Download GENERAL REVISION. on unit Two. For Fourth Prim.

GENERAL REVISION.
on unit Two.
For Fourth Prim.
-Complete the following sentences:1- …………………is the biggest body in the solar system.
2-The solar system includes…………….,…………..,………
…………….and other celestial bodies.
3-There are ……………..revolves around the sun.
4-The planet earth is located between the planet …………..and the
planet ……………….
5- There are ……………revolves around the planets.
6-The stars are …………..bodies that emit heat and light.
7-The sun seems big because it is the ………….to us.
8-Earth is the ………………planet in the solar system.
9-The sun is a…………..,but earth is a……………
10-The planets are ……………bodies that do not emit heat and light.
11-Big stars look smaller in size because they are …………….to us .
12-stars radiates …………and ………………..
13-The nearest planet is ……………,while ……………..is the
farthest planet.
14-The biggest planet in the solar system is ………….
15-The sun and the ……………..planets that revolving around it is
called ……………….
16-……………is the red planet.
17-The …………is a dark body that reflects the sunlight falling on it.
18-…………..is the cold planet .
19- ………..and…………….are the nearest two planets to the earth.
20-The planet which has colored rings around it is called ……………
21-The earth rotates around ……………and …………….
22-The earth rotates around the sun once every …………..and this is
called …………..
23-In the …………..season ,the day is longer than the night.
24-In the ……season, the day is shorter than the night.
25-In the …………and ………….. seasons ,the day is equal the night.
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26- The earth axis is ………..
27-The sequence of the four seasons happens as a result of …………..
28-The part of the earth that faces the sun is ……….while the part of
earth that does not faces the sun is …………
29-The number of day hours is not equal the number of night hours
because …………………
30-The sun seems to be risen from ………
31-The attraction force between the earth and the moon result in
………………..
32-The moon is a……………object that ……………..the sunlight .
33-The moon rotates around the ………and around the …………..
once every ……………
34- Tide and ebb happens due to the attraction between ……………,
……………..and ………………
35- The benefits of tide and ebb are …………………….,cleaning of
………….and ………..
36-Tide is high during the …………phase .
37-The return back of water to its normal level is called…………….
38-The moon is called …………..at the middle of the lunar month.
39- The moon completes its revolution around the earth in
…………..day ,while the earth completes its revolution around the
sun in about ……………day.
40- The components of air are ……………,……………,…………….
and …………..
41-Oxygen gas occupies …………….of the volume of the air .
42-The ……..…gas does not burn ,but it helps in burning.
43-The benefits of oxygen gas are ……………..and …………………
44-During photosynthesis process ,green plants take in ………….gas.
45-……………….gas is used in extinguishing fires.
46- Carbondioxide gas occupies ……….of the volume of air .
47-The main source of oxygen in air is the ………….
48-Nitrogen gas is used in …………and ……….. industries.
49-The atmospheric air contains …………gas which decreases the
effect of …………….in ……………..
50-……………….gas does not burn and does not help in burning .
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51-……………………..is the expected condition of the atmosphere in
an area during a short period of time not exceeding one week .
52- Weather factors are ………………,……………….,……………..
and …………….
53-Temperature is measured with the ……………
54-……………are formed when water evaporates by sun into water
vapour.
55- Wind speed is measured with………………
- Choose the correct answer:1- The nearest planet to the sun is…………..
( Earth –Mercury –Neptune –Jupiter)
2-The red planet is ……………….
( Mars –venus-earth –uranus)
3-The most beautiful planet is ………..
( Neptune – earth – venus –mars )
4-The earth is one of the eight planets that revolve around
the……………..
( sun-moon –itself).
5- The number of planets are ……………
( six-seven –eight-nine )
6-…………… are self shining bodies.
(moons- planets –stars )
7-The …………….reflect the light .
(stars –moons-planets )
8-The planet where we live is …………….
( earth- venus –mars )
9-The sun is considered a…………….
(planet –star-moon)
10-The farthest planet from the sun is …………………
( earth – neptun – venus )
11- The sequence of the day and the night is occurred due to ……….
a- revolution of the earth around the sun.
b - rotation of the earth around its axis .
c-rotation of the sun around its axis .
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12- The number of day hours are equal to the number of night hours
in ……………..
a- summer .
b- winter.
c- Spring.
d- all of the seasons.
13- The sequence of the seasons of the year is occurred due to ……….
a- revolution of the earth around the sun.
b- rotation of the earth around its axis .
c- rotation of the sun around its axis .
14- Day and night happen because of the rotation of the ( sun –earth )
around its axis, while the seasons of the year happen because of the
rotation of the earth around the ( moon –sun) .
15-The attraction of the earth and the moon results in ………………..
(day and night –seasons of the year –tide and ebbphases of the moon )
16-.In the middle of the lunar month, the phase of the moon is ……….
(cresent-full moon –first quadrature –second quadrature)
17-The maximum tide happens when the moon is in the ………phase.
(first quadrature-second quadrature- crescent-full moon )
18-The moon is a dark body that ………………
(absorbs light-emits light-reflects sunlight )
19-The moon rotates around the earth once every …………..
(28 days -20 days-28 hours )
20-Air consists of …………….
(oxygen-nitrogen-carbon dioxide –water vapor-all the previous)
21-Oxygen gas occupies …………….volume of air .
(1/5-4/5-2/5)
22- Carbon dioxide is used in the manufacture of ………………..
(fertilizers-ammonia gas-soft drinks and soda water)
23-Nitrogen gas helps in ……………
(decreasing combustion-combustion process-extinguishing fires)
24-The barometer is used for measuring ……………
(the temperature- wind speed wind direction –pressure )
25-……………..gas changes clear lime water into turbid .
