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 is called 2- The cell consists mainly from..,., 3- Animal cell is surrounded from outside by.. while plant cell is surrounded by. 4- Yeast fungus contains nucleus, and a wall that determines the. 2- Give reasons for:- 1- There are chloroplasts in plant cell? 2- Animal cells differ in shape & size... -2-
3- Write the scientific term:- 1- It surrounds the cytoplasm in the plant cells. (...) 2- The building units of living organisms. (...) 3- A group of similar cells. (...) 4- Mention one function for each of the following:- 4- Green plastids 5- Plasma membrane.. [5] Compare between animal cell and plant cell Animal cell Plant cell -3-
Lesson two:- The digestive System [1] Complete:- 1- The digestive system consists of & 2- Liver secretes in the.. 3- The total number of teeth in adult is.. in each jaw. 4- Digestion of proteins in and digestion of starch begins in. 5- Salivary gland are pairs and secret a liquid known as [2] What is the function of each of the following:- Bile juice:. Tongue :.. The liver:. -4-
[3] Give the scientific term :- -5-1- It is secreted in the mouth to change starch to simple sugar. ( ) 2- The transfer of the digested food to the blood. ( ) 3- The organ which secretes bile in the small intestine. ( ) 4- It is tube which the food passes through, begins with the mouth & ends with the anus. ( ) [4] Give reason for:- 1- Oil soluble in water when you add some bile to it. 2- When you chew a piece of bread you feel a sweet taste. 3- Liver helps in the diction of fats? [5] How do you keep the digestive system healthy?..
Lesson three:- Respiratory System [1] Complete:- 1- Fish respires the dissolved Oxygen in water through 2- During exhalation the volume of chest cavity & the air comes out of the lungs. 3- The nose contains..that worm the air. [2] Give reason for:- 1- Air sacs are surrounded by blood capillaries. 2- It is preferred to breathe through the nose not through the mouth. 3- During swallowing, the food doesn't enter the trachea. -6-
[3] Write the scientific term:- 1- It separates the thoracic cavity from the abdomen. (... ) 2- A process by which oxygen enters the lungs. (... ) 3- The organ that closes the trachea during swallowing of food.. (... ) [4] Compare between inhalation process and exhalation process in the mechanism of respiration. Inhalation process Exhalation process [5] Mention the function of the following:- 1- The cilia in the trachea. 2- The epiglottis. -7-
Lesson four :- The importance of sunlight to living organisms [1] Complete:- 1- During testing for starch we put the green leaf in alcohol to 2- We can test for starch by using. 3- During photosynthesis gas is released and. gas is used. 4-.. gas is necessary for plant to respire while gas is necessary to make photosynthesis. [2] Classify the following organisms according to the way of their feeding:- 1- Lion:- 2- Bread mold fungus: 3- Green plants:- [3] Give reasons :- 1- Green plants are called producers. 2- Decomposers have a great economical and environmental importance. 3- Dogs and Cats are called consumers -8-
[4] Choose the correct answer:- 1- During photosynthesis process gas is evolved. a) nitrogen b) oxygen c) carbon dioxide 2- Which of the following living organisms is not producers of food a) green algae b) fungus c) wheat plant 3- From the example of the producers. a) fish b) rabbit c) bean 4- The algae is from a) producer b) consumers c) decomposers 5- The plants make their own food in the process of a) respiration b) photosynthesis c) circulation -9-
Lesson two :- Forms of energy [1] Complete:- 1- Energy is the ability to do 2- From forms of energy.., and.. 3- Sound is produce due to of objects. 4- On rotation of spring energy changes into energy. 5- When rub your hands together.. energy changes into energy. 6- By magnifying lens,. Energy changes into.. energy. [2] What happen when? 1- Sun rays falls on the lens that put over a paper?. 2- Rub your hand together?. 3- A piece of rubber is pulled and fixed from its ends then leaving it? -10-
