202110643-PINNACLE-STUDENT-WORKBOOK-SCIENCE-G03-TERM2

by classklap SCIENCE WORKBOOK - TERM 2 Enhanced Edition 3 Name: ___________________________________ Section: ________________ Roll No.: _________ School: __________________________________ PNC_G3_SCI_T2_WB_QC4.indb 1 12-Sep-19 3:19:21 PM

Lesson Name Page No. 1) Food 1 2) Water 8 3) Plants 16 24 Inside the Lab 29 Term Project PNC_G3_SCI_T2_WB_QC4.indb 2 12-Sep-19 3:19:23 PM

Lesson 1: Food Concept Map Food Balanced diet Food nutrients contains all the ______________ (2) in __________________ (1) – energy-giving food the right amount helps in growth and development proteins – body-building foods fats – body’s energy reservoir Meals of the day breakfast – eat in the morning vitamins – protect body from __________ (3) – eat in the afternoon deficiency diseases minerals – regulate the body functions dinner – eat at night Food habits in different places Traditional food Ragi, Thinai, Samai, Kuthiraivaali, ___________ (4) culture Varagu and Kambu availability of food different age groups Home garden cultivation of crops in a small available place in households PNC_G3_SCI_T2_WB_QC4.indb 1 1 12-Sep-19 3:19:24 PM

Remembering Multiple Choice Questions (1M per question) 1) Which of the following protect our body from deficiency diseases? [    ] [    ] (A) proteins (B) fats (C) vitamins (D) minerals 2) Which of the following is a ‘complete balanced diet’?  (A) meat (B) milk (C) carrot (D) rice Fill in the Blanks (1M per question) 3) _____________________ give us energy to work and play. 4) In ___________________ areas, people eat a lot of sea food. Match the Following (5M) 5) a) carbohydrates 6) b) fats 7) c) vitamins 8) d) proteins 9) e) minerals Ans. ________________________________________________________________________________ 2 12-Sep-19 3:19:32 PM PNC_G3_SCI_T2_WB_QC4.indb 2

Very Short Answer Questions (1M per question) 10) Name the nutrient that an egg contains. Ans. ________________________________________________________________________________ 11) How long should we wash our hands for before eating food? Ans. ________________________________________________________________________________ 12) What are the meals in a day? (Textbook, Pg. 47) Ans. ________________________________________________________________________________ 13) What are some traditional food items? (Textbook, Pg. 47) Ans. ________________________________________________________________________________ Understanding Very Short Answer Questions (1M per question) 14) Where should we keep a cold-drink bottle, at the top or bottom of the food pyramid? Ans. ________________________________________________________________________________ 15) What do you eat in the morning, breakfast or lunch? Ans. ________________________________________________________________________________ 16) What is a balanced diet? (Textbook, Pg. 47) Ans. ________________________________________________________________________________ ________________________________________________________________________________ 17) Which of the following regulates body function, a pear or a carrot? Ans. ________________________________________________________________________________ Food 3 PNC_G3_SCI_T2_WB_QC4.indb 3 12-Sep-19 3:19:34 PM

Short Answer Questions (3M per question) 18) How many nutrients are there? What are they? (Textbook, Pg. 47) Ans. ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ 19) Why do we need food? Ans. ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ 20) Differentiate between carbohydrates and proteins and give suitable examples. Ans. Carbohydrates Proteins 21) Classify the following into ‘Body’s energy reservoir’ and ‘Body-building food’. milk, ghee, oil, sprouted seeds, nuts Ans. Body’s energy reservoir Body-building food 4 12-Sep-19 3:19:34 PM PNC_G3_SCI_T2_WB_QC4.indb 4

Long Answer Question (4M per question) 22) Explain a food pyramid. Ans. ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ Application Short Answer Questions (3M per question) 23) Siva is 6 years old. He needs to have a good amount of proteins. Give reasons for this. (Textbook, Pg. 47) Ans. ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ 24) Write any three advantages of a Home Garden. (Textbook, Pg. 47) Ans. ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ Food 5 PNC_G3_SCI_T2_WB_QC4.indb 5 12-Sep-19 3:19:34 PM

Higher Order Thinking Skills (H.O.T.S.) Short Answer Question (3M per question) 25) In Goa, sea food is famous. Why? Ans. ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ Long Answer Question (4M per question) 26) Here are some food items. Arrange them in the food pyramid. a) b) c) d) e) f) g) h) i) j) k) m) n) o) l) 6 12-Sep-19 3:19:48 PM PNC_G3_SCI_T2_WB_QC4.indb 6

