Class5ScienceGuide

My Science, Health and Physical Education Guide Part 1 - Science Lesson 4 - Monocot and Dicot Plants 1. Fill in the blanks with correct words. Answer 👉  a. Roots help a plant to anchor in the soil. b. Shoot remains above the surface of the earth. c. The outermost part of the flower is called the corolla. d. The male reproductive organ of a flower is called stamen. 2. Match the following. Answer 👉  Column ‘A’ -----------Column ‘B’ a. Female organ -----(d) gynoecium b. Androecium-------- (c) pollen grain c. Calyx------------ (a) green d. Corolla---------- (b) colourful 3. Categorize whether the following plants are monocots or dicots. Answer 👉  mango - dicot apple - dicot pumpkin - dicot wheat - monocot maize - monocot soybean - dicot pea - dicot garlic - monocot orange - dicot paddy (rice) - monocot gram (chickpea) - dicot

My Science, Health and Physical Education Guide Part 1 - Science Lesson 5 - Life Processes of Animals and Plants 1. Fill in the blanks with correct words. Answer 👉  a. Animals get energy from food. b. Plants inhale oxygen gas in respiration. c. Plants take in carbon dioxide gas in photosynthesis. d. Animals and plants help to maintain balance between oxygen and carbon dioxide gas in atmosphere. 2. Make corrections if the following statements are false. Answer 👉  a. False. Plants need water, air, and nutrients from the soil for their growth. b. False. Many animals depend on plants for their living, either directly as herbivores or indirectly as carnivores that eat other animals that have fed on plants. c. False. Not all plants prepare their food by themselves. Some parasitic plants obtain nutrients from other plants, while some non-green plants are unable to produce their own food and rely on other sources of nutrition. d. False. Plants absorb water throug...

My Science, Health and Physical Education Guide Part 1 - Science Lesson 1 - Different Kinds of Animals Exercise 1. Classify the following animals into two groups: ‘animals with backbone’ and ‘animals without backbone’. Answer 👉  Animals with a backbone: Fish Snake Frog Bat Horse Shark Bear Whale Animals without a backbone: Earthworm Spongila Butterfly Snail Leech Hawk Duck Starfish 2. Write two examples of animals of each of the following category. water animals, amphibia, land animals, aves. Answer 👉  Water animals: Dolphin Octopus Amphibians: Frog Salamander Land animals: Lion Kangaroo Aves (Birds): Eagle Penguin 3. Nepalese notes have pictures of different animals. Find what animals are on those notes and also write the categories of those animals. Answer 👉  Nepalese notes have pictures of the following animals: 1 Rupee not e - picture of the Himalayan Monal, a colorful bird found in the Himalayas. Category: Aves (Birds) 2 Rupee note - pictur...

My Science, Health and Physical Education Guide Part 1 - Science Lesson 6 - Effects of Human Activities on Environment 1 Put a tick (√) if the statements are correct and a cross (×) if they are wrong. Answer 👉  a. Polluted air is injurious to health. (√) b. Humans have no role in air pollution. (×) c. Drainage channels should not be mixed in river and ponds. (√) d. Population growth is the main reason of deforestation. (×) e. Terrace farming does not cause erosion. (×) 2. Fill in the blanks with correct words. Answer 👉  a. We should not use water purifying tablets more than required. b. Air gets polluted from exhaust fumes and emissions of the moving vehicle. c. Water gets contaminated from the mixing of water with chemicals from factories into the rivers. d. We should only carry out terrace farming on the sloppy land. 3. Answer the following questions in short. a. What activities of humans cause air pollution? Answer 👉 Activities of humans that cau...