[3] Write the scientific term:- 1- The energy that produced from vibration of object. (.) 2- The ability to do work. (.) 3- Tool used to change light energy to heat energy. (.) 4- Tool that used to change light energy to kinetic energy. (.) 5- Equipment that change electric energy into electric energy. (.) -11-
Lesson four:- The electricity [1] Complete:- 1- Types of electricity are.. electricity and. Electricity. 2- From home equipments that works by electricity are. and.. 3- The components of electric circuit are.,.., and 4- Current electricity is the.. flow through connecting wires for.. distance. 5- Rubbing objects generates. electricity. 6- In the electric circuit. is the source of electric current [2] What is meant by :- 1- Static electricity.. 2- Current (dynamic) electricity.. 3- Electric circuit.. -12-
[3] What happens when:- 1- Rubbing your hair by a comb.. 2- Removing the battery from a closed electric circuit.. [4] Give reasons:- 1- Attracting small bits of paper to a ruler that was rubbed your hair.. 2- Battery is the main part of the electric circuit.. [5] Write the scientific term:- 1- It is the source of electric current in the electric circuit. ( ) 2- It is used to close and open the electric circuit. ( ) 3- They are used to transfer electric current from battery to lamp. ( ) 4- It is the path of electric current. ( ) -13-
[6] What is the result of:- 1- Good using of electricity. 2- Absence of sun from earth. 3- Electricity is not present at home. 4- The absence of a switch in an electric current. -14-
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Practical Science Unit (1) : Lesson (1) : The Cell 1- Label the following diagram:- 1).. 2).. 3). 4). (1) Plasma membrane (4) Small vacuole (2) nucleus (3) Cytoplasm This figure show the structure of.. 2- Label the following diagram:- 1).. 2).. 3). 4). 5). (2) nucleus (5) Cap vacuole (1) Cell wall (3) Chloroplast (4) Cytoplasm This figure show the structure of.. -16-
Unit (1) Lesson (2) Digestive system Practical Science [1] Label the following diagram:- (A) The following diagram represents. B) 1-2- 3-4- 5-6- 7-8- 9-10- 11-12-.. (5) (3) (1) (4) (2) (6) (7) (8) B) What is the function of number (6)? -17-
Practical Science Unit 1 : Lesson 3 : Respiratory system [1] Label the following diagram: 1-2-. 3-. 4-. 5-. 6-. 7-. The Answer:- 1- Pharynx 2- Larynx 3- Trachea 4- Bronchi 5- Bronchioles 6- Alveoli 7- Right lung 8- Diaphragm -18-
Lesson (4) : Practical Science The importance of sunlight Experiment (5) Classify the following into : producer consumer and decomposer 1- Dog 2- Lion 3- Corn plant 4- Yeast fungus 5- Green plant 6- Bread mold fungus 7- Yoghurt Bactria -19-
Lesson two :- Practical Science Forms of Energy Mention the changes of energy in the following cases:- Used energy Produced energy 1- Solar healer.... 2- Solar cells.... 3- Battery.... 4- Dynamo.... 5- Electric motor.... 6- Radio.... 7- Electric fan.... 8- Violin.... -20-
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Unit (1): Living things Lesson (1):The human digestive system Book P.14, 15 Q. (1): Choose: 1- C 2- C Q.(2): The stomach. Q.(3): The large intestine Q.(4): c- Bile helps to digest fats Q.(5): 1- mouth 2- esophagus 3- stomach 4- Pancreas 5- Liver 6- Small intestine 7- Large intestine 8- Rectum 9- Anus A- Mouth and small intestine B- Stores wastes till they are expelled outside the body C- Liver number(5) Q.(6): A- Stomach B- Mouth C) Small intestine Q. (7) P. 13 Keeping the digestive system healthy Q.(1): Lesson (2) The human respiratory system Book P. 23, 24 A-Trachea: Carries air to the bronchi B- Alveoli: Gas exchange happen in it C- Bronchus: Carries air from trachea to lungs D-Lung: Contain alveoli for gas exchange E-Diaphragm: Helps in inhalation and exhalation process. Q.(2): Complete: 1- Diaphragm 2- Air and blood 3- inhalation exhalation -22-
Q.(3): Because inhalation air is rich in oxygen but exhalation air is rich in carbon dioxide Activity : Blow the air (exhalation air) through lime water. Observation : Lime water become turbid Conclusion: Turbidity of lime water due to present of carbon dioxide in exhaled air. Q.(4): Because the nose contains hairs and mucous which filters the air from dust and microbes and it also contains tiny blood vessels capillaries which warm the air before entering the lungs. Lesson( 3) The cell Book p.32-33 Q.(1):Choose: 1- B 2- C 3- C Q.(2): Stomach : Digestive system Trachea : Respiratory system Q.(3): Comparison Plant cell Animal cell Yeast fungus Nucleus Present Present Present Cytoplasm Present Present Present Chloroplast Present Absent Absent Q.(4): a- yeast fungus b- stomach c- epidermis tissue of onion plant d- Circulatory system Lesson (4): Importance of sunlight for living organisms p. 41,42 Q.(1): 1- A 2- c 3- b 4- a 5- c -23-
