Chapter 7 Experiments: Making Magnets

Watch the experiments, predict at each pause sign, then see the results. Length: 4 min 18 s. Captions are on: use the CC button.

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• 0:00 · Introduction
• 0:13 · Two ways to make a magnet
• 0:28 · Activity 7.1 A: Stroke it
• 0:42 · Stroke it: the full motion
• 1:07 · Has the nail become a magnet?
• 1:21 · Predict!
• 1:34 · Results: stroke method
• 1:49 · Activity 7.1 B: The electromagnet
• 2:03 · Stay safe!
• 2:18 · Predict again!
• 2:31 · Results: more turns
• 2:47 · Results: more batteries
• 3:03 · A fair test
• 3:18 · Repeat for reliable results
• 3:31 · Magnets around us
• 3:47 · Activity 7.2: Create a toy
• 4:02 · Remember