Insulators and Conductors

A. Classify each material as a Conductor or as a Insulator. Translate into Spanish

plastic dirty water
aluminium silver
copper paper
wood silk
glass clay
iron concrete
rubber bronze
gold steel
cotton cement
B. Fill in the blanks with the words in the box below:

insulators electric field ions attract electric current negatively conductors electric charge repel positively


1. The two types of _____________________________ are positive and negative. Like charges _________________________ and unlike charges _________________________ each other.
2. An object becomes _____________________________ charged if it gains electrons and _______________________ charged if it loses electrons.
3. Electrically charged objects have an __________________________ surrounding them and exert electric forces on each other.
4. ________________________ is the flow of charges, usually electrons or _____________________.
5. Electrons can move easily in __________________________, but not so easily in _________________________.