Plants Are Producers Preface This science practice book for M.4 has been developed for English reading skill, learning contents. It is aimed at following students to obtain the essential knowledge for reading science skill. The content knowledge including Plants are producers, What’s in Your Cells?, Tissues, Organs, & Systems, It Circulates , The Excretory System are also focused on. This science practice book is written to accommodate such concepts of science. It is designed to give students the opportunity to practice science reading to gain knowledge and create new ideas. Students will be able to analyse, make decisions and communicate with others. The science practice book focuses on enabling students to have scientific thinking and social consciousness as well as the ability to apply their knowledge in their daily lives I have a strong intention to help develop students to be citizens who have lifelong learning mind. Students put their efforts to acquire knowledge and problem solving in a scientific way through the process of observation and investigation. In these ways, the body of knowledge will increase every day. Somchai Ponchai
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Transcript
Plants Are Producers
Preface
This science practice book for M.4 has been developed for English reading skill, learning contents. It is aimed at following students to obtain the essential knowledge for reading science skill. The content knowledge including Plants are producers, What’s in Your Cells?, Tissues, Organs, & Systems, It Circulates , The Excretory System are also focused on.
This science practice book is written to accommodate such concepts of science. It is designed to give students the opportunity to practice science reading to gain knowledge and create new ideas. Students will be able to analyse, make decisions and communicate with others. The science practice book focuses on enabling students to have scientific thinking and social consciousness as well as the ability to apply their knowledge in their daily lives
I have a strong intention to help develop students to be citizens who have lifelong learning mind. Students put their efforts to acquire knowledge and problem solving in a scientific way through the process of observation and investigation. In these ways, the body of knowledge will increase every day.
1. organelle found in cells of plants and some other organisms that use energy from sunlight to make energy rich food molecule by photosynthesis
A. chlorosplast B. Chlorophyll C.Flowers D. Roots
2. gas given off by plants A. Seeds B. Leaves C. Flowers D. Oxygen
3. seeds are carried by animals, wind or water increasing chance of survival A. Roots B. Seeds C. Stems D. Leaves
4. substance which causes a plant to be green A.Roots B. chlorosplast C. Chlorophyll D. Flowers
5. helps plants reproduce A. Stems B. Roots C. Leaves D. Flowers
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Pre-test
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6. process by which a plant uses energy from the sun to produce food A. Stems B. Photosynthesis C. chlorosplast D. Roots
7. gas taken in by plants A. Oxygen B. Roots C. carbon dioxide D. chlorosplast
8. Part of the plant where food production occurs A. Flowers B. Leaves C. Seeds D. Stems
9. Transports water and nutrients through the plant A. Roots B. Seeds C. Leaves D. Stems
10. Gets nutrients from the soil by absorbing water A. Roots B. Stems C. Seeds D. Leaves
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Pre-test
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Exercise A
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Exercise B
Vocabulary
consumer /kənˈsjuː.mə r / /-ˈsuː.mɚ/ noun [ C ] a person who buys goods or services for their own use The new telephone rates will affect all consumers including businesses. consumer rights/advice
producer /prəˈdjuː.sə r / /-ˈduː.sɚ/ noun [ C ] MAKER a company, country or person that provides goods, especially those which are produced by an
industrial process or grown or obtained through farming, usually in large amounts egg producers gas/oil producers Australia is one of the world's main producers of wool.
photosynthesis /ˌfəʊ.tə ʊ ˈsɪn t .θə.sɪs/ /ˌfoʊ.t oʊ-/ noun [ U ] the process by which a plant uses the energy from the light of the sun to produce its own food
chloroplast /ˈklɒr.ə.plɑːst/ /ˈklɔr.ə.plæst/ noun [ C ] one of the parts in a plant cell that contain chlorophyll and where the energy from sunlight is
turned into food by photosynthesis chlorophyll , US also chlorophyl /ˈklɒr.ə.fɪl/ /ˈklɔːr.ə-/ noun [ U ]
the green substance in plants, that allows them to use the energy from the sun bsorb /əbˈzɔːb/ /-ˈzɔːrb/ verb [ T ] TAKE IN
1. to take something in, especially gradually Plants absorb carbon dioxide. In cold climates, houses need to have walls that will absorb heat. 2. to reduce the effect of a physical force, shock or change The barrier absorbed the main impact of the crash.
molecule /ˈmɒl.ɪ.kjuːl/ /ˈmɑː.lɪ-/ noun [ C ] specialized the simplest unit of a chemical substance, usually a group of two or more atoms
release /rɪˈliːs/ verb [ T ] MAKE FREE 1. to give freedom or free movement to someone or something He was released from prison after serving two years of a five-year sentence. 2. to move a device from a fixed position to allow it to move freely He released the handbrake and the car jumped forwards.
breathe /briːð/ verb AIR 1. [ I or T ] to move air into and out of the lungs It's so airless in here - I can hardly breathe. The instructor told us to breathe in deeply and then breathe out slowly.
survive /səˈvaɪv/ /sɚ-/ verb 1. [ I or T ] to continue to live or exist, especially after coming close to dying or being destroyed
or after being in a difficult or threatening situation The baby was born with a heart problem and only survived for a few hours. 2. [ T ] to continue to live after someone, especially a member of your family, has died He is survived by his wife and four children.
