Why do plants have hairs?
As we walk along a trail, we can observe the diverse world around us: trees, flowers, birds, reptiles, rocks, clouds. What an amazing world it is: colors, sounds, textures, smells. But there is another amazing world not easily seen by the human eye, a microscopic world. A glimpse at that world is seen through the microscope or magnifying glass. A weed in your garden, which you gleefully pull up and put under the microscope, may turn out to be quite beautiful and unique.