Q. (2): 1- Oxygen 2- iodine solution 3- Carbon dioxide gas, sunlight, water. Q. (3): 1-Producers: Corn plant Green alga 2- Consumers: Lion dog - human 3- Decomposers: Yeast fungus yoghurt bacteria Q.(4): 1- Because they get rid of dead bodies and increase soil fertility. 2- To absorb sunlight for the photosynthesis process. Q.(5): Compare between :- Producers Consumers Decomposers They are living organisms that can make their own food by photosynthesis process. Ex. Green plants, algae They are the living organisms depending on producers to get their food directly or indirectly Ex. Cow, lion, snake They are living organisms that get their food by decomposing organic wastes such as dead bodies and food remains. Ex. Bacteria, yeast fungus -24-
General exercises on unit (1) P.51,52,53,54 Q.(1): 1- Oxygen -Carbon dioxide 2- Organs Tissues 3- Stomach and small intestine 4- Decomposers 5- Gastric juice saliva juice 6- Producers green plants 7- yeast fungus 8- Solar energy chemical energy Q.(2): 1- D 2- C 3- B 4- C 5- C 6- A Q.(3): 1- At part (2) the mouth cavity. 2- It secretes bile juice which changes fat into fatty emulsion. 3- small intestine number (5). Q. (4): - During inhalation process the diaphragm muscle contracts and moves down and the thoracic cavity enlarges, so the air rich in oxygen enters the lungs. - During exhalation process the diaphragm muscle relaxes and moves up and the thoracic cavity becomes narrow, so the air rich in carbon dioxide moves outside the lungs. Q.(5): 1-Chloroplasts are found in plant cell but not found in animal cell. 2- Cell wall is found in plant cell but not found in animal cell. Q.(6): -Salivary glands secrete saliva juice. - Liver secretes bile juice. -25-
Q.(7): 1- The cell 2- Saliva juice 3- Bile juice 4- Chloroplasts 5- Producers Q.(8): 1- The plant cannot make their food by photosynthesis process. 2- There will be a lot of dead bodies. 3- The digested food is not absorbed 4-food will enter the trachea 5- dust and microbes will enter the respiratory system. Lesson (2): Forms of energy and their changes P.75,76 Q.(1): 1- Work 2- Sound energy, light energy, kinetic energy. 3- light 4- vibration of objects. 5- kinetic energy 6- solar cells Q.(2): Because kinetic energy changes to heat energy Q.(3): - Potential energy - spring (A) Q.(4): 1- light energy changes to heat energy that burns the paper. 2- potential energy changes to kinetic energy that moves the piece of rubber. Q.(5): 1) P. 70 2) P. 71 3) P. 72 Q.(6):1- Kinetic energy changes to potential energy 2- Electric energy changes to light energy. 3- electric energy changes to kinetic energy -26-
Lesson(3): Sources of energy P.85,86 Q.(1): 1- there is no life on earth. 2- Cars and factories will not work Q.(2): 1-2- 3- x 4- x 5- Q.(3): Because it is a clean source of energy that doesn't pollute the air. Q.(4): 1- non renewable sources of energy 2- The sun 3- Natural gas Q.(6): - Sun: by solar cells - moon: from tide and ebb - Water falls: by turbines - Wind: by wind mills Q.(7):A- wind, water falls, rising and ebb tides. Q.(8): C- Coal Lesson (4):Electricity p.94,95 Q.(1): 1- the hair stands and is attracted to the comb. 2- The ruler can attract the small pieces of paper. 3- The hair stands 4- The electric current is cut off. Q.(2):1- The balloon is attracted to the wall. 2- you will feel the electric charges. 3- You cannot open or close the electric circuit. Q.(3):1- It is the electric charges that remain on an object. 2- It is the electric charges that flow through connecting wires. 3- It is a closed path of electric current. Q.(4): Static electricity It is the electric charges that remain on an object. -27- Dynamic electricity (current) It is the electric charges that flow in the wires.