Ans. Food 7 PNC_G3_SCI_T2_WB_QC4.indb 7 12-Sep-19 3:19:48 PM

Lesson 2: Water Concept Map Water Potable water Water - A primary source of life free from dangerous chemicals All _____________ (1) organisms need water. Rain is the main source of water. transparent, odourless and _______________ (2) Save water Only 3% of the water on the Earth is free from disease-causing bacteria freshwater. Prevent the wastage of water. Sources of drinking water rain, well, river, lake and ____________ (3) Problems due to stagnated water Conservation of water bodies lake, pond, reservoirs, tanks Mosquitoes transmit Malaria and Dengue fever. Methods to conserve water bodies deepening of ponds and lakes waterborne diseases – cholera, dysentery, typhoid planting trees on the banks of lakes and ponds reducing water ______________ (4) avoiding digging too many wells in a region 8 12-Sep-19 3:19:49 PM PNC_G3_SCI_T2_WB_QC4.indb 8

Remembering Multiple Choice Questions (1M per question) 1) What percentage of water on the Earth is freshwater? [    ] (A) 1    (B) 3 (C) 25    (D) 50 2) Which of the following activities does not need water? [    ] (A) washing clothes  (B) writing  (C) growing plants  (D) brushing teeth Fill in the Blanks (1M per question) 3) World Water Day is observed on _________________. 4) We need water to _____________ our food. Match the Following (5M) 5) a) pond 6) b) reservoir 7) c) tank 8) d) rain 9) e) lake Ans. ________________________________________________________________________________ Water 9 PNC_G3_SCI_T2_WB_QC4.indb 9 12-Sep-19 3:19:53 PM

Very Short Answer Questions (1M per question) 10) Where is the Sathiyamoorthy reservoir located? Ans. ________________________________________________________________________________ 11) Write any three different sources of water. (Textbook, Pg. 57) Ans. ________________________________________________________________________________ 12) Write any two diseases that are spread by mosquitoes. (Textbook, Pg. 57) Ans. ________________________________________________________________________________ 13) Name any two waterborne diseases. Ans. ________________________________________________________________________________ Understanding Very Short Answer Questions (1M per question) 14) What is the colour of potable water? Ans. ________________________________________________________________________________ 15) What should be done to kill the germs in water? Ans. ________________________________________________________________________________ 16) What is a lake? Ans. ________________________________________________________________________________ ________________________________________________________________________________ 17) How can we save water while washing fruits and vegetables? Ans. ________________________________________________________________________________ ________________________________________________________________________________ 10 12-Sep-19 3:19:54 PM PNC_G3_SCI_T2_WB_QC4.indb 10

Short Answer Questions (3M per question) 18) Write the symptoms of dengue. (Textbook, Pg. 57) Ans. ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ 19) Why is water known as primary source of life? (Textbook, Pg. 57) Ans. ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ 20) What type of water is considered to be potable? Ans. ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ 21) Classify the following activities based on whether water is needed or not for these activities. to grow a plant to dance to write to cook food to run a fan to wash a dress Ans. Activities that need water Activities that do not need water Water 11 PNC_G3_SCI_T2_WB_QC4.indb 11 12-Sep-19 3:19:54 PM

Long Answer Questions (4M per question) 22) List out the ways to conserve water bodies. (Textbook, Pg. 57) Ans. ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ 23) Number the pictures from 1 to 4, with 1 being the activity that needs the most water and 4 being the activity that needs the least water. Ans. 12 12-Sep-19 3:19:56 PM PNC_G3_SCI_T2_WB_QC4.indb 12

Application Short Answer Questions (3M per question) 24) Suggest some ways to save water at home. (Textbook, Pg. 57) Ans. ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ 25) How will you avoid wastage of water in your school? (Textbook, Pg. 57) Ans. ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ Higher Order Thinking Skills (H.O.T.S.) Short Answer Question (3M per question) 26) Write some slogans to save water. (Textbook, Pg. 57) Ans. ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ Water 13 PNC_G3_SCI_T2_WB_QC4.indb 13 12-Sep-19 3:19:56 PM

