Download Lesson 1: What is Motion

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
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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.
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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.
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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.**