out so they can get nutrients from different parts of the soil surrounding the roots. What might happen if a plant did not get enough sunlight and water? The plant could die because it would not be able to make its own food without sunlight and water. Plant cells contain tiny structures called chloroplasts. Photosynthesis usually takes place in the chloroplasts of the leaf cells. Chloroplasts contain chlorophyll, which is the substance in plants that makes their parts green and captures energy from sunlight. How are the chloroplasts different from the chlorophyll? Chloroplasts are tiny structures inside a plant’s leaf cells; chlorophyll is a substance found inside chloroplasts that make a plants’ parts green and captures energy from sunlight. **Test will consist of material from notes, textbook, and questions from handouts completed in class.**