Below are several blocks that use if and if-else. Predict what each one will do and discuss it with your neighbor. Once you've done so, you try running each of the blocks, which can be found here.

You'll notice that a couple of the scripts below use the abs () block. This block actually allows you to use many different mathematical functions. It shows up in the palette as sqrt (10). Just click the drop-down menu to select which function to use. "abs" is short for "absolute value." In case you're not already familiar, the absolute value of a number is just that number turned positive. For example, abs(10) is just 10, while abs(-2.5) is 2.5.

a mysterious block

a mysterious block

a mysterious block

a mysterious block