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Port Said Governorate
Educational Directorate
South Educational Administration
Port Said Integrated Language School
Revision sheet final G4
: Complete :
1. …Sun.. Is the permanent source of energy, while …Coal….is one of the
nonrenewable resources.
2. Cars work by …benzene…or…natural gas…………, while irrigation machines
work by kerosene…………...
3. Static electricity can be generated by…rubbing…..objects.
4. The plant cell is characterized by the presence of……cell wall………….and
…………chloroplasts…..
5.
6.
7.
8.
Sound originates from ……vibration….
In solar cells,..light...energy changes into ....electric.............energy.
Force is the effect that changes...state...of the body from .rest.. to motion
The organ which is found in both of the respiratory and digestive system
is...pharynx, while the organ which separates the thoracic cavity from the
abdominal cavity is…………diaphragm……….
9. ……molars…in the mouth grind food
10.…lungs…….is found in the thoracic cavity and it is surrounded by ……ribs..
11.In the human body, each organ consists of a group of ....tissues...... that
consists of smallest units called cells
12.....diaphragm..... muscle helps in the mechanism of respiration.
13.The plant cell is surrounded by ...cell wall..., while ....cytoplasm.... fluid fills
it.
14.At the top of trachea, there is .larynx........... that is called voice box.
15...yeast fungus. and ................. are examples for unicellular organisms.
16.In the photosynthesis process, the plants absorb .water... and ....minerals...............
from soil and ...carbon dioxide.... from air.
17.The nose is lined with ...blood capillaries.....to warm the ....inhaled.... air
before entering the two lungs.
18.....trachea... is lined with .....cilia. to eject up the strange objects such as food
particles.
19.The nose is lined with .....mucous.... layer which filter the air from dust....... &
.........microbes. before it enters the lungs.
20.During the ......inhalation..... process, the thoracic cavity enlarges and the ribs
...go upward....
21.....bacteria.... and ................yeast fungus..... are examples of unicellular
organisms.
22.......urinary, .....digestive.... and circulatory systems are from the systems of
the human body.
23.- When you rub your hands together, _kinetic__ energy changes into _heat
energy.
24.- We get _electric_ energy from the solar cells.
25.- In a solar heater, _light_ energy changes into _heat_ energy.
26. – Solar cell change --light-- energy into ----electric--energy.
27. – Coal, petroleum and natural gas are nonrenewable
28.resources of energy.
29. – Wind and water falls are-renewable- resources of energy .
30.- In the guitar, _kinetic_ energy changes into _sound_ energy.
Answer the following:
1. Use the following words to form a food web: sun light – cotton plant- locustfrog- snake- falcon- wheat plant- rat. P.108
2. Rearrange the following words to form a food chain: aquatic insects- big fishalgae- small fish. (start with the producer: algae)
Algae- aquatic insect-small fish-big fish.
3. Locust- green plant- snake- hawk- frog. (start with the producer)
Green plant-locust-frog-snake-hawk
____________________________________________________________________
: Put ( √ ) or ( × )
1. Digestive canal starts with mouth and ends with anus.
( √ )
2. Absorption process takes place after digestive in small intestine .
( √ )
3. Alveoli have thick walls to allow gases exchange .
( x )
4. The electric fan changes sound energy to heat energy .
( x )
5.
6.
7.
8.
9.
Nonrenewable energy is the energy that cant renew itself.
The digestion of protein occur in mouth
Digested food absorbed in the stomach
Gastric juice digests fats
Saliva digests protein
( √ )
( x )
( x )
( x )
( x )
10.Bile juice helps the digestion of fats
( √ )
: Choose the correct answer :
1. Liver secretes ---------------- juice
( bile – gastric – saliva )
2. Force measuring unit is -----------------------( Newton – meter – kg )
3. ………………are examples of producers
( Algae –Birds –Cows )
1) The device which produces electric energy is…………………………
a) piano.
b) fan.
c) battery.
d) heater.
2) ………………………is renewable energy resource .
a) coal.
b) wind.
c) petroleum.
d) natural gas.
3) Yeast fungus is used in the manufacture of ………………….
a) alcohol.
b) papers.
c) wood.
d) fire extinguishers.
4) Which of the following living organisms is not a producer
?...........................
a) green algae.
b) wheat plant.
b) Corn plant.
d) fungus.
5- _________ is one of the applications that depend on engine pushing force in
motion.
a-Metro
b- Electric lift
c- Bicycle
d- Electric sewing machine
6- _________ is one of the applications that depends on force in rising heavy
objects.
a- Crane
b- Blender
c- Wheelbarrow
d- Electric fan
7- The wheelbarrow is moved by the effect of _______
a- water pushing force c- air pushing force
b- hand pushing force d- motor pushing force
9 – Solar heater changes solar energy into ……..... energy.
chemical )
(heat – light –
10 – Which of the following groups are considered as renewable resources of
energy?
A – Wind, water falls, sun.
B – Coal, petroleum and natural gas.
C – Wind, water falls and rising and ebb tide.
11 - --------is formed when electric charges remain on an object.
(Static electricity - light - current electricity)
12– The source of electric current called ------------.
(switch - wire - battery )
) Write the scientific term:
1. The building unit in the living organism body …cell…
2. Electric charges that flow through connecting wires for long distances
……current electricity…