( Oxygen –nitrogen –carbon dioxide –water vapor )
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- put ( √ ) or ( × ) in front of the following sentences:1- stars are shiny bodies that emit heat and light .
( )
2- sun is a star.
( )
3- There are seven planets that revolve around the sun.
( )
4-The earth emits light and reflects sunlight.
( )
5-The comets, asteroids, meteoroids belong to the solar system. ( )
6-The earth is one of the planets that revolve around the sun. ( )
7- The smallest planet in the solar system is mercury .
( )
8- The sun is the smallest star in the sky.
( )
9-The biggest body in the solar system is mars.( )
10- The biggest body in the solar system is the sun.
( )
11- The sun is the main source of light to us.( )
12-The closest two planets to earth are venus and mars. ( )
13- The rotation of the earth around the sun leads to the sequence of
the four seasons of the year .
( )
14-The rotation of the earth around its axis leads to the sequence of
the day and night. ( )
15-The earths axis is inclined .
( )
16-The earth rotates around its axis once every 28 hours .
( )
17-The earth rotates around the sun once every 365 1/4 day . ( )
18- The earth rotates around the sun once every 24 hours .
( )
19-The sun seems moving from east to west .
( )
20- The sun does not rotate around the sun.
( )
21-The rotation of the earth around the sun causes the sequence of day
and night.
( )
22-The earth rotates around its axis once every year.
( )
23-Tide is high when the moon is full .
( )
24-The lunar year equals 354 days.
(
)
25-The sun is considered the main reason for tide and ebb. ( )
26-There are attraction force among the celestial bodies .
( )
27-The moon rotates around its axis and around the earth twice every
28 days .
(
)
28-Tide is the returning back of water to its normal level. ( )
29-The moon is nearer to the earth than the sun.
( )
30-Air consists of oxygen and nitrogen only .
( )
31-Green plants are the main sources of oxygen on earth. ( )
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32- carbon dioxide gas is used in the manufacturing of soft drinks and
soda water.
( )
33-carbon dioxide is used in the manufacturing of ammonia . ( )
34-The weather forecast is the expected weather for along period of
time .
( )
35- When clouds are heavy ,rain is expected to fall.
( )
- Write the scientific term:1-The planet where we live.
(
)
2-Dark bodies do not emit light but they reflect the sunlight falling on
them.
(
)
3-A medium-sized star but it seems bigger than the other stars . (
)
4-The farthest planet from the sun.
(
)
5- Dark bodies revolve around the sun in fixed orbits . (
)
6-Dark body revolve around the earth and reflects the sunlight falling
on it.
(
)
7-The cold planet .
(
)
8-The blue planet .
(
)
10-Celestial bodies which are self-shining .
(
)
11-A dark body that revolves around the earth and reflects the light of
the sun.
(
)
12-A phase of the moon that appears at the middle of the lunar month.
(
)
13-The rising of water level to cover the seashores.
(
)
14-A phenomenon resulting from the attraction force between the
moon and the earth.
(
)
15- It is a mixture of different gases that surround the earth. (
)
16-A gas is very necessary for respiration and combustion process.
(
)
17-A gas occupies 4/5 of the air volume .
(
)
18-Agas turns lime water milky.
(
)
19-A gas used in the fire extinguishing.
(
)
20-It is used for measuring temperature.
(
)
21-An instrument used for measuring atmospheric pressure. (
)
22-A gas is found in air with a small ratio but it is very important for
the green.
(
)
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- Give reason for each of the following:1- The sun seems bigger to us than the other stars .
…………………………………………………………………………
…………………………………………………………………………
2- The sun is a star but Earth is a planet.
…………………………………………………………………………
…………………………………………………………………………
3- Neptune is the coldest planet .
…………………………………………………………………………
…………………………………………………………………………
4- The sun is a shining body.
…………………………………………………………………………
…………………………………………………………………………
5- The moon is a dark but it seems.
…………………………………………………………………………
…………………………………………………………………………
6- The sequence of the day and night .
…………………………………………………………………………
…………………………………………………………………………
7-The sequence of the four seasons.
…………………………………………………………………………
…………………………………………………………………………
8- The difference in the length of the day and the night during summer
and winter.
…………………………………………………………………………
…………………………………………………………………………
9- The movement of shadow at different times of day.
…………………………………………………………………………
…………………………………………………………………………
10-The number of hours of day is not equal the number of hours at night
…………………………………………………………………………
…………………………………………………………………………
11-occurrence of the phases of the moon .
…………………………………………………………………………
…………………………………………………………………………
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12 –occurrence of tide and ebb.
…………………………………………………………………………
…………………………………………………………………………
13-The moon is a dark body but we see it shiny.
…………………………………………………………………………
…………………………………………………………………………
14-The tide and ebb have many benefits.
…………………………………………………………………………
…………………………………………………………………………
15- oxygen is important for combustion processes.
…………………………………………………………………………
…………………………………………………………………………
16- Nitrogen gas is important for soil and plants.
…………………………………………………………………………
…………………………………………………………………………
- What is meant by each of the following :1-Stars.
4-Moon.
7- Ebb.
2- planets.
5-solar system.
8-Weather.
3- sun.
6-Tide.
- Compare between each of the following:1- The star and the planet .
2- The revolution of the earth around its axis and around the sun.
3- The rotation of the earth around the sun and the revolution of the
moon around the earth.
4- The tide and the ebb.
5- The importance of oxygen gas and nitrogen gas.
6- The atmosphere and the weather.
7- Winds and temperature.
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