1. A magnetic field (the pull of the magnet) will pass through materials like tape with almost no effect. The tape does not block the attraction of the magnet for the paper clip.
2. They may also have played with picking up small pieces of paper or other ... another without touching it, even without any substance in between.
3.gravity
When reminded about gravity, the see it always pulls down. Using a magnet and a paper clip on a string they see how both gravity and magnetism can work on the paperclip so it is suspended in the air. (The forces are balanced or equal).
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What have you found out:
1. A magnetic field (the pull of the magnet) will pass through materials like tape with almost no effect. The tape does not block the attraction of the magnet for the paper clip.
2. They may also have played with picking up small pieces of paper or other ... another without touching it, even without any substance in between.
3.gravity
When reminded about gravity, the see it always pulls down. Using a magnet and a paper clip on a string they see how both gravity and magnetism can work on the paperclip so it is suspended in the air. (The forces are balanced or equal).