Answer:

1. The When Green Flag Clicked block or commonly called Start Block, is an Events block. Scripts that wear this block will activate once the Green Flag has been clicked — these scripts can activate other scripts and enable the entire program.

2. A Motion block are color-coded medium-blue and are used to control a sprite's movement. They are available only for sprites. Block. Function. The block moves its sprite the specified amount of steps in the direction it is facing.

3. Events blocks are one of the ten categories of blocks. They are color-coded light yellow and are used to sense events, which trigger scripts to run. Event blocks are essential for every project: without the hat blocks from this category, a project would not be able to begin except by manually running scripts.

4. Looks block are color-coded purple and are used to control a sprite's appearance. The block displays a speech bubble with the specified text for the sprite that runs it, which appears on the screen for the specified amount of seconds.