Lesson (1) The cell The basic unit of structure and function

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1 Cairo Governorate Department : Science Nozha Directorate of Education Form : 4 th. Primary Nozha Language Schools Second Term Ismailia Road Branch Lesson (1) The cell The basic unit of structure and function A) Complete the following sentences : 1. The human living body consists of group of 2. The system consists of a group.. 3. The organ consists of a group of.. 4. The tissue consists of similar. 5. All cells contain,.. and. 6. The function of the nucleus is the.. operations inside the cell and it is in charge of cell division. 7. The plasma membrane... the substances entering into the cell or leaving it. 8. The plant cell is surrounded by... while the animal cell is surrounded by.. 9. The plant cell and the animal cell are similar in the presence of..,...and The plant cell is characterized than the animal cell by the presence of and fills the cell and all the biological operations occur in it. 12..are responsible for making food by photosynthesis process. 13. The building unit of the living organism is called. 14. Mark ( ) in the suitable place 1- Cell wall 2- cell membrane 3- nucleus 4- cytoplasm 5- chloroplast Cell parts Plant cell Animal cell -1-

2 15. bacteria and yeast are.. organism. 16. Yeast fungus is unicellular organism that made up of.., and. 17. The fungus has a great. value. 18. Yeast fungus is used in a lot of industries such as Group of cells form.. and group of tissues form an.. and group of organs form B) Put ( ) or ( ) and correct the wrong ones : 1. The human living body consists of group of systems. [ ] 2. The system consists of a group of organs. [ ] 3. The organ is a group of cell. [ ] 4. The organ is a group of tissues. [ ] 5. The tissue is a group of similar cells. [ ] C) Choose the correct answer: 1. is the building unit of the animal body a) The plant cell b) The animal cell c) The animal tissue d) The animal organ 2. Which of the following is present in plant cells, but absent in animal cells? a) cell membrane b) cell wall c) nucleus d) a, b, c 3. The cell is divided by the help of. a) cytoplasm b) nucleus c) chloroplasts d) cell wall 4...controls the substances that enter or leave the cell a) Cell wall b) Plasma membrane c) Cytoplasm d) Nucleus 5. is a fluid in which all the cell components are suspended a) cytoplasm b) Nucleus c) Chloroplasts d) Cell wall D) Give reason for 1- Your mouth is always wet... 2-Molars make the swallowing of food easy... 3-When we chew a piece of bread well its taste becomes sweety food must be digested. -2-

3 E) Examine the figures in front of you The figure is.. 1) 2) 3) 4) 5) 6) The figure is.. 1) 3 2) 3) -3-

4 Lesson (2) Human digestive system I) Complete the following sentences : 1. A living organism body made up of a set of. 2. The function of the digestive system is... the food. 3. Digestion is the changing of food from into. 4. The digestive system of the human body is divided into The Digestive canal consist of..,,,,. and The digestive canal supplementaries (associates ) are,. and.. 7. The mouth is a. where..,. and. existed. 8. The teeth number in adult are, each Jaw has 9. The teeth are divided into (4).. and (2 ) and (10 ) 10. The function of canines is. the food. 11. Molars. the food. 12. The function of the tongue is. the food with The number of salivary glands is.. pairs. 14. The salivary glands secrete a liquid known as.. which contains.. called enzymes Saliva digests into Pharynx is a..cavity leads to esophagus and trachea. 16. Oesophagus is a.. tube that the food travels through from mouth to Stomach is a sac. 18. Stomach. food by the digestive Juices. 19. In the stomach digestion of protein takes place by gastric juice. 20. The length of the small intestine is & starts with apart known as. 21. Duodenum is followed by. 22. Intestinal Juice is poured in the In the small intestine digestion is.. -4-

5 24. Digested food is.. through the small intestine walls & reaches. 25. Large intestine starts from the end of the.. & ends with Water is absorbed in. 27. Wastes are rejected outside the body through the How can you keep your digestive system healthy II) Put ( ) or ( ) and correct the wrong : 1. A living organism body consists of a set of systems. [ ] 2. The function of the digestive system is the digestion of food. [ ] 3. Digestion of food is changing food to complex substances. [ ] 4. The digestive system of the human body is divided into stomach and mouth.[ ] 5. The digestive canal consists of mouth, pharynx, esophagus, stomach, small intestine and large intestine. [ ] 6. The digestive canal supplementaries (associates ) are liver, and pancreas only.[ ] 7. Teeth number in adult is 32. [ ] 8. The function of the tongue is cutting food. [ ] 9. The salivary glands secrete a liquid known as saliva. [ ] 10. Pharynx is a common tube. [ ] 11. In the stomach incomplete digestion of protein takes place. [ ] 12. In the small intestine the digestion process is completed. [ ] 13. The digested food is absorbed through mouth. [ ] 14. Water is absorbed in the large intestine. [ ] 15. You mustn't chew food well. [ ] 16. You must eat much food contains fats. [ ] -5-

III) What is the function of : 1. Bile Juice... 2.

