Teachers, save “Friction: Let's see how long the top wi…” to assign it to your class.

Tap and watch the video. Tap Look at the table on page 1. Today you will experiment and observe how long a top can spin on different surfaces. Tap on each video, and count to see how many seconds the top will spin on each surface. Tap back up to page 1 and enter the number of seconds in the table. Do this for each video until all the information is entered in your table. On the last two pages, tap to hear the question. Think about your answer! Then tap and explain your thinking for each of the questions. Tap to add the work to your journal.