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Plants Are Producers
Write the letter of the correct match next to each word.
1.
consumer
a. a person who buys goods or services for their own use
2.
producer
b. the process by which a plant uses the energy from the light of the sun to produce its own food
3.
photosynthesis c.
the simplest unit of a chemical substance, usually a group of two or more atoms
4.
chloroplast
d. a company, country or person that provides goods, especially those which are produced by an industrial process or grown
5.
chlorophyll
e. the green substance in plants, that allows them to use the energy from the sun
6.
absorb
f. to give freedom or free movement to someone or something
7.
molecule
g.
to continue to live or exist, especially after coming close to dying or being destroyed or after being in a difficult or threatening situation
8.
release h. to take something in, especially gradually
9.
breathe
i. to move air into and out of the lungs
10.
survive
j. one of the parts in a plant cell that contain chlorophyll and where the energy from sunlight is turned into food by photosynthesis
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Exercise C
Plants Are Producers
People are consumers. We have to spend large parts of our days finding, buying, cooking and eating our food. Did you ever think it might be nice to be able to make your own food like plants do? Plants are producers and perform a process called photosynthesis using light from the sun, water and carbon dioxide. Carbon dioxide is the gas we exhale when we breathe. The end result of this chemical reaction is sugar for the plant to “eat.” The plant releases water and oxygen, a gas all animals need to breathe, into the air.
So how do plants do it, and why can’t we? Plants have special structures called chloroplasts that animals don’t have. Chloroplasts are
round, fl at organelles that are arranged in stacks called grana.
These stacks are filled with chlorophyll. Chlorophyll is what gives leafy green plants their green color. Their main job is to absorb light from the sun. Chloroplasts can absorb every color except green. Light activates the chlorophyll. It creates an energy that splits molecules of water, separating them out into hydrogen and oxygen. Chemical reactions take place. Hydrogen from the water combines with carbon from the carbon dioxide we breathe out. Oxygen is released into the air.
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People and plants make perfect partners. Plants rely on the carbon dioxide that we breathe out, and we rely on the oxygen that they “breathe” out. This is one good reason for protecting plant life on Earth. Algae fields
near the poles produce a constant supply of oxygen for us. So do the many plants of Earth’s rainforests. We need plants in order to survive.
Conservation projects around the globe are aimed at protecting our natural resources, including numerous species of plants. Our quality of life and the very quality of the air we breathe depends upon our green plant partners.
Answer the following questions based on the reading passage. Don’t forget to go back to the passage whenever necessary to find or confirm your answers.
Read the passage and then make mind map for the passage in the space below.
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Exercise G
Answer these questions.
From reading, I have learned …………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………
I can’t really understand how ……………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………….
Before reading this article, I already knew ……………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………….
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Self Assessment
Plants Are Producers
Choose the best correct answer.
1. gas taken in by plants A. carbon dioxide B. Chlorophyll C. Roots D. Oxygen
2. Transports water and nutrients through the plant A. Stems B. Roots C. Seeds D. Leaves
3. seeds are carried by animals, wind or water increasing chance of survival A. Leaves B. Roots C. Seeds D. Stems
4. gas given off by plants A. Oxygen B. Seeds C. Leaves D. Flowers 5. process by which a plant uses energy from the sun to produce food
A. Stems B. Roots C. Chlorosplast D. Photosynthesis
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Post–test
Plants Are Producers
6. helps plants reproduce
A. Leaves B. Flowers C. Seeds D. Stems
7. Part of the plant where food production occurs A. Flowers B. Roots C. Leaves D. Seeds
8. Gets nutrients from the soil by absorbing water A. Roots B. Seeds C. Stems D. Flowers
9. substance which causes a plant to be green A. chlorosplast B. Flowers C. Chlorophyll D. Roots
10. organelle found in cells of plants and some other organisms that use energy from sunlight to make energy- rich food molecule by photosynthesis
A. Roots B. Chlorophyll C. Flowers D. Chlorosplast
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Post–test
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Answer Key For Exercise A
Plants Are Producers
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Answer Key For Exercise B
Plants Are Producers
1. A 2.D 3.B 4.C 5.D 6.B 7.C 8.B 9.D 10.B
1. a 2. d 3. b 4. j 5. e 6. h 7. c 8. f 9. i 10. g
Actual wording of answers may vary. 1. They produce their own food. 2. chlorophyll 3. because we breathe out carbon dioxide which plants need and they release oxygen which we need. 4. We would run out of oxygen to breathe. Or There would be too much carbon dioxide in the air. 5. an organelle in plant cells.