Mary and Jim used a streak plate to test pieces of the rock. They compared their results to a streak of limonite: limonite
Mary and Jim's sample
What do you notice? What can you conclude from the test?

The streaks made by the limonite are yellow, and the streaks made by Mary and Jim’s sample are brown. Therefore, they are not the same mineral. The rock is not made of limonite.

Explanation:

PLATO

imagine a line passing through the center of earth that goes through both the north pole and the south pole. this imaginary line is called an axis. earth spins around its axis, just as a top spins around its spindle. this spinning movement is called earth's rotation. at the same time that the earth spins on its axis, it also orbits, or revolves around the sun. this movement is called revolution.