My Science, Health and Physical Education Guide Part 1 - Science Lesson 2 - Cell 1. Tick the (√) true and cross (×) the false statements. a. All the cells do not have similar shape. b. Animal cells have cell wall. c. Vacuole is big and permanent in plant cell. d. Nucleus controls the activities of a cell Answer 👉  a. × (Most cells have similar shape, although there are some exceptions such as nerve cells and muscle cells.) b. × (Animal cells do not have cell walls, but they do have a cell membrane.) c. √ (Vacuole is usually large and permanent in plant cells.) d. √ (The nucleus is the control center of a cell.) 2. Match the following. Answer 👉  a. Vacuole (empty space) b. Chlorophyll (green colour pigment) c. Nucleus (controls the cell activities) d. Cytoplasm (flexible jelly) e. Cell membrane (controls the cell activities) 3. Answer the following questions. a. What is the smallest unit of body of living things? Answer 👉  The smallest unit of ...

 My Science, Health and Physical Education Guide Part 1 - Science Lesson 7 - Environment Conservation 1 Put a tick (√) if the statements is correct and a cross (×) if it is wrong. Answer 👉  a. √ Trees are to be planted to decrease the pollution caused by smoke and dust. b. √ Rivers are to be let flow freely without making embankments. c. √ Forest fire destroys wildlife and plants. d. × Farming is to be done in sloppy land as it is. (Farming should be done in a way that minimizes soil erosion and other environmental impacts.) e. √ Unplanned urbanization increases environmental pollution. 2. Answer the following questions in brief. a. What can be done to protect air from being polluted? Write any two measures. Answer 👉 Two measures to protect air from being polluted are: Reducing vehicular emissions by promoting public transport and using electric vehicles, Controlling industrial emissions by using cleaner production techniques and enforcing strict regulat...

My Science, Health and Physical Education Guide Part 1 - Science Lesson 3 - Lifecycle of a Butterfly 2. Fill in the blanks with correct words. Answer 👉  a. Larva (caterpillar) is voracious stage of the lifecycle of a butterfly. b. The shell that covers pupa is called puparium or cocoon. c. There are four stages in the lifecycle of a butterfly. 3. Answer the following questions. a. What is lifecycle? Answer 👉 Lifecycle refers to the stages of growth and development that an organism goes through from birth to death. b. Write names of any three insects which have four stages in their lifecycle. Answer 👉 Some examples of insects that have four stages in their lifecycle are bees, mosquitoes, and flies. c. Briefly explain the lifecycle of a butterfly Answer 👉 The lifecycle of a butterfly consists of four stages. First, the female butterfly lays eggs on the under surface of leaves. The eggs hatch into larvae or caterpillars in a few days. The caterp...

  Class 5  My Science, Health and Physical Education Guide Part 1 - Science Lesson 8- Change in state of Matter 1. Put a tick (√) if the statements are correct and a cross (×) if they are wrong. Answer 👉  a. There occurs no change in the state of matter by heating or cooling. (×) b. When the solid changes into liquid by heating, it is called melting. (√) c. Camphor changes into liquid when heated. (×) d. When water changes into steam by heating, it is called evaporation. (√) e. When liquid becomes solid by cooling, it is called freezing. (√) 2. Fill in the blanks with correct words. Answer 👉  a. solid b. gas c. heat energy d. freezing e. liquid 3. Write short answers to the following questions. a. How does the change in the state of matter occur? Write with examples. Answer 👉  The change in the state of matter occurs by heating or cooling a substance. For example, when ice (solid) is heated, it changes into water (liquid) and when water i...

My Science, Health and Physical Education Guide Part 1 - Science Lesson 9 - Sources of Energy 1. Put a tick (√) if the statement is correct and a cross (×) if it is wrong. Answer 👉  a. Coal is a renewable source of energy. (×) b. Heat and light are obtained from the Sun and from the burning objects. (√) c. Heat and light can not be obtained from electric energy. (×) d. A magnet attracts the objects made of iron. (√) e. Electricity is generated from the current of moving water. (√) 2. Fill in the blanks with correct words. Answer 👉  a. All the animals get energy from food. b. Plants prepare their food from heat and light energy obtained from the Sun. c. Sound comes from vibrations. d. Iron and steel objects can be identified with the help of a magnet. 3. Answer the following questions in short. a. What is meant by renewable source of energy? Answer 👉 Renewable sources of energy are those sources that can be replenished naturally in a short period of ...