6 III) What is the function of : 1. Bile Juice Stomach.. 3. Salivary glands.. 4. Canines.. 5. Molars.. 6. Liver.. 7. Pancreas.. IV)Examine the figures in front of you

7 Complete the following sentences : Lesson ( 3 ) The Human respiratory system 1. The human respiratory system consists of.,,., and 2. Respiration process is.. 3. Nose is lined with. layer & hair to dust and 4. Trachea is a tube supported with.rings that make it 5. Nose contains..to warm the air. 6. Trachea is lined with.. to prevent the strange objects ,. are at the top of trachea. 8.. closes off the opening of trachea during swallowing. 9. The trachea branches into two narrow tube called Bronchus is ended by. which surrounded by a network of blood capillaries in where gas.. occurs. 11. The two lungs occupy the. cavity separates the thoracic cavity from abdominal cavity. 13. Through inhalation process the diaphragm muscle. And moves.. an dribs move and thoracic cavity. 14. Through inhalation process the air rich in.. enters the two lungs through the Through exhalation the diaphragm muscle.. and moves andribs move and thoracic. 16. The air rich in... moves outside the lunge through nasal cavity in exhalation process. 17. Exhaled air contains carbon dioxide and. 18. The products of respiration process are. and. 19. How can you keep your respiratory system healthy

8 II) Explain the following : 1. Breathing through the nose is preferable than breathing through the mouth Exhaled air is different from inhaled air... III) Write the scientific term : 1. The system through which respiration process takes place. 2. It is a tube supported with cartilaginous rings. 3. They are at the top of trachea. 4. The organ which ended with alveoli. 5. It is the process in which the diaphragm muscle contracts and moves down. 6. It is the process in which the diaphragm muscle relax and moves up. 7. It is the process which occurs between the air in alveoli and the blood follows in the capillaries. -8-

9 Lesson (4) The importance of sunlight to living organisms I)Complete the following sentences : 1. Plant cells contain... which give the plants the green color and sunlight. 2. Plants absorb the light energy of the sun, water,and. and. from the air in order to form their food, this process is known as. 3. Sunlight is necessary for plants to make 4. Plants make their food through the process of. in the presence of.,. and 5. Oxygen is released during the process of.. 6. Producers are the living thing that. their food by themselves through the process of.. 7.., and. are examples of producers. 8. Consumers are living organisms depending on.. to get their food. 9.,..,. are examples that feed on producers ( green plants ). 10. The lion & snake feed on The decomposers are living organisms which can't make their, because. are not existed in their cells. 12. The decomposers get their food through decomposing of the.. wastes such as ,.. are examples of decomposers. 14. Importance of the decomposers : Types of living things according to their feeding.,.., and 16.. and. are producers and. are consumers. 18. and. are decomposers -9-

10 II)Give reasons for : 1. Decomposers have a great economical and environmental importance. 2. There are chloroplasts in the cells of producers. III)Put ( ) or ( )and correct the wrong ones : 1. Plant cells contain chloroplasts. [ ] 2. Plants absorb light energy of the sun. [ ] 3. Photosynthesis process is not important for plants. [ ] 4. Plants can't make their own food. [ ] 5. Oxygen is released during photosynthesis process. [ ] 6. Starch is formed by plants. [ ] 7. Producers are living things that can make their own food. [ ] 8. Plants are producers. [ ] 9. Algae and green plants are producers. [ ] 10. Animals & human are decomposers. [ ] 11. Fungi, bacteria are considered as decomposers. [ ] 12. Animals & human are consumers. [ ] IV) Write the scientific term : 1. The type of living organisms that can make their own food. [ ] 2. Living organisms depending on producers to get their food. [ ] 3. They are living organisms that can't make their food. [ ] -10-

