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15
×
Which of these is the safest location to use an electrical device?
Outside in the rain
In a bathroom
Dry place
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15
×
Why should we never use electrical devices in the bath?
Devices get dirty
Devices won’t work underwater
It uses more electricity
Water conducts electricity and can cause shock
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15
×
Materials made of ceramic, plastic and cork are electrical _____.
conductors
insulators
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15
×
What is pure water
bottled water
boiled water
water that has dissolved salt in it
water that has no impurities or dissolved substances in it
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thief
Give points!
5
10
15
20
25
×
gold
Win 50 points!
Okay!
×
fairy
Take points!
5
10
15
20
25
×
baam
Lose 5 points!
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15
×
Which material should NOT be used in a wire?
Copper
Glass
Iron
Aluminum
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seesaw
Swap points!
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seesaw
Swap points!
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gift
Win 15 points!
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×
baam
Lose 25 points!
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15
×
Why can plants, animals and humans conduct electricity?
Because they are made of metal
Because they contain pure water
Because they contain water with salts dissolved in it
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15
×
What is the main risk of using electrical items near water?
Noise
Fire
Short circuit
Electric shock
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15
×
What happens if you touch a live wire with wet hands?
The wire melts
You may get an electric shock
Nothing happens
You clean the wire
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15
×
Which metal is commonly used in electrical circuits?
Gold
Silver
Zinc
Copper
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15
×
Which set of objects cannot conduct electricity?
wooden toy, glass, coin
plastic spoon, metal fork, cork
key, paper cup, cork
book, cork, ceramic bowl
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15
×
Which statement is TRUE about insulators?
They are all metallic
They generate electricity
They speed up electric current
They stop electricity from passing through
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banana
Go to last place!
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fairy
Take points!
5
10
15
20
25
×
gift
Win 20 points!
Okay!
×
lifesaver
Give 20 points!
Oops!
15
×
Rubber is used to cover the metal wire because it is...
Flexible
An insulator
Colorful
A conductor
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15
×
Why are kitchen appliances designed with insulated handles?
For safety during use
To improve cooking
For style
For heating
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