Class 5 My Science, Health and Physical Education Guide Part 1 - Science Lesson 10 Weather 1. Fill in the blank spaces with the correct words. Answer 👉  a. The weather forecast made on the basis of observations taken by satellite is more trustworthy. b. Change in temperature brings change in atmospheric pressure of the Earth. c. Weather is variable from place to place. d. When there is scorching Sun from the morning in the monsoon season, it is likely to rain in the afternoon. e. The light of the Sun does not always fall directly on the Earth. 2. Write answers to the following questions. a. What is called the weather? Answer 👉 Weather refers to the day-to-day changes in atmospheric conditions, such as temperature, humidity, precipitation, wind, and cloudiness, in a particular place. b. List the factors that bring change in weather. Answer 👉 The factors that bring change in weather include temperature, pressure, wind, humidity, and precipitation, wh...

Class 5 My Science, Health and Physical Education Guide Part 1 - Science Lesson 11 - Cloud 1. Put a tick (√) if the statement is correct and a cross (×) if it is wrong. Answer 👉  a. The cloud that looks like fog is stratus. (√) b. Cumulus cloud is found very high in the sky. (×) c. Small drops of water in the water vapour together form cloud. (√) d. The cloud found very low in the sky is brown in colour. (√) 2. Fill in the blanks with the correct words. Answer 👉  a. The cloud which has greater amount of ice is cirrus. b. The water vapour becomes cooler in the atmosphere and form small drops of water. c. The lower part of the stratus is thin. d. Nimbus is dark brown in colour and causes rainfall. 3. Answer the following questions in short. a. How is the cloud formed? write. Answer 👉 Cloud is formed when water from the earth's surface evaporates into the atmosphere due to the heat of the sun. As the water vapor rises, it cools down and forms tiny dro...

Class 5 My Science, Health and Physical Education Guide Part 1 - Science Lesson 12- The Solar System 1. Put a tick (√) if the statement is correct and a cross (×) if it is wrong. Answer 👉  a. The moon is the satellite of the earth. (√) b. The planets have their own light. (×) c. The venus is the smallest planet of the solar system. (×) d. Different creatures live on the earth. (√) e. The process in which the bright portion of the moon increases or decreases is called the phases of the moon (√) 2. Match column ‘A’ with column ‘B’. Answer 👉  a. Planet (earth) ( ) dark night b. Jupiter (the largest planet) ( ) moon c. New Moon ( ) star d. Satellite (moon) ( ) the largest planet ( ) earth ( ) full moon night 3. Fill in the blanks with correct words. Answer 👉  a. The solar system has eight planets. b. The heavenly bodies that moves round the planets are called satellites. c. It takes nearly 365 days for the earth to complete one circle by moving round t...

Class 5 My Science, Health and Physical Education Guide Part 1 - Science Lesson 13 - The Earth  1. Put a tick (√) if the statement is correct and a cross (×) if it is wrong. Answer 👉  a. The weathering of the earth’s surface due to various causes is called soil erosion. (×) b. Mantle is the thickest layer of the earth. (√) c. The plain area surrounded by hills is called valley. (×) d. The rivers cause the weathering of rocks and carry them away to make a pile in plain area. (×) e. Farming without terrace in slopes causes soil erosion in greater quantity. (√) 2. Fill in the blank spaces with the correct words. Answer 👉  a. The monsoon rain makes the soil of the land fertile. b. The causes of the change in the earth’s surface are: wind, water, animals and human activities. c. The monsoon water carries away the surface soil of slopes more easily than that of plain area. d. The rise and fall of the temperature causes expansion and contraction of rocks. ...