Long Answer Questions (4M per question) 27) Here are some images. Put a  mark on the image that shows conservation of water and put a  on the activity that does not help in conserving water. Mention the points below each picture to conserve water. Ans. ____________________________ ____________________________ ____________________________ ____________________________ ____________________________ ____________________________ ____________________________ ____________________________ 14 12-Sep-19 3:20:13 PM PNC_G3_SCI_T2_WB_QC4.indb 14

28) Collect pictures of different things that are used to store drinking water and paste and name them in the box given. Ans. Water 15 PNC_G3_SCI_T2_WB_QC4.indb 15 12-Sep-19 3:20:13 PM

Lesson 3: Plants Concept Map Plants Habitats Parts of plants Aquatic or water plants Roots free-floating plants – water hyacinth, pistia taproots – carrot, turnip fixed rooted plants – water lily, lotus ____________ (1) roots – grass, wheat submerged plants – vallisneria, hydrilla Functions of roots Terrestrial or land plants fixation absorption plants in deserts – date palm, aloe vera storage of food plants on mountains – pine tree Stems plants in the _________ (2) – mango, banyan plants in coastal areas – coconut tree weak stems – coriander, mint strong stems or trunk – peepal, banyan Leaves Functions of stems Leaves are flat, thin and green. Leaves have different shapes, sizes, colours and smells. support transport of food Parts – apex, lamina, midrib, petiole storage of excess food Functions of leaves Flowers Leaves prepare _________ (3) by photosynthesis. Flowers have different shapes, sizes, colours and fragrances. Transpiration happens through leaves. Parts – stamen, pistil, ___________ (4), sepal Some plant leaves are edible. Functions of flowers Fruits and seeds development into fruits The fruit is the fleshy part of the plant. helping the plant to reproduce Fruits have seeds. Functions of seeds New plants grow from seeds. 16 PNC_G3_SCI_T2_WB_QC4.indb 16 12-Sep-19 3:20:14 PM

Remembering Multiple Choice Questions (1M per question) 1) Which of the following is an example of a taproot? [    ] [    ] (A) paddy (B) mango (C) onion (D) grass 2) Identify the seedless fruit among the following. (A) pear (B) apricot (C) orange (D) pineapple Fill in the Blanks (1M per question) 3) The natural home of a plant is called its ________________. 4) In fixed rooted plants, the leaves are broad and coated with _________. Match the Following (5M) 5) a) deserts 6) b) mountains 7) c) plains 8) d) coastal areas 9) e) water Ans. ________________________________________________________________________________ Plants 17 PNC_G3_SCI_T2_WB_QC4.indb 17 12-Sep-19 3:20:20 PM

Very Short Answer Questions (1M per question) 10) Name the types of roots. (Textbook, Pg. 70) Ans. ________________________________________________________________________________ 11) Write the parts of a flower. (Textbook, Pg. 70) Ans. ________________________________________________________________________________ 12) Write the names of some water plants. (Textbook, Pg. 70) Ans. ________________________________________________________________________________ 13) Name two free-floating plants. (Textbook, Pg. 70) Ans. ________________________________________________________________________________ 14) Give two examples of fruits which have only one seed. (Textbook, Pg. 70) Ans. ________________________________________________________________________________ 15) Give two examples of fruits which have many seeds. (Textbook, Pg. 70) Ans. ________________________________________________________________________________ 16) Name the parts of a plant. (Textbook, Pg. 70) Ans. ________________________________________________________________________________ Understanding Very Short Answer Questions (1M per question) 17) Name the types of plants based on their habitat. (Textbook, Pg. 70) Ans. ________________________________________________________________________________ 18) Which part of the plant transports food from the leaf to various parts of the plant? Ans. ________________________________________________________________________________ 19) Why do trees in mountains have a conical shape? Ans. ________________________________________________________________________________ 18 12-Sep-19 3:20:21 PM PNC_G3_SCI_T2_WB_QC4.indb 18

20) How do plants submerged in water breathe? Ans. ________________________________________________________________________________ Short Answer Questions (3M per question) 21) Write any two functions of the leaves. (Textbook, Pg. 70) Ans. ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ 22) Write any two adaptations of desert plants. (Textbook, Pg. 70) Ans. ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ 23) Write any three differences between the plants in deserts and plants in plains. Ans. Plants in deserts Plants in plains 24) Why is leaf called food factory of the plant? (Textbook, Pg. 70) Ans. ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ Plants 19 PNC_G3_SCI_T2_WB_QC4.indb 19 12-Sep-19 3:20:21 PM

