No matter where we live, each and every one of us depends on transportation to some degree. Whether it's in our own personal cars or on public transportation shared with others, transportation is an important technology developed by engineers. Our focus in this unit will be on the Maglev train!
How do you find the poles of an unmarked magnet? By experimenting with them, of course! Fourth graders have been introduced to four different types of magnets. Each of these magnets has two poles, but not all of them are labeled. Experimenting with the magnets, they were able to collect evidence to support their claim that every magnet has two poles, but where they are located depends on the type of magnet you've got!