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15
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What is the name of the trains that are made of magnetic levitation?
maglev trains
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15
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Label the two types of magnets
natural and artificial
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True or false.All magnetic materials are metallic.
true
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Complete : All magnets has two ...................................
opposite poles
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True or false : The earth has a core of solid iron that acts like a gigant magnet.
false. core of liquid iron
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15
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Where did they discover the first natural magnets ?
Ancient Greece and China
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15
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A............................... is a instrument used for finding your way
compass
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15
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Complete.We also find naturally magnetic pieces of magnetitte called........................
lodestone
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lifesaver
Give 10 points!
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gold
Win 50 points!
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rocket
Go to first place!
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lifesaver
Give 25 points!
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15
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True or false. The compass can tell us about the weather
false
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seesaw
Swap points!
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gift
Win 25 points!
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rocket
Go to first place!
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lifesaver
Give 5 points!
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boom
Lose 50 points!
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gift
Win 10 points!
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gift
Win 15 points!
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lifesaver
Give 20 points!
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15
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True or false.When we close a circuit , the object becomes an electromagnet
true
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15
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True or false.Magnetic field is the area around a magnet where the force has an effect.
true
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True or false.Electromagnets are objects that didnt act like magnets when an electrical current passes through them.
false
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15
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Many .............................................. like blenders use magnets to convert electricity.
home appliances
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