Cairo Governorate
Nozha Directorate of Education
Nozha Language Schools
Ismailia Road” Branch
Department : Science
Form : 5th primary
Revision sheet
Unit “1”
Lesson 1: light
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1- Complete:Light travels in ………………………………...
………… and ………… are phenomena that happen as result of traveling of light in
straight line.
……….. is a darkened area which is formed when light falls on an opaque objects.
When the light falls on any object it ………… to our eyes causing vision.
We see objects due to …………… of light.
When the reflected surface is smooth the reflection is………………
The visible white light separated into ……….. colors by using ……..
The spectrum color are …………. , ………….. , ………………. , ………………,
…………..,indigo and …………..
2- Give reason for:1- The formation of images through narrow holes.
………………………………………………………………………………………………
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2- The formation of shadow.
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3- We can see the moon lighted at the night.
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4- The pencil seems broken at the water’s surface
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3- Put (√) or (X) :1- Light is a form of energy
2- The nearer object to the light source has the bigger shadow
3- The visible spectrum is the light energy that can’t be seen
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4- Choose:1- The pencil appears ( broken – straight ) , because light ( refract – reflect ) when it passes
through two different transparent media.
2- Air and water are ( non-transparent – transparent ) media.
Lesson “2”
1- Complete:1- When white light strikes the green grass , the grass absorbs …………. and
reflects ………. Light only.
2- …………. Reflects its own light only while ……….. allows its own color only to pass
through .
3- …………… , …………..… and ………..……… are called the secondary colored light.
4- Mixing ……….…… and ………………. light gives yellow light
2- Choose:1- The black board …………. White light falls on it.
{ absorbs all light color – reflects all light color – absorbs all light colors except red}
2- Mixing green and blue light gives …….. light.
{ yellow – cyan – magenta }
3- Which of the primary colored lights are mixed to produce yellow color?
{ red and green – red and blue – blue and green }
3- Put (√ ) or (X):1- The black T – shirt reflects all the light colors
2- The glass prism separates the white light into 10 spectrum
3- The green table reflects all the light colors
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4- Give reason for:1- The chalk appears white , while the black board appears black
………………………………………………………………………………………………
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2- The red apple seems black when you look at it from a green glass sheet.
………………………………………………………………………………………………
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3- We must wear white clothes in summer.
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Lesson “3”
1-Complete :1- A magnet has ……….. poles.
2- A magnet has ……… pole and ……… pole
3- Magnets with the same poles will ………. each other.
4- Magnets with different poles ……….. each other.
5- Each magnet has a space in which its magnetic force appears called ……………
6- Like poles ………. Each other while unlike poles ……… each other.
7- The natural magnet is called ………. or ………..
8- From the shapes of man – made magnets …………… , …………… and ……………..
9- ……….. is the area of a magnet at which the attraction force is greatest.
10From the substances that are not attracted to a magnet ……….. , ……….
and ………..
2- Put ( √ ) or ( X ):1- There is only one type of magnet
2- From the magnetic substances are glass and wood
3- The magnet attract magnetic and non-magnetic substances
4- The shapes of magnet are bar and horse shoe only
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3- What happen and say why?
1- If you suspend a magnet to move freely
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2- If you put a strong magnet close to aluminum bar
………………………………………………………………………………………………
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3-If you approach a north pole of one magnet to a south pole of another magnet
………………………………………………………………………………………………
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4-If you scatter some iron filings on a piece of cardboard by a bar magnet
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Lesson “4”
1- Complete:1234567-
The magnet which is made by the effect of electricity is called …………….
…………… and …………… are examples of devices that contains electromagnet.
Moving a bar magnet through a coil produce ……………..
…………. and ………….. are examples of dynamo
A huge electric generator is used in …………….. stations.
………….. changes the electric energy into magnetic energy
………….. is used to lift tons of steel or iron.
2- Give reason for:1- The magnet which is made by electricity is called electromagnet.
………………………………………………………………………………………………
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2- In dynamo, we use a strong magnet and increase the number of turns in the moving coils.
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3- We must increase the number of coil turns in the electromagnet.
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4- The small cylinder in the bicycle’s dynamo touches the bicycles tires.
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3- Put (√) or (X):1- The electric current has a magnetic effect
2- Electromagnet is used for making electric bells , electric mixers
3- Newton is the scientist who discovered that magnetic energy can be changed into
electric energy
4- The amount of electricity produced from dynamo increases by using weak magnets
5- Dynamo changes the electric energy into kinetic energy
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Unit “2”
Lesson “1”
1- Write the scientific term:1- A mixture formed by dissolving salt in water
2- A set that is used to separate water – oil mixture
3- A method used to form salt – pepper mixture
{……………..}
{……………..}
{……………..}
2- Put (√) or (X):1- Sea water is a source for producing table salt
2- Sugar and baking soda are mixtures .
3- Separating funnel is used in separating heterogeneous liquid mixture
4- Salty solution can be formed by shaking or stirring.
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3- Mention one use for each of the following:1- Filter paper:……………………………………………………………………………………………
2- Magnet:………………………………………………………………………………………………..
3- Boiling:………………………………………………………………………………………………..
4- Separating funnel:……………………………………………………………………………………..
4- Give reason for:1- Air is considered a mixture.
……………………………………………………………………………………………………
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2- A magnet can be used to separate iron filing from sand.
