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مراجعة ساينس2012 الترم الثانى ثالث ابتدائى لغات

Questions


1) Complete :-
1- Energy is………………………………………
2- Light is ……………………………when it fall on a mirror.
3- The different types of energy are ……………………………, ……………………………, and …………………………….
4- A thing that work needs …………………………….
5- Rainbow appears in the sky after …………………………….
6- The ……………………………is a mixture of seven colours.
7- We can't see without …………………………….
8- The seven colors in the sky are called …………………………….
9- The banana reflects a ……………………………light colour.
10- White objects ……………………………all light colours .
11- ……………………………energy is needed to operate devices.
12-The energy of moving bodies is called ……………………………energy.
13- Ineed more energy when I do ……………………………work.
14- ……………………………energy is produced from the cassette.
15- Light makes us able to …………………………….
16- Light is ……………………………when it passes through a glass of water.

17- ……………………………is the main source of light on Earth.
18- …………………and ……………………are from natural sources of light.
19- Sources of light divided into ……………… and …………………sources.
20- ………………, ……………… and ……………… are artificial sources of light.
21- A ……………… reflects light.
22- The white light consists of ……………….
23- ……………… energy makes us able to see .
24- Tomato reflects a ……………… light colour.
25-……………… is one of the energy type.
Or ………………
Or ………………
26- Spectrum colours are ………………, ………………, ………………, ………………, ………………, ……………… and ……………….
II) Put (√) or ( ×):-
Spectrum colours are five. ( )
Athing that does work needs energy. ( )
We need energy to operate devices. ( )
There is only one type of energy. ( )
The sun is a man-made source of light. ( )
Light is one of the energy types. ( )
Energy is the capacity to do work. ( )
Light is refracted when it falls on a mirror. ( )
We can see without light. ( )
Light energy makes us able to hear. ( )
Laser is from artificial sources of light. ( )
Black objects reflect all light colours. ( )
The lettuce reflects a yellow light colour ( )
The seven colours in the sky are called clouds. ( )
White light consists of eight colours. ( )
Rainbow appears in sky after rain. ( )
White objects reflect all light colour. ( )
Chemical energy is needed to operate devices. ( )
I need more energy when I do small work. ( )
A mirror reflects light. ( )
Sound energy is produced from the cassette. ( )
Chemical energy as found in food. ( )
A strawberry reflects a red light colour. ( )
Candle, torch and electric bulb are man-made sources of light. ( )
The sun is the main source of light on Earth. ( )
There are different types of energy. ( )

III) What is the type of energy produced from?





……………………… ……………………… ………………………




……………………… ……………………… ………………………






………………………



IV) Choose the correct answer :-
Light makes us able to [ see – hear – both of them].
Light is [refracted - reflected – disappeared] when it falls on mirror.
White light consists of [ 6 - 7 - 8 ] colours.
[Energy – Toys ] is the capacity to do work.
The seven colours in the sky are called [ green – rain bow – clouds].
White objects [reflect – absorb] all light colours.
The banana reflects a [ red – yellow – blue] light colour.
The [sun – moon ] is the main source of light on Earth.
When light passes through a glass of water, it is [reflected – refracted].
Laser is a [natural – artificial] source of light.
[Electric –sound – chemical] energy is needed to operate devices.
[Candle – Stars – Electric bulb] are natural sources of light.
We can't see without [light – sound – both of them]
The energy of moving bodies is called. [ light – kinetic – magnetic] energy.
A strawberry reflects a [red – blue – yellow] light colour.
Black objects absorb [all colours – no colours - some colours].
[Torch – sun – stars] is a man – made source of light.
The [white light – sound] is a mixture of seven colours.
[ Rain bow- clouds moon ] appears in the sky after rain.
When I do more work, I need [more – small} energy.
A thing that works needs [energy – water – air].
V- Write the scientific term:-
The capacity to do work. [……………………]
The energy is produced from the sun. [……………………]
The energy of moving a car. [……………………]
The energy needed for a lamp to work. [……………………]
The energy produced from the lamp. [……………………]
The main source of light on Earth. [……………………]
The energy which makes us able to see. [……………………]
The seven colours that appear in the sky after rain. [………………]
The light which consists of seven colours . [……………………]
The seven colours which are separated from white light.

