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lesson3unit2!

QuestionAnswer
electromagnets a piece of iron with wire wound around it. it becomes a magnet when an electric current is passed through the wire.
squinted the partially close the eyes.
observe to make a careful study of.
crane a large machine with a long arm that can be moved up and down and in a circle. Cables at th end of the crane's arm are used to lift and move heavy objects.
hypoothesis something that i suggested as being true for the purposes of further investigation.
positive having one of two opposite kinds of electric charge +
negative having one of tw3o opposite kinds of electric charge -
practically nearly; almost.
conclusions something decided after thinking and experimenting.
Created by: 2000rockstars
Popular English Vocabulary sets

 

 



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