What do you notice about the words sunrise, sunscreen, suntan, and sunset? Yes, they all have the word SUN in them. In this video, we learn all about compound words. A compound word is when two smaller words join together to make a longer word. The words SUN and RISE unite to make a new word, sunrise! Usually, the smaller words give us a clue as to what the longer compound word means. However, there are times when the smaller words don't really help us learn the meaning of the compound word, like pineapple. Pineapples have nothing to do with pine trees, and they aren't apples either. Hmm, can you think of any other silly compound words?