Natural Sciences and Technology Grade 6-A - Thunderbolt Kids

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DID YOU KNOW? Scientists have a term for substances like chlorophyll that have a colour. They call them pigments. There are other pigments in plants. Can you think of their colours? There are pigments in your body too! Where do you find them? What do they do? DID YOU KNOW? These holes also allow other gasses and water to enter or leave the plant. They do the same job as your mouth and nose when you breath! The same job as the pores in your skin when you sweat! 1. Chlorophyll: Chlorophyll is agreen substance that plants use to capture light energy from the sun. Chlorophyll is very important. Without chlorophyll plants cannot use the sunlight energy to make food. 2. Sunlight: Sunlight has energy. Plants use this energy to make sugars from water and carbon dioxide. 3. Water: The roots of aplant absorb water and nutrients from the soil. Water is asolvent in all living things. Dissolved substances are moved around the body to where they are needed. Just like you plants have veins for this movement. They move minerals from the roots upwards. They move sugars from the leaves downwards. Photosynthesis can only happen in awater solution. Water is also important because it provides support to the plant to keep it upright. Like you, plants have skeletons. But unlike you many plants have water skeletons! 4. Carbon dioxide: The plant absorbs or takes in carbon dioxide from the air through little holes. These holes are found all over the plant, mostly under the leaves. 5. Soil: The soil provides mineral nutrients and water for the plant that are necessary during photosynthesis. Soil also provides anchorage to the plant, otherwise the plant cannot stand up straight. How does photosynthesis occur? Plants use chlorophyll, sunlight, water and carbon dioxide to make food. • Chlorophyll captures the sunlight energy. • This energy splits the water into hydrogen and oxygen. • The oxygen is released into the air. • The hydrogen is used with the carbon dioxide to make glucose (sugars). • The sugars are moved from the leaves to other parts of the plants where they are stored. • The water in the plant veins carries the sugars. When the sugars reach the storage parts they are changed into starch. • Plants can store the starch in these places: – leaves (cabbage, spinach, lettuce) – fruit (apples, banana, peaches) 6 Life and Living
– stem (sugar cane) – seeds (wheat or mealies) – flowers (nasturtiums, broccoli and cauliflower) – roots (carrots or beetroot) Here is asimple illustration to show how this process occurs: The process of photosynthesis. Don't you think this all sounds very technical? Why don't we try act it out?! Chapter 1. Photosynthesis VISIT VISIT AThe game photosynthesis on growing Photosynthesis plants! song. video. goo.gl/RpHpV goo.gl/PLk0G goo.gl/oFp5v 7
Page 1 and 2: Natural Sciences and Technology Gra
Page 3 and 4: AUTHORS LIST This book was written
Page 5 and 6: Welcome to Grade 6 and to Natural S
Page 7 and 8: Hey! My name is Tom. I have two pla
Page 9 and 10: Hello! My name is Sophie. One of my
Page 11: Table of Contents Life and Living a
Page 15: Scientists have found out exactly h
Page 19 and 20: 2. Design a poster for your Gr 4fri
Page 21 and 22: Sunflower seeds. Lettuce. Sugar can
Page 23 and 24: QUESTIONS: 1. Was it easy to distin
Page 25 and 26: QUESTIONS: 1. Which test do you thi
Page 27 and 28: QUESTIONS: 1. Make a list of living
Page 29 and 30: REVISION: 1. List the four things t
Page 31 and 32: 7. What do plants store glucose as?
Page 33 and 34: Examples of the foods in the food g
Page 35 and 36: 3. Fats and oils: Meat. Lentils. Al
Page 37 and 38: Name of vitamin Sources Function Vi
Page 39 and 40: Very often food manufacturers add d
Page 41 and 42: The natural foods contained a mixtu
Page 43 and 44: KEY CONCEPTS • Food groups: - foo
Page 45 and 46: Name of vitamin Vitamin A Vitamin C
Page 47 and 48: • The food in the middle of the p
Page 49 and 50: Tuesday Wednesday Thursday Friday t
Page 51 and 52: 4. What important food group is Raj
Page 53 and 54: Breakfast: Option 1: Fruit loops Op
Page 55 and 56: Supper: Option 1: Chicken pieces Op
Page 57 and 58: Causes of apoor diet There are many
Page 59 and 60: • Diabetes: This is adisease that
Page 61 and 62: 3. On your poster, you must include
Page 63 and 64: 4. Write a paragraph where you expl
Page 65 and 66: ACTIVITY: A REALLY old role play Wo
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2. Can you predict how the locals w
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Benefits of food processing Food pr
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Food Reason for being processed Raw
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ACTIVITY: Class discussion INSTRUCT
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Highly processed foods: • Highly
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preserve it, just like people did 3
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ACTIVITY: Comparing traditional and
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5. Use the space below to draw a fl
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KEY CONCEPTS • Food is processed
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5. A farmer wants to export some gr
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I really enjoyed that, especially l
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• arctic and alpine tundra are in
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A unique South African ecosystem So
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A healthy ecosystem is one in which
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In this man-made forest, there is n
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• insectivores only eat ... can y
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A food web in asavanna. There are a
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• Forest ecosystem: grass, small
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7. When marking out your ecosystem
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2: 3: Animal species: 1: 2: 3: Chap
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interdependent and they are connect
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REVISION: 1. Provide a definition f
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10. What choices do you need to mak
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Did you know that all matter is act
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We would see that the particles in
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3. If you should come into contact,
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In the next table there are 3 pictu
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2. Did they behave dierently? 3. In
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7. What do we call the process when
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We have learnt that materials exist
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A mixture of dierent coloured jelly
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3. Separate the mixture into a pile
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2. Draw a picture of the mixture. 3
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3. Can you separate the mixture int
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INSTRUCTIONS: 1. Place 10 scoops of
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Picture of mixture INSTRUCTIONS (Pa
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REVISION: 1. What is amixture? 2. L
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Now that we know more about mixture
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ACTIVITY: When is amixture also aso
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What is asolution? When two substan
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Wait! How is it possible for one su
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4. What do you think happened to th
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In the previous chapter, we saw how
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4. Which method do you think works
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3. Complete the following sentences
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dissolved limestone can crystallise
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KEY CONCEPTS • A solution is aspe
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4. What was the mixture of sugar an
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It was quite dicult in the beginnin
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changes are called. QUESTIONS: 1. W
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4. What do we call it when we have
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In the first investigation, we will
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3. What did we change in this inves
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RESULTS: The eect of grain size on
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INVESTIGATION: Does stirring increa
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3. What did we change in this inves
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REVISION: 1. What are the 3factors
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We have learnt a lot about solution
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ACTIVITY: Thinking about pollution
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8. How do you think oil ends up in
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Wetlands are not necessarily wet th
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INSTRUCTIONS: 1. Drill ahole in the
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QUESTIONS Do you remember studying
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REVISION: 1. Look at the picture be
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Water is very important for us and
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QUESTIONS 1. What does 'clean water
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ACTIVITY: Cleaning water in astill
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Filtering is agood way of removing
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2. What size and shape will your fi
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MAKE: Now that you have a design, i
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How is water cleaned by municipalit
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STEP 3: AERATION The raw water now
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6. Name the 5steps in the water tre
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Natural Sciences and Technology Grade 6-A - Thunderbolt Kids

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