Science
6th Primary Sheet 2
1
A- Complete:
1- Sound travels through ………..,…………
And ………
2- When you speak, your vocal cords………
3- …….reflects the sun light falling on, thus it looks lighted
4- Sun light is formed of …….. Colures and they are called
………..
B- Put ( √ ) or ( × )
1- The rain bow is formed in the sky ( )
2- Sound can only travel through a material medium ( )
3- Sound travels through vacuum ( )
4- The light refracts when it passes from one transparent
medium to another ( )
C- Give reason for:
1- Sound isn't heard on the moon surface
2- The electric lamp is an artificial source of light
3- The moon appears lighted the sky during the night
D- Write the scientific term:
1- It is an external factor affects our ear causing
sensation of hearing ( )
2- They vibrates in the larynx and produce sound( )
E- What are the effects of noise (sound) pollution?
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Science
6th Primary Sheet 2
1
F- Complete:
1- …………is the main source of heat
2- Heat is always transferred from……..body to ………..body
3- ……… and……….are some sources of heat
4- Heat is transferred in liquids by……..
G- Give reason for:
1- Your hand feels hot when you touch a cup of tea
2- Your hands get warmer when you rub your hands
together
H- What happens when?
a- Your hand touches a piece of ice
b- Your hand touches a glass of hot water
I- Put ( √ ) or ( x):
1- Friction generates heat ( )
2- The rainbow is formed in the sky before rain ( )
3- Sound travels through vacuum ( )
4- Heat transferred from the cold to the hot body( )
J- Write the scientific term:
1- The main source of heat on the surface of earth ( )
2- Energy makes us feel hot or cold ( )
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Science
6th Primary Sheet 2
1
K- Complete:
1- ……… and……..are heat conductors
2- ……….and ………are heat insulators
3- Iron and copper are ……..conductors of heat
4- Solid bodies expand by …….and contract by……
5- You can make use of the property of expansion in
liquids is making……….
L- Put ( √ ) or ( x ):
1- There is a constriction in a clinical thermometer ( )
2- We use alcohol to sterilize clinical thermometer ( )
3- Wood, glass are heat conductors ( )
4- Copper and aluminum are heat insulators ( )
M- Write the scientific term:
1- Materials that conduct heat ( )
2- Materials that don't conduct heat ( )
3- A liquid that is used in thermometer ( )
4- A device used to measure the temperature of liquids
( )
N- Give reasons for:
1- Hands of cooking pots are made of plastic or wood
2- The clinical thermometer is not used to measure the
temperature of boiling water
O- A- What is the use of the Celsius thermometer?
B- What is the difference between heat conductors and
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Science
6th Primary Sheet 2
1
heat insulators?
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