make a weather vane
Today we’re using wind and magnetic forces in our STEAMwork design + build challenge. Follow along with Aubrey and build your own weather vane to track wind direction, and maybe even make some predictions of your own!
Surface area is the amount of space covering the outside of a three-dimensional shape.
experiment with balance
A balance point can be symmetrical or asymmetrical. Create a mobile for your room with recycled materials or try balancing a pencil on your nose with two pieces of wire and two clothespins.
earth’s magnetic field
You can use Earth’s magnetic field to tell you where you want to go. A compass needle aligns with Earth’s magnetic field. People can navigate by finding magnetic north. If you know where north is, you can figure out how to get anywhere. A compass is great for finding your way when you’re out in the field!
The magnetic field has north and south poles. The magnetic poles do not exactly match the geographic poles. So the North Magnetic Pole is not the same as the geographic North Pole. The same is true of the South Pole. The magnetic field is created by the movement of molten metal in the outer core. Earth’s magnetic field extends several thousand kilometers into space. It shields us from harmful radiation from the Sun.