11 Lesson (5) Energy paths through living organisms I) Complete the following sentences : 1. All living organisms need food as a source of produce food and depend on these plants to get food. 3. Some. and.. get their food through decomposing plants and animals after their death. 4. The food chain is a path that the.transmits in a form of food from a living organism to. one. 5. The food chain begins with. then. then. 6. The food web is a group of overlapping.. representing the flow of 7. The producers such as. make their own food using the energy and store in the form of 8. When the consumers such as or. feed on plants the stored energy in these plants transfers into.. 9. By the death of consumers, the energy transfers into the. through. 10. Energy paths are paths show the energy transference in the form of. from.. into another within the food web feed on the organic remains. 12. The living organism which makes its own food is known as The producers gets the energy from Human being is considered as in the food chain. 15. In the green plants, energy is changed into. energy stored in a form of food. -11-

12 II) Give reasons for : 1. All the food chains begin with producers. 2. The green algae are considered as producers. III) Form a food chain ending by you. IV) What happens in each of the following cases : 1. The absence of chloroplasts from the corn plant cells. 2. The absence of decomposers from nature. V) Write the scientific terms : 1. It is a path that the energy transmits in a form of food. 2. It begins with producers then herbivore consumer then carnivores. 3. It is a group of overlapping food chains. 4. They are paths show the energy transference in the form of food. 5. The path of energy transference in the form of food from a living organism to another. -12-

13 Unit Two Lesson (1) Source of energy I) Complete the following sentences : 1. Sun provides us by. and 2. Plants depend on the in making their food. 3. Sun is responsible for the formation of.,..and is considered as main source of energy. 5. is necessary for growth of plants and human life. 6. is responsible for the evaporation of water of seas, oceans and rivers forming.. and this is the reason of.. of wind that change clouds to rain., 7. The Sun is responsible for the.. of water of seas, oceans and rivers forming clouds. 8. is the reason of motion of wind that change clouds to rain. 9. The sun is the main reason in the formation of, 10. is the main source of energy on earth's surface cell changes light energy into electric energy directly. 12. Solar cell changes light energy into energy directly. 13. heaters change solar energy into heat energy. 14. Solar heaters are used for warming and of water. 15. Solar heaters change.. energy into.. energy. 16. is one of the main factors in the formation of fuel that is used in machines operation. 17. From the benefits of solar energy : The sources of energy are divided into Renewable sources of energy such as Non renewable sources of energy such as

14 21. A lot of machines and means of transport depend on the non- renewable resources of energy like..,.., and Cars work by or Aeroplanes work by Irrigation machines work by. 25. is one of the cleanest forms of fuel. II) What are the uses of : 1- Wind energy 2- Rising and ebb tides energy 3- Water falls energy -14-

15 I ) Complete the following sentences : Lesson (2) The electricity 1. Most of equipment at home work by such as. and. 2. The equipment which work by electricity need wires to connect them by electricity and this type of electricity is called. electricity. 4.. electricity doesn't flow in wires. 5. There are some phenomena related to static electricity such as : Static electricity is formed from.. charges that remain on an object. 7. On rubbing a balloon by a piece of wool,.. changes are formed on its surface and attract. to them. 8. On.. a balloon by apiece of wool, electric changes are formed on its surface and attract sugar to them. 9. Rubbing of objects generates... electricity. 10. of objects generates static electricity. 11. Before rubbing the ruler, there is no changes on the ruler, while after the rubbing. changes are formed on ruler that attract the small bits of. to them. 12. electricity are electric charges flow through connecting wires for long-distance. 13. Current electricity are electric charges flow through connecting for long distances. 14. The battery pushes electric charges in. that reaches to the lamp causing its is the source of electric current. 16. The battery is the source of current is used to close and open the electric circuit. 18. The switch is used to. and... the electric circuit. 19. The wires are used to transfer current from battery to. -15-

16 20.. are used to transfer electric current from battery to lamp. 21. The electric circuit is the path of. current is the path of electric current. 23. The electric equipments used at home,.,.., is movable electric charges is the path of electric current. 26. Most of equipments at home work by. 27. electricity is the electric charges that remain on an object. II) Write the scientific term : 1. It is formed from electric charges that remain on an object. [ ] 2. They are electric charges flow through connecting wires for long distances. [ ] 3. It is the source of electric current. [ ] 4. It is used to close and open the electric circuit. [ ] 5. They are used to transfer electric current from buttery to lamp. [ ] 6. It is the path of electric current. [ ] III) What happens in the following? 1. Rubbing your hair by a plastic comb. 2. Rubbing a plastic ruler by a piece of wool. 3. Rubbing a flattened balloon by a piece of wool then closing it to your hair. 4. Removing the battery from a closed electric circuit. 5. The sun is absent