3. The main source of energy on earth's surface ………sun…
4. A device used to change light energy into electric energy …solar cell….
5. A group of overlapping food chains representing the flow of energy
through living organisms …food web.
6-The effect which changes the state of object .
(…force…)
) Write the scientific term:
1) It is the process by which the human obtain energy from digested food.
( …respiration…)
2) The required gas for respiration process.
( ………oxygen……)
3)
A gas that is produced in the exhalation process and turns clear lime water
milky.
( ……carbon dioxide…)
4) A common path between esophagus and trachea. ( ………pharynx……)
5) An organ found at the top of trachea and called the voice box.
( ……larynx……)
6) A process by which oxygen gas enters the lungs. ( …inhalation……)
7) A process by which carbon dioxide gas and water vapor are expelled outside the
body.
( …exhalation………)
8) A muscular membrane that separates the thoracic cavity from the abdominal
cavity.
( …diaphragm……)
9) The gas that turns the clear lime milky.
( …carbon dioxide…)
10)
It is used to close and open the electric circuit……switch….
11)
The energy stored in the spring
kinetic
12) A system that digests and absorb food
( -digestive-- )
13)
A system that carries out respiration process ( --respiratory- )
14)
A system that helps the body getting ride of harmful substance
15)
( --urinary- )
16)
A system that carries out the transport function in the human being.
( ----circulatory )
17)
The organ that mixes food with saliva
( ---tongue--- )
18)
A liquid that is secreted in the mouth and helps in digestion of starch
( --saliva )
19)
A muscular tube allows food to pass from pharynx to stomach
20)
( --esophagus-- )
21)
An organ that is responsible for incomplete digestion of protein
22)
( -stomach-- )
23)
The organ that secretes bile juice
( --liver--- )
24)
The juice that is secreted from the liver and affects fats digestion ( bile )
B- What is the function/use of each of the following?
1-The cilia in trachea.
…………ejecting up strange objects that enters the lungs………
2- The pulleys.
………make the motion easy…………………………
3- Gears in machines………transfer the motion…….
4- Blood capillaries inside the nose………warm up the air before entering the
lungs……..
5-green plastids………photosynthesis process………….
6-alveoli………………………gases exchange……………….
7-epiglottis………………closing the trachea during swoallowing of food
8-dynamo………transfer kinetic energy into electric……
B) - Give Reasons for each of the following:
1. We should breathe through nose
Because the nose contain blood capillaries to warm up the air and hair and
mucous to clean it from dust and microbes
2. Attraction of small paper bites to a rubbed ruler by hair:Due to formation of electric charges on the rubbed ruler causing the small bits of
papers to be attracted to it
3- Battery is a main part in the electric circuit.
Because it is the source of electricity in the electric circuit.
4- It is preferred to use natural gas other than coal.
Because it is the cleanest form of non renewable resources
5- All food chains begin with producers.
Because they make their own food using the sun light during photosynthesis
process
6- Green algae are considered as producers
Because they make their own food using the sun light during photosynthesis
process
7-Decomposers are very important in our environment.
Because they get rid out of dead bodies and increase the soil fertility
________________________________________________
I. Compare between the following:
1. Inhalation and exhalation.
Inhalation
Exhalation
The diaphragm muscle contracts
The diaphragm muscle relaxes and
and moves down.
moves up.
The thoracic cavity enlarges.
The thoracic cavity becomes
narrow.
The air rich in oxygen enters the
The air rich in carbon dioxide
two lungs through the nose.
moves outside the lungs through
the nose.
2. Bile juice and pancreatic juice.
Bile juice
Produced by the liver.
Helps to digest fats.
Pancreatic juice
Produced by the pancreas.
Helps to digest sugar.
3. Producers, consumers and decomposers.
Producers
Consumers
Are living organisms
Are living organisms
that can make their
that depend on
own food by
producers directly or
themselves through
indirectly to get their
photosynthesis.
food.
Decomposers
Are living organisms
that get their food by
decomposing the
organisms’ wastes as
dead bodies and plant
remains and decayed
food.
Examples: bacteria and
fungi as bread mould
fungus.
Examples: green
plants, algae, types of
bacteria.
Examples: cows,
sheep, lion, man,
snake, hawk, fish.
Cell parts
1. Chloroplasts
Plant cell

Animal cell

2. Cell wall


3. Nucleus


4. Cytoplasm


Definite
Indefinite


5. Shape
6. Cell membrane
Match a part from column (A) to the right part from column (B).
1234-
(A)
Large intestine
Pharynx
The cell
bile
abcde-
(B)
is secreted by liver to digest fats.
is a common cavity leads to the
esophagus and trachea.
is assembled the undigested food.
is the building unit of living organisms.
is changing food from a complex form
into a simple form to let the body get
benefited.
1-c 2-b 3- d 4- a
3 - Correct the underlined words.
1- Gases exchange take place in trachea.
2- Tissue is made up of a symmetric set of organs.
……/…lungs.
...………cells
3- Coal is considered as the cleanest type of fuel
………natural gas
4- In the electric heater, the electric energy is changed into chemical energy.
heat
………………………...
Absorption of food occurs in anus
-------------------------------------small intestine--------------------------------Label the following figure: revise diagrams from the summary (all the parts of
thedigestive-respiratory)