4RJ Tested the Strength of Magnets
4th grade students designed tests to determine how well magnets work THROUGH different objects.
Here are some of the students' conclusions:
"With what I tested, any thing more than 1cm thick would not stick. Anything less would stick." -Matthew
"Most of my objects that I tested were not able to stick because of how thick the object is." -Dylan
"If something is too dense, magnetic forces will not be strong enough to pass through the tightly packed molecules." -Theo
"All of the objects that the magnet stuck through were less than 1cm thick." -Gigi
"Overall, the magnet sticks through light /not dense material." -Octavia
"The magnet's force will effect the object more than anything else." -Adam
"How the magnet works depends on the strongness of the magnets and the thickness of the object." -Sophia