How to play the game "Sizing things down"

Check out this science tutorial video that demonstrates how to play the game "Sizing Things Down." This is an instructional video showing how to do the demonstration, "Sizing Things Down" about the relative sizes of different things. This game introduces children to negative numbers and helps them understand the relationships of size among various objects. For example, a redwood is bigger than a red blood cell, but the universe is bigger than a redwood. Have fun playing the game Sizing Things Down.