Magnets to Solve Problems

Practice Questions

3rd Grade Science › Magnets to Solve Problems

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1

Brad and Brian must separate a mixture prepared by their teacher. She asks them which items in the container could be removed by using a magnet and why. The things they have are toothpicks, sand, pebbles, marbles, iron filings, paper clips, chocolate chips, broken crayons, and bits of notebook paper.

Which items can they remove with a magnet, and why?

2

Mindy needs to get iron filings out of a pile of sand, rice, and dirt in science class. The iron filings are tiny and fine so they blend in and disappear with the mixture. What would be the best tool to remove the filings from the sand?

3

What problem is this junkyard magnet solving?

Electromagnet, Magnet, Iron, Junk Yard

4

Nadine has a crane with a big magnet. She lowers the crane's magnet over a pile of garbage. Which object(s) are strongly attracted to the magnet?

5

What problem is this junkyard magnet solving?

Electromagnet, Magnet, Iron, Junk Yard

6

Brad and Brian must separate a mixture prepared by their teacher. She asks them which items in the container could be removed by using a magnet and why. The things they have are toothpicks, sand, pebbles, marbles, iron filings, paper clips, chocolate chips, broken crayons, and bits of notebook paper.

Which items can they remove with a magnet, and why?

7

Nadine has a crane with a big magnet. She lowers the crane's magnet over a pile of garbage. Which object(s) are strongly attracted to the magnet?

8

Mindy needs to get iron filings out of a pile of sand, rice, and dirt in science class. The iron filings are tiny and fine so they blend in and disappear with the mixture. What would be the best tool to remove the filings from the sand?

9

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Based on the table, which statement(s) is true?

10

Which situation could you help solve with a magnet?

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