17 IV) Give reasons for : 1. Attracting the small bits of paper to a ruler that was rubbed to your hair. 2. Attracting a balloon rubbed by the wool to a wall. V) Write the scientific term : 1. It is the main source of energy on the surface of Earth. [ ] 2. It is the energy that renews itself. [ ] 3. It is the energy that can't renew itself. [ ] 4. Source include wind tide ebb and water falls. [ ] 5. Source include coal, petroleum and natural gas. [ ] 6. It provides us with heat to warm our bodies. [ ] 7. It helps the plant to make its food. [ ] 8. A fuel from the cleanest non renewable resource of energy. [ ] VI) Put ( ) or ( ) and correct the wrong ones : 1. Sun is the main source of energy on the surface of earth. [ ] 2. Plant grows in the presence of sunlight. [ ] 3. Wind is one of non- renewable resources of energy. [ ] 4. Sun and petroleum are from renewable resources of energy. [ ] 5. Car motor works by natural gas or benzene. [ ] VII) How we obtain electricity from : Sun. Moon.. Water falls and wind. -17-

18 Cairo Governorate Nozha Directorate of Education Nozha Language Schools Ismailia Road Branch Department: Science Form : 4 th Prim. Question ( 1 ): A) Complete the following sentences:- 1- The liver secretes. that helps to digest fats while salivary gland secretes..that contains enzymes to digest the starch. 2- The types of electricity are static and process takes place in the green parts of the plants to make its own food. 4- Eating fruits rich in vitamin (C) keeps our.. system healthy. 5- Solar heaters change.. energy to. energy that is used for heating of water. 6- The living organisms which are responsible for decomposing the remains of living organisms are known as. 7- All cells contain.., cytoplasm and Question ( 2 ): A) Choose the correct answer:- 10 Marks 10 Marks 1-.. is the path that shows the energy transference in the form of food from a living organism to another. a) Food web b) Energy path c) Food chain d) All the pervious 2- All the following are found in the yeast fungus except a) nucleus b) cell wall c) cytoplasm d) chloroplast 3- is used to close and open the electric circuit. a) Battery b) Lamp c) Wire d) Switch 4- is a common cavity that leads to esophagus and trachea. a) Nose b) Pharynx c) Lungs d) Bronchi B) Classify the following living organism into producer, consumer or decomposer:- 1- Rabbit : 2- Bacteria :.. 3- Wheat plant : 4- Hawk :

Question ( 3 ): A) Put ( ) or ( ) :- 10 Marks 1- The food chain begins with consumers. ( ) 2- Coal is a renewable resource of energy. ( ) 3- The nose has blood capillaries to warm the air.

19 Question ( 3 ): A) Put ( ) or ( ) :- 10 Marks 1- The food chain begins with consumers. ( ) 2- Coal is a renewable resource of energy. ( ) 3- The nose has blood capillaries to warm the air. ( ) 4- Sun provides us with heat and light energy. ( ) 5- Diaphragm closes the trachea during swallowing. ( ) B) The opposite drawing represents a part of the.. system: 1) Complete the labels of the diagram. a-.. b-.. c-.. 2) What is the importance of organ no. ( C )?..... Question ( 4 ) : A) write the scientific term:- 10 Marks 1- The main source of energy on the earth s surface. [..] 2- A group of food chains representing the flow of energy through living organisms. 3- A process carried out by human to get energy from the digested food. [..] [..] 4- A muscular sac in which the incomplete digestion of protein takes place. [..] B) Correct the under lined words:- 1- The building unit of man and animals body is the organ. 2- The electric energy is responsible for the evaporation of water of seas and rivers to form clouds. 3- The large intestine consists of duodenum and ileum. 4- Cooling of objects generates static electricity. With best wishes -19-

Form 4. The vision of the school: Distinct Environment for Refined Education. Primary four 2017 /

Form 4. The vision of the school: Distinct Environment for Refined Education. Primary four 2017 / The vision of the school: Distinct Environment for Refined Education Primary four 2017 / 2018-1- Lesson one :- Complete:- The cell The basic unit of Structure and function 1- The building unit of animals