Books etc

Home-made compass

Make your own compass Materials Needed A small sewing needle or a straightened paperclip. A magnet. A small bowl of water. A piece of cork, foam, or a small leaf (anything that floats). Instructions Magnetise the Needle Stroke the needle in one direction onl...…
in exercises

Compass

A compass is a tiny magnet that can spin around! It’s usually inside a round case with directions North, South, East, and West) marked on it. The compass needle always tries to point toward the Earth’s magnetic South Pole, so you can use it to find your way around. If you put a magnet close to a...…
in macroscopic concepts