[……………………]



Answers


1) Complete :-
1- Energy is the capacity to do work.
2- Light is reflected when it fall on a mirror.
3- The different types of energy are sound energy, light energy, magnetic energy , and chemical energy.
4- A thing that work needs energy.
5- Rainbow appears in the sky after rain.
6- The white light is a mixture of seven colours.
7- We can't see without light.
8- The seven colors in the sky are called rainbow.
9- The banana reflects a yellow light colour.
10- White objects reflect all light colours .
11- Electric energy is needed to operate devices.
12-The energy of moving bodies is called kinetic energy.
13- Ineed more energy when I do more work.
14- Sound energy is produced from the cassette.
15- Light makes us able to see.
16- Light is refracted when it passes through a glass of water.

17- The sun is the main source of light on Earth.
18- Sun and stars are from natural sources of light.
19- Sources of light divided into natural and artificial sources.
20- Candle , torch and electric bulb are artificial sources of light.
21- A mirror reflects light.
22- The white light consists of seven colours .
23- Light energy makes us able to see .
24- Tomato reflects a red light colour.
25-Sound energy is one of the energy type.
Or Electric
Or Magnetic
26- Spectrum colours are red , orange , yellow , green , blue , indigo and violet.
II) Put (√) or ( ×):-
Spectrum colours are five. (×)
Athing that does work needs energy. (√)
We need energy to operate devices. (√)
There is only one type of energy. (×)
The sun is a man-made source of light. (×)
Light is one of the energy types. (√)
Energy is the capacity to do work. (√)
Light is refracted when it falls on a mirror. (×)
We can see without light. (×)
Light energy makes us able to hear. (×)
Laser is from artificial sources of light. (√)
Black objects reflect all light colours. (×)
The lettuce reflects a yellow light colour (×)
The seven colours in the sky are called clouds. (×)
White light consists of eight colours. (×)
Rainbow appears in sky after rain. (√)
White objects reflect all light colour. (√)
Chemical energy is needed to operate devices. (×)
I need more energy when I do small work. (×)
A mirror reflects light. (√)
Sound energy is produced from the cassette. (√)
Chemical energy as found in food. (√)
A strawberry reflects a red light colour. (√)
Candle, torch and electric bulb are man-made sources of light. (√)
The sun is the main source of light on Earth. (√)
There are different types of energy. (√)

III) What is the type of energy produced from?





(heat energy) (kinetic energy) (light energy)




(kinetic energy) (kinetic energy) (sound energy)






(sound energy)



IV) Choose the correct answer :-
Light makes us able to [ see – hear – both of them].
Light is [refracted - reflected – disappeared] when it falls on mirror.
White light consists of [ 6 - 7 - 8 ] colours.
[Energy – Toys ] is the capacity to do work.
The seven colours in the sky are called [ green – rain bow – clouds].
White objects [reflect – absorb] all light colours.
The banana reflects a [ red – yellow – blue] light colour.
The [sun – moon ] is the main source of light on Earth.
When light passes through a glass of water, it is [reflected – refracted].
Laser is a [natural – artificial] source of light.
[Electric –sound – chemical] energy is needed to operate devices.
[Candle – Stars – Electric bulb] are natural sources of light.
We can't see without [light – sound – both of them]
The energy of moving bodies is called. [ light – kinetic – magnetic] energy.
A strawberry reflects a [red – blue – yellow] light colour.
Black objects absorb [all colours – no colours - some colours].
[Torch – sun – stars] is a man – made source of light.
The [white light – sound] is a mixture of seven colours.
[ Rain bow- clouds moon ] appears in the sky after rain.
When I do more work, I need [more – small} energy.
A thing that works needs [energy – water – air].
V- Write the scientific term:-
The capacity to do work. [energy]
The energy is produced from the sun. [light energy]
The energy of moving a car. [kinetic energy]
The energy needed for a lamp to work. [ Electric energy]
The energy produced from the lamp. [light energy]
The main source of light on Earth. [the sun]
The energy which makes us able to see. [ light energy]
The seven colours that appear in the sky after rain. [rain bow]
The light which consists of seven colours . [white light]
The seven colours which are separated from white light.
[spectrum colours]


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