The slice of rock mounted on the glass slide is only ~30 micrometers ... minerals using how they appear in doubly polarized light under a microscope! Hornblende (brown) with dark reaction ...

Let's take a look at how to observe cells under a microscope ... Pop a cover slip on the slide and then put the slide onto the microscope. Take a look! Check out that strong cell wall structure.

Sweet mouth-watering fruits provide us with a healthy source of food, but that is not the reason why plants produce them. Fruit, and the seeds they protect, are crucial to species' survival. A new ...