In this activity, we will introduce children to the colors of the sky. Children love to look at clouds. Here we will focus in on the sky in which clouds float. Children will learn why the sky has such a wide range of colors.

Whether naturally occurring or set by humans, fires' effects reach far beyond ravaged lands. Combining satellite observations of fires with a computer model reveals the fires also affect air quality, health, and climate.

Explore using units for calculations with Normalized Difference Vegetation Index (NDVI). NDVI is a ratio of different light wavelength reflectance which can be used to map the density of green vegetation.