That is, if you observe the spectrum of a star and can determine the wavelength where the emission peaks (Î»max), you can calculate that starâs temperature. Here is another copy of the plot that we studied in Lesson 3: Figure 4.1: Two-dimensional plot of the spectrum of a blackbody with different temperatures.
Igneous rocks usually contain the most crystals. The longer it takes the magma to cool, the larger the crystals.
THIS IS YOUR BEST ANSWER: This is how the rate affects the the size of crystals formed in rocks... Rocks that have cooled slowly, have more time to create/form crystals. Rocks that cool very fast will more than likely not have crystals, because there was not enough time for them to form. Look at granite. Comes from inside the earth and cools very quickly.