Since forces are invisible, we must study them by observing their effects on matter. The force of magnetism, for example, affects matter in a definite and characteristic way. The space in which these effects can be measured is called the magnetic field. In a field such as this, the magnitude, or intensity, of the force and its direction can be measured by objects that are affected by it. In the case of magnetism, te objects are compasses and iron filings. Using this kit and the materials contained within, students will study a magnetic field sphere with a magnet embedded in its center, and relate their findings to the properties and function of the earth's magnetic field. The kit includes a plastic sphere (1.5" diameter) with alnico magnet embedded in the center, a 2.5" diameter petri dish, a jar of iron filings, one ceramic bar magnet, and a 1.5" diameter compass. Following the procedures outlined in the experiment guide will allow students to visualize the earth's magnetic field. Makes a great classroom or science fair experiment.
This magic bird defies gravity before your very eyes!
This kit includes several different projects that demonstrate the power of magnets!
The Duncan Phoenix Diabolo features a stable, hard rubber shell that retains its shape.
This black scorpion specimen is great for the classroom setting!
Build 14 assorted solar robots, some of which can travel over water!
Ever wonder how to survive in the wilderness? These cards can help!