When we returned from spring break, we began a science unit focused on magnetism. Your second grader should be able to explain to you (so far!):
- Magnetism is an invisible force that can go through solid objects, as well as travel along a piece of metal that has iron in it.
- Magnets have two poles, north and south.
- Opposite poles repel, and like poles attract.
- The Earth is a giant magnet, because of the iron in its core.
- A compass works because it is a magnet responding to the giant Earth magnet.
- Magnets have various strengths.
- Magnets are attracted to other magnets, as well as items with iron (including steel), nickel, and cobalt.
- One way you can make a magnet is to magnetize a piece of metal, like a paperclip, by rubbing it (in one direction only!) on a magnet.
Next week we will conduct our own invented experiments with magnets, as well as create electromagnets. Second graders are basing their writing on our experiments, as well as learning more about the scientific process.
And here are some of our pictures of learning:
