III. Write True if the statement is correct and False if it is not
1. Sun is the primary source of light
2. Opaque materials allow light to pass through them.
3. Objects can be clearly seen through transparent materials
4. Frosted glasses and windowpanes are examples of translucent materials,
5. Book, wood and cardboard are examples of opaque materials.
6. Transparent materials block the light and shadows are formed.
7. Conductors are materials that do not hold tight to their electrons and allow electrons to flow
easily through them.
8. Current electricity is called "electricity in motion".
9. Electrons flow from the power source to the electrical device and back to the power source.
10. We use current electricity at home. ​