Class 5 My Science, Health and Physical Education Guide Part 1 - Science Lesson 14 - Information and Communication 1. Put a tick (√) if the statement is correct and a cross (×) if it is wrong. Answer 👉  a. √ b. √ c. × d. × 2. Fill in the blanks with the correct words. Answer 👉  a. The communication that takes place within the self is called intrapersonal communication. b. Newspapers are periodic publications. c. We can collect information from books, newspapers, etc. d. Computer can function as a means of communication only when it is connected to the internet. 3. Write short answers to the following questions. a. Write the difference between reference materials and general collection. Answer 👉  Reference materials are specific sources of information that are collected for a particular purpose, such as for writing an article or conducting research. General collection, on the other hand, refers to a collection of materials that are not specific...

  Class 5 My Science, Health and Physical Education Guide Part 1 - Science Lesson 15 - Simple Local Technologies 1. Put a tick (√) if the statements is correct and a cross (×) if it is wrong. Answer 👉  a. √ b. √ c. × d. √ 2. Fill in the blanks with the correct words. Answer 👉  a. A wooden stick that is used for moving the upper stone wheel of stone grinding mill is called "gara". b. In improved earthen stove, the surplus smoke goes out of the house through "chimney". c. High "pressure" causes the juice in juicy fruits to come out. d. "Firewood" is used as fuel to cook food in earthen stove. Answer the following questions in short. a. Write the operational theory of hand mill. Answer 👉 The operational theory of hand mill is that the grain is poured into the hopper and then it falls between two discs. These discs rotate against each other to crush the grains and then the crushed grains come out of the mill from the side. b. How d...

Class 5 My Science, Health and Physical Education Guide Part 1 - Health Education Lesson 1 - Personal Cleanliness 1. Match the organs in column ‘A’ with their functions in column ‘B’. Answer 👉  (a) Teeth - (b) help to digest food. (b) Eyes - (c) help to see. (c) Ears - (d) helps to listen. (d) Nose - (a) should be brushed twice a day. 2. Put a tick (√) if the statements is correct and a cross (×) if it is wrong: Answer 👉  a. × (We should not rub our eyes if dust falls in it.) b. × (We should brush our teeth twice a day even if we don't have a toothache.) c. √ (The skin should be cleaned properly.) d. √ (Menstruation does not occur in boys.) e. √ (We should not keep our nails long.) 3. Write answers to the following questions: a. Write names of any five organs of our body. Answer 👉 Five organs of our body are: nose, eyes, ears, teeth, and skin. b. What happens when the hair becomes dirty? Answer 👉 When the hair becomes dirty, it may lead to da...

Class 5 My Science, Health and Physical Education Guide Lesson 2 - Physical exercise, rest and sleep Part 2 - Health Education 1. Complete the following sentences choosing the correct word from the brackets. Answer 👉  a. We need regular exercise for being healthy. b. We should eat a balanced diet for keeping our body healthy. c. Bed room should be clean, well ventilated and silent. 2. Answer the following questions. a. What four things are needed for an individual to be healthy? Write. Answer 👉 Four things that are needed for an individual to be healthy are regular exercise, rest, sleep, and a balanced diet. b. Write any four advantages of physical exercise. Answer 👉 Four advantages of physical exercise are: It helps to make the body organs well-nourished and strong. It increases the digestive power and appetite of the body. It develops qualities like cooperation and teamwork. It helps to improve overall physical and mental health. c. What advantage doe...

  Class 5 My Science, Health and Physical Education Guide Part 2 - Health Education Lesson 3 - Need of Environmental Cleanliness 1. Put a tick (√) if the statements is correct and a cross (×) if it is wrong. Answer 👉  a. √ b. × c. √ d. √ e. √ 2. Write answers to the following questions. a. What is called environment? Answer 👉 Environment refers to the surroundings or conditions in which an individual, plant, or animal lives. b. Why do we need to clean the environment? Write any three reasons. Answer 👉 We need to clean the environment for the following reasons: To prevent the spread of diseases caused by germs and bacteria present in dirty environments. To maintain a healthy and fresh environment, which is necessary for our well-being. To preserve the beauty and natural resources of the environment for the benefit of future generations. c. What things are to be done to manage the wastes  increased together with developmental works? Answer 👉 To...