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Lesson “2”
1-Complete:1- The substance which dissolves in a liquid is called …………..
2- The substance in which the solute dissolves is called ……………
3- The process by which a solute dissolves in a solvent is known as ……………
4- In salty solution , salt is the ………… , while water is the ……………
5- On adding insoluble substances in a certain solvent, ……………. is formed.
6- Solubility process is affected by ……….,…………..,……….and ………..
7- The speed of solubility …………… by increasing stirring process.
2- Choose:1- Any solution is composed of ……………..
a. solvent only
b. solute only
c. solute and solvent
2- ……………. is an example of heterogeneous liquid mixtures.
a. orange juice
b. tea
c. salty solution
3- Solubility process depends on …………….
a. temperature
b. stirring
c. type of solute
d. all the previous
4- ……………. is a common solvent as thousands of materials dissolve in it .
a. water
b. alcohol
c. benzene
d. orange juice
3- Give reason for:1- Water is considered a common solvent.
……………………………………………………………………………………………………
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2- Salt dissolves easily and faster in a large amount of water.
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3- The solubility speed depends on the temperature of the solution components.
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4- Complete the following table:Solution
1- tea solution with sugar
Solute
Solvent
2- salty solution
3- baking soba solution
4- lemon juice with sugar
5- Put ( √ ) or ( Х ):a.
b.
c.
d.
e.
water in sugary solution is the solute
water is the most common solvent
the suspension can be separated by using magnetic attraction
as stirring increases , the solubility time decrease
the components of homogeneous mixture can be distinguished
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Unit "3"
Lesson "1"
1- Complete:1- Types of food relationships between living organisms includes ………. , ……… and ……..
2- ………… is a temporary relationship which ends up by devouring the prey or a part of it.
3- ………….is less common in the plant world than in animal world
4- Plants are ………….. organisms
5- The plants that feed on insects are known as ………….. such as ………..
6- ………….. is relationship where both organisms gets benefit from the other and is not harmed
7- mutualism relationship between nodular bacteria and …………… plants such as beans
8- ……………. Ejects a black color fluid in the surrounding water when attacked by its enemies.
9- Tiny aquatic living organisms get food and ………….. From the canals.
10-Types of parasitism are …………. and ……………. Parasitism
2- Give reason for:-
1- Predation is a temporary relationship
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2- A chameleon can hide from its enemies.
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3- Some bees look like wasps in forming lines on bodies.
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4- Parasitism relationship differs from the predation relationship.
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5- Parasitism causes weakness to the host.
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3- Mention the kind of food relationship between each of the following:12345-
Cat and rat
Bread mold fungus and moist bread
Lice and man
Jawless lamprey and fish
Crocodiles and some birds
Lesson"3"
1- Complete:1- …………….. it is the balance among the components of the ecosystem
2- …………..…. its any natural area including living organisms and …………………
3- Ecosystem maybe ………….. , ……………. and …………..
2- Put (√) or (Х):1- Changing of natural conditions leads to environmental pollution
2- Plants depend completely on the soil to get water
3- Predators recognize the numbers of preys population
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3- What would happen if :-
1- Trees are cut down
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2- There are no predators in the ecosystem.
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3- Preys do not find food and shelter within the ecosystem
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Final Revision
on unit ( 1 )
I- Complete :1. When the light passes from a glass rod to air , it …………………. .
2. Materials can be classified according to their ability to transmit light
into ………. ,…………and ………………..materials .
3. The basic idea of the electric generator is the changing of …………………energy
into ……………….energy .
4. light rebounding when if falls an object is called ………………….. .
5. Light can easily transmit through ……………… and ………….materials .
6. ………………….and ……………….are from the magnetic materials .
7. ……………….and ……………….are the poles of the magnet .
8. Like poles ……………….each other .
9. Unlike poles ………………….each other.
II- Give reason for :1. Some materials are called magnetic materials .
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2. Aluminum foil is an opaque material .
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3. A soon appears broken when it is placed in a cup of water .
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4. Iran , cobalt and nicked are magnetic material .
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III- Write the scientific term :1. A set is used for locating the main four geographical directions .
2. It is the light energy that can be seen .
3. A darkened are formed when light falls on an opaque object .
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IV- Compare between :P.O.C.
Magnetic materials
Nan – magnetic materials
Regular reflection
Irregular reflection
V- Compare between :P.O.C.
Final Revision
on unit ( 2)
I- Write the scientific term :1. A type of mixtures consists of two or more different liquids .
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2. A device used to separate the heterogeneous liquid mixtures .
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3. It is the substance that consists of more than one type of particles . [
II- Compare between :Point of comp.
Mixtures
Pure substances
III- Give reason for :1. The solution is a type of mixtures .
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2. Air is considered a mixture .
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3. a magnet can be used to separate iron fillings Fran sand.
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IV- What happens :1. Mixing different types of fruit juices together .
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Final Revision
on unit ( 3)
I- Compare between :1.
Predation
Parasitism
Definition
Some that occur to the host
Example
II- give reason for :1. Some animals feed on other ones .
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2. Plants depends an the soil .
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3. Predation is a temporary relation ship .
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III- Write the scientific term :1. It is the balance among the components of the ecosystem . [
2. It is any natural area inducing living organisms and non
living things .
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