Q.(5): 1- Due to static electricity. 2- Due to static electricity. 3- To avoid electric shock Q. (6) By using florescent lamp. Bec. It doesn't consume electricity as the light bulbs. Q.(7): - B - D General exercises on unit (2) P.98 103 Q.(1): a- b- c- d- e- x Q.(2): a- heat energy b- Sound energy c- Kinetic energy d- Potential energy e- Sound energy f- Light energy Q.(3): 1- vibration of objects 2- work 3- Sun 4- electric current 5- generating electricity Q.(4): 1- Due to formation of static electric charges on the ruler. 2- Because sound is produced due to the vibration of objects. 3- because on riding the bicycle potential energy changes to kinetic energy. 4- Because force changes the state of object from rest to motion. Q.(5): 1- It is the effect that changes the state of the object. 2- It is the electric charges that remain on an object. 3- It is the electric charges that flow through connecting wires. 4- It is a form of energy that reaches our ears causing the sense of hearing. Q.(6): a- 2000-28-
Q.(7): 1- the green plants can't make photosynthesis process. 2- all devices cannot work. 3- Cars, trains, airplanes and factories will not work Q.(8): 1- the piece of paper will be attracted to the ruler. 2- potential energy changes to Kinetic energy. 3- decrease the consumption of electricity. General exercises on the second Term p. 105 110 Q.(1): 1- Chloroplast cell wall 2- duodenum ileum 3- sun 4- Vibration of objects 5- The cell 6- Solar energy 7- oxygen and sugar Q.(2): A- 1- Secretes gastric juice that digests proteins incompletely. 2- Complete the digestion of food and absorbs digested food. B- 1- sound energy is produced. 2- The nail becomes hot. 3- Heat energy is produced. Q.(3): 1- c 2- b 3- c 4- c 5- b 6- a Q.(4) 1- Potential energy 2- Spring B 3- Potential energy changes to kinetic energy. Q.(5): 1- Due to the presence of decomposers. 2- Due to the formation of static electric charges on the ruler. 3- Because stomach secretes gastric juice that digests proteins incompletely then the small intestine completes the digestion of food. 4- Because it is the main source of electric charges. Q.(6): 1- electric energy 2- sound energy 3- Light energy -29-
St. Fatima Lang. School Heliopolis Name: Mid-Term Exam Answer the following questions:- [1] Complete the following statements:- -30- Form:4 th Primary Subject: Science Class: 1- Exchange of gases occurs in lungs between, and.. 2- Proteins are digested in and.. 3-. is an example of the unicellular living organisms. [2] Choose the correct answer from the following:- 1) The.. is an organ of the human respiratory system. a) heart b) lungs c) stomach 2).. is a common cavity leads to esophagus and trachea. a) larynx b) pharynx c) mouth 3) It is found in the plant cell and not found in the animal cell a) nucleus b) cytoplasm c) chloroplasts 4) Bile juice is secreted by.. a) liver b) salivary gland c) pancreas intestine 5) The number of respiratory times increase in case. a) sitting b) running c) sleeping [3]A) Write the scientific term:- 1- The organ that mixes food with saliva. [...] 2- The building unit of living organisms body. [...] 3- A process by which oxygen enters the lungs. [...]
B) Compare between Animal cell and Plant cell:- [Two point only] Animal cell Plant cell.... [4]A) Give reason for:- 1- Liver help in the digestion of fats. 2- Nose has blood capillaries. B) Correct the underlined word in the following statements:- 1- Gases exchange takes place in trachea... 2- The nucleus controls the substances that enter or leave the cell... 3- Absorption of food occurs in stomach... -31-
-32- Cairo Governorate Subject: Science Nozha Educational Administration Form:4 th Primary St. Fatima Language School Heliopolis Time: 1½ h. Answer the following questions:- [1] Complete the following statements:- 1-.. gas evolved during the process of photosynthesis. While.. gas is released as a process of a respiratory process. 2- Food chains begin with. such as.. 3- The main source of energy on the earth's surface is the. 4- The organ which is found in both of the respiratory and digestive system is 5- From renewable resources of energy is. 6- Electric fan rotates by the effect of energy. [2]A) Choose the correct answer:- 1- The path of electric current is called [battery switch electric circuit ] 2- Bread mould fungus is from. [consumers producers decomposer] 3- Digested food is absorbed in the.. [stomach liver small intestine] 4- The measuring unit of the force is.. [metre minutes Newton ] 5- From the non renewable resources of energy.. [coal and natural gas wind and coal wind and water falls ] B) Write the scientific term:- 1- The juice which is secreted from the liver and digests fats ( ) 2- The ability to do work. ( ) 3- A process by which oxygen enters the lungs.( )
[3] Correct the under lined word in the following statements:- 1- The nucleus controls the substances that enter or leave the cell. 2- Consumers can make their own food by them selves through the process of photosynthesis. 3- Potential energy it is the energy produced from the electric lamp... 4- Green plant is an example of unicellular living organisms. 5- A complete digestion of proteins occurs in stomach. B) Give reasons:- 1- Battery is a main part in the electric circuit.. 2- Green plants are called autotrophic.. 3- Nose has blood capillaries.. [4] A) Form a food chain from the following organisms:- frog falcon wheat plant snake locust -33-
B) Put ( ) in front of the part which exists in the plant or Animal cells in the next table:- Point of comparison Plant cell Animal cell Cell wall Nucleus Chloroplast C) Write the name of force that moves them from rest:- No The tool The effective force 1 A bicycle 2 A kite 3 A wheel barrow -34-
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