Today, Jonathan reviewed the phases of the moon and learned new vocabulary. We discussed how half of the moon's surface is always lit up, or 'illuminated,' by sunlight - that just how much of that light we can see from Earth changes every day, and that these are called 'moon phases.' He learned that the moon does not 'radiate,' or give off its own light, but that the moon's surface reflects the sun's rays. We then performed a hands-on exercise using a flashlight, 2 balls, (one of which was an orange), and a globe to represent the Earth. We used these materials to demonstrate how the moon is illuminated differently depending on how the sun reflects off it as it rotates around the Earth. Jonathan enjoyed watching the phases change using the light source and materials in a darkened room to illustrate the different phases.