Long Answer Questions (4M per question) 25) Differentiate between taproot and fibrous root. (Textbook, Pg. 70) Ans. Taproot Fibrous root 26) Explain the functions of the part of the plant that grows under the soil. Ans. ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ 20 12-Sep-19 3:20:21 PM PNC_G3_SCI_T2_WB_QC4.indb 20

Application Short Answer Questions (3M per question) 27) Look at the picture of a water lily. a) Which parts of the plant can you see? b) Where are the plant‛s roots and stem? (Textbook, Pg. 70) Ans. ________________________________________________________________________________ ________________________________________________________________________________ 28) Draw a picture of a flower and label its parts. Ans. Plants 21 PNC_G3_SCI_T2_WB_QC4.indb 21 12-Sep-19 3:20:24 PM

Higher Order Thinking Skills (H.O.T.S.) Short Answer Question (3M per question) 29) In a plant, part ‘A’ transports water from the root to various parts of the plant, transpiration happens through part ‘B’ and part ‘C’ develops into the fruit. Identify ‘A’, ‘B’, and ‘C’. Ans. ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ Long Answer Question (4M per question) 30) Collect pictures of edible roots, stems and leaves and paste them in the following boxes. Ans. Edible roots 22 12-Sep-19 3:20:24 PM PNC_G3_SCI_T2_WB_QC4.indb 22

Edible stems Edible leaves Plants 23 PNC_G3_SCI_T2_WB_QC4.indb 23 12-Sep-19 3:20:24 PM

Inside the Lab Activity 1: Same Food Items Go Together We have learnt about the different components of food. Can you recollect them? They are carbohydrates, proteins, fats, vitamins and minerals. Let us now try to group food items according to the components. You will need: five sheets of paper, pictures of different types of food items and sticky notes. You need to: a) divide the learners into five groups. b) provide each group with a sheet of paper and ask them to make five columns on the sheet. Each column will be named as a component of food, such as carbohydrates, fats, and so on. c) shuffle the pictures of food items and provide each group with an equal number of pictures. d) ask each group to identify which picture belongs under which component of food. Based on this, ask the groups to paste the pictures in the correct columns. e) remind learners that a few food items may belong to two or more components. In such cases, learners can add a sticky note to mention the other component/s. 1) Why is it important to eat a balanced diet? Ans. __________________________________________________________________________________ __________________________________________________________________________________ __________________________________________________________________________________ __________________________________________________________________________________ __________________________________________________________________________________ __________________________________________________________________________________ 24 12-Sep-19 3:20:26 PM PNC_G3_SCI_T2_WB_QC4.indb 24

2) Mention the name of some food items for lunch that can make up a balanced diet on the plate given. Ans. PNC_G3_SCI_T2_WB_QC4.indb 25 25 12-Sep-19 3:20:27 PM

Activity 2: Leaves Leaves Everywhere! We know that plants have leaves. Let us now collect the leaves of different plants and make a colourful leaf journal. You will need: a paper bag, chart paper, two sheets of plain paper, a pencil, an eraser and a set of coloured pencils or crayons. You need to: a) take a paper bag and collect as many types of leaves as you can. b) make sure that you pick 3–4 leaves of the same plant. c) trace the shapes of the leaves that you have collected on a chart paper. d) colour the leaves with your favourite colours. Trace and paint leaves e) show your colourful leaf journal to your friends. Alternatively, you can try leaf rubbing. For this, you need to: a) keep the leaf in between two sheets of paper. b) then, gently rub a crayon all over the leaf. Repeat the same using another leaf. Leaf rubbing 26 12-Sep-19 3:20:27 PM PNC_G3_SCI_T2_WB_QC4.indb 26

1) Draw a leaf and label the parts. Ans. PNC_G3_SCI_T2_WB_QC4.indb 27 27 12-Sep-19 3:20:27 PM

2) Write the functions of leaves. Ans. ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ 28 12-Sep-19 3:20:27 PM PNC_G3_SCI_T2_WB_QC4.indb 28

Term Project 1) a) Design your own plant! Collect parts from different plants, paste them in the given box, and create your own plant. Ans. PNC_G3_SCI_T2_WB_QC4.indb 29 29 12-Sep-19 3:20:28 PM

b) Write the functions of the parts of plant. Ans. ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ 30 12-Sep-19 3:20:29 PM PNC_G3_SCI_T2_WB_QC4.indb 30