Write the scientefic term : energy stored in the batteries
Chemical energy
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15
Write the scientefic term : The output energy in the electric iron.
Thermal energy
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15
Arrange the energy chain in the mobile phone :
1 sun 2 cutting trees 3 coal 4 electric power stations 5 battery in the mobile 6 light and sound
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banana
Go to last place!
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gold
Win 50 points!
Okay!
fairy
Take points!
5
10
15
20
25
lifesaver
Give 15 points!
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15
Complete : solar panels change - - - - - ( energy to - - - - energy
Solar energy to electric energy
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15
What is meant by : Law of conservation of energy
Energy cannot be created or destroyed, but it can change from one form to another.
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15
Write the scientefic term : it is the main source of energy on Earth
The sun
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thief
Give points!
5
10
15
20
25
magnet
Take 20 points!
Okay!
shark
Other team loses 5 points!
Okay!
baam
Lose 10 points!
Oops!
seesaw
Swap points!
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magnet
Take 25 points!
Okay!
rocket
Go to first place!
Okay!
banana
Go to last place!
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15
Complete : When batteries run out, we must - - - - - - - them.
Recharge or replace
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15
True or false : the input energy in solar panels is electric energy
False ( solar)
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15
Wtite the scientefic term : Energy produced due to friction
Thermal energy
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15
True or false : kinetic energy produced from the hair dryer is wasted energy
False ( sound energy is wasted energy)
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15
The most famous robot sent to Mars is called - - - - - - - -
Curiosity Rover
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15
Which of the following statements is correct? a. Energy can't be changed from one form to another. b. Energy can be changed from one form to another. c. Energy may be lost or destroyed. d. Energy can be created.