Download Name: ................................ Class: ............................... Science Revision

Name: ................................
Class: ...............................
Science Revision sheet 4th primary
Q1 Choose the correct answer:
1. There are two types of electricity, which are ...............
A. static and thermal electricity
B. dynamic and thermal electricity
C. light and heat energy
D. static and dynamic electricity
2. Static electricity is produced from ...............
A. flow of electric charges in wires
B. rubbing your hair by a plastic ruler
C. putting a battery inside a torch
D. (a) and (c)
3. The ................is the main source of energy on the Earth's surface.
A. Moon
b. Sun
C. Petroleum oil
D. natural gas.
4. In ...................kinetic energy changes into electric energy .
A. motor
b. electric lamp
c. dynamo
d. violin
5. On rotation of a spring, an exchange happens between................
A. potential energy and electric energy
B. potential energy and kinetic energy
C. potential energy and heat energy
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d. all the pervious
6. Sound is a form of ....................
A. mass
B. speed
C. energy
D. motion
7. During photosynthesis process ................... gas is produced.
A. carbon dioxide
B. nitrogen
C. oxygen
D. (a) and (c)
8. All the following living organisms are producers except................
A. green plant B. corn plant C. bread mold fungus D. wheat plant
9. A tissue is ...............
A. a group of similar cells in structure and function
B. a group of different cells in structure and function
C. a group of organs
D. a group of system
10. Plants make their own food by.................process.
A. respiration
B. photosynthesis C. digestion D. circulation
Q2 Put (√) or (×) and correct the wrong one:
1. The animal cells are surrounded by the cell wall (
)
..............................................................................
2. Yeast fungus is unicellular organisms. (
)
..............................................................................
3. Non renewable energy is the energy that can't renew itself such
as coal ( )
.............................................................................
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4. The plant cell is similar to the animal cell in containing cell wall (
)
...........................................................................
5. Yeast fungus has economic importance as it is used in making
jewellery (
)
............................................................................
6. Battery changes electric energy into chemical energy ( )
............................................................................
Q3 Write scientific term:
1. The ability to do work.
(
)
2. The type of electricity that can be formed by rubbing (
)
3. Electric charges that flows through connecting wire for long distance.
4. The energy stored in a spring of a toy car.
(
)
(
)
5. Living organisms depend on other living organisms in their food. (
)
6. The muscle that separate between thoracic cavity and abdominal cavity.
(
)
7. Living organisms that can make their own food by photosynthesis process.
(
)
8. A process by which oxygen enters the lungs.
(
)
9. The building unit of the animal body.
(
)
10. Biological process takes place in green parts in the plants to make their own
food.
(
)
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Q4 Give reason:
1. The electric circuit must contain a battery.
Because it's the source of electric current .
2. It is preferred to use natural gas other than coal
Because it causes less pollution for the environment .
3. Green plants are called producers
Because they make their own food by photosynthesis process.
4. Animal cells have indefinite shape
Due to the absence of cell wall.
5. the nucleus has important role in the cell
Because it organizes the biological operations and it’s responsible for the cell
division.
Q5 complete the following :
1. The chloroplast ( green plastids ) are found in .........................cell.
2. In solar cell, ......................energy changes into ...............energy.
3. ............................ and ........................ are considered from decomposers.
4. ........................... energy produced from the vibration of objects.
5. ...................... is from the renewable resources of energy.
6. ....................... is used to detect the presence of the starch and its color
changed into ......................
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Q6 Correct the underline words :
1. Static electricity is formed from the electric charge that flow through the
wire .
(
)
2. A plant cell is surrounded from outside by plasma membrane
(
)
3. Oxygen gas used during the photosynthesis process. (
)
4. Car motor changes light energy into kinetic energy. (
)
5. Wind is from non-renewable resources of energy.
)
(
Q7 Answer the following questions:
a- This figure represents .............
b- Label the figure
1
1. ........................
2. ........................
2
3. ........................
3
4. ........................
4
5