Test:3rd Grade Science

1.

What problem is this junkyard magnet solving?

Electromagnet, Magnet, Iron, Junk Yard

他们正在很多s of heavy materials slowly and difficultly.

他们正在很多s of light materials quickly and easily.

Junkyard magnets do not help solve any problems.

他们正在很多s of heavy materials quickly and easily.

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