مراجعة العلوم لغات للصف الخامس الابتدائى الترم الثانى
العلوم للصف الخامس الابتدائى الفصل الدراسى الثانى
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مكتوبة بصيغة pdf بدون علامات مائية وجاهزة للطبع
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جميع كتب و مذكرات و امتحانات و مراجعات العلوم للصف الخامس الابتدائى
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Lesson 1 : Fricton
[1] Complete:‐
1‐ If you roll a marble on the earth , it doesn’t keep endless rolling due to the effect
of ................................ force .
2‐ Friction force is the amount of ..................... that exists between .........................
and affects the movement in the opposite direction
3‐ The damaging of machines internal part is one of the friction ..........................
4‐ Using ..................... and .................. decrease the friction force between the
internal surfaces of the machines moving parts.
5‐ The friction force is always in the ................... direction object’s movement.
[2] Write the scientific terms:‐
1‐ A force that shows down the moving object and has effect in the opposite
direction of the object’s movements. (...........................)
2‐ They used to decrease the effect of friction force between the internal moving
parts of machine. (...........................)
3‐ The surface of the machines internal moving parts. (...........................)
[3] Tick ( √) in front of true sentence , and if the sentence is wrong correct the
underlined words.
1‐ The frictions force increases the objects motion.
...................................................................................................................
2‐ Oil is used to decrease the effect of friction force between the internal moving
parts of machines.
...................................................................................................................
3‐ The friction force is always in the same direction of the object’s movement.
...................................................................................................................
4‐ The friction force between two surfaces is greater while moving than stopping.
...................................................................................................................
5‐ Ball bearing are formed of a group of small metal balls which have smooth
surfaces and the friction force between them is non – existent
...................................................................................................................
[4] Give reasons:‐
1‐ Using lubricants and oil in the mechanical machines?
............................................................................................
2‐ Using ball bearings in the internal parts of the machines?
............................................................................................
Unit 2 : The circulatory system and urinary system
Lesson 1 : The circulatory system and circulation
[1] Complete:‐
1‐ The circulatory system consists of ……….. ,………&……….
2‐ The blood carries the ………… & ……… to all the body cells.
3‐ There is a ……………..between each atrium & ventricle.
4‐ The blood comes out of the heart through ……………. & return back to it through
……………….
5‐ The blood comes back from the lungs to the heart through the ………………..
6‐ The blood comes out of the heart to all the parts of the body through ……………..
[2]Give the scientific term:‐
1‐ The side of the heart that contains oxygenated blood. (…....………………)
2‐ Blood vessels carry the blood from all parts of the body to the heart.
(…....………………)
3‐ A component of the blood that forms the blood clot. (…....………………)
4‐ The system which carries the digested food & oxygen to all the body cells.
(…....………………)
5‐ The upper chambers of the heart. (…....………………)
6‐ The lower chambers of the heart. (…....………………)
[3]Give reasons for:‐
1‐ There is a valve between each atrium & ventricle.
………………………………………………………….…..........................
2‐ The capillaries have very thin walls.
………………………………………………………….…..........................
3‐ The blood contains red blood cells.
………………………………………………………….…..
[4] Complete the table:‐
Points of
comparisons
Arteries Veins
1‐ Transfer the blood
2‐ Thickness
3‐ examples
‐ from heart to body cells
‐ thick
‐ ……………...........……..
‐ ………….....…………
‐ ……….....…………….
‐ ………..…&…...……..
[5] Label the following diagram:‐
1‐ …………………..
2‐ …………………..
3‐ …………………..
4‐ …………………..
5‐ …………………..
6‐ …………………..
7‐ …………………..
8‐ …………………..
9‐ …………………..
10‐ …………………..
Lesson 2 : Excretion and human urinary system
[1] Complete:‐
1‐ The most important organs of the urinary system are ........................
2‐ Urinary system is located inside the .............................. cavity.
3‐ ....................... are two narrow tubes that carry urine from the kidneys to the
...........................
4‐ Two kidneys located on either sides of the ............................
5‐ The body gets rid of sweat through the .............................
[2] Write the scientific term:‐
1‐ Two narrow tubes that carry urine from the kidneys to the urinary bladder.
(.......................)
2‐ A sac that receives urine from the ureters . (.......................)
3‐ The fluid which the kidneys produces and contains harmful substances.
(.......................)
4‐ The organ that get rid excess water and salts through sweating.
(.......................)
[3] Put ( √ ) or ( ×) and correct the underlined words:‐
1‐ Skin is one of excretory organs.
.........................................................................................
2‐ Urinary system is located inside the chest cavity.
.........................................................................................
3‐ Urinary bladder is the main organ of the urinary system.
.........................................................................................
4‐ Two lungs excrete carbon dioxide and excess water in the form of vapor.
.........................................................................................
5‐ Sweat has salty taste.
.........................................................................................
[4] Give reasons:‐
1‐ Skin is one of the excretory organs ?
................................................................................................................
2‐ Sweat has a salty taste?
...............................................................................................................
Unit 3 : The Soil
Lesson 1 : Soil components
[1] Complete:‐
1‐ Soil is a thin ............................ layer covers the ........................
2‐ From the soil components ...................... ,................. and ..................
3‐ The decayed organisms mixed in soil component is known as ......................
4‐ Water and ........................ break down rocks into small pieces.
5‐ Some spider and ........................ dig tunnels in the soil which allow
............................ , ...................... and nutrients to pass easily through the soil.
[2] Write the scientific term:‐
1‐ The decoyed organisms mixed in soil component. (.......................)
2‐ A thin non compacted superficial layer which covers the Earth’s crust.
(.......................)
3‐ Worms dig tunnels in the soil. (.......................)
[3] Give reasons:‐
1‐ The Earth worms that live in the soil have a great importance?
............................................................................................................
2‐ Roots are important for the soil.
............................................................................................................
لخمسة ابتدائى الترم الثانى
