| A | B |
|---|
| electromagnets | a piece of iron with wire wound around it. |
| squinted | to have partially closed the eyes |
| observe | to make careful study of. |
| crane | a large machine with a long arm that can be moved up and down and in a circle |
| hypothesis | somehting that is suggested as being true for the purposes of further investigation |
| munchkin | a small person |
| positive | having one of two opposite kinds of electric charge |
| negative | having one or two opposite kinds of electric charge |
| practically | nearly; almost |
| conclusions | decisions made after thinking and experimenting |
| scientific method | an accepted process for scientific investigation |
| terminal | either end of a battery, through which electricity is connected |
