Question

gayles teacher gave her a mixture of sand and iron filings. gayle decided to use an electromagnet to separate the mixture. she turned on the magnet and ran it through the sand. then she pulled it out, held it over a container, and turned it off. what happened when gayle turned off the electromagnet? a. iron filings from the container stuck to the magnet. b. iron filings fell from the electromagnet into the container. c. sand fell from the electromagnet into the container. d. sand from the container stuck to the magnet.

Explanation:

An electromagnet attracts iron - filings when on. When turned off, it loses its magnetism. So the iron - filings that were attracted to it will fall off. Sand is not magnetic and is not affected by the electromagnet.

Answer:

B. Iron filings fell from the electromagnet into the container.