Go to All Systems Go! to play the online activity about human body systems. Be sure to check out the How to Play and Learn More sections of the activity before you start.

Remember, the goal of this activity is to drag the correct organs of the body system (that appear in the box on the right) into Arnold's body. If an incorrect organ is placed into the body, all of the organs will move out of Arnold and you will have to start over for that system.

Once you are finished playing the game, click the Done button and return to the E-Sheet.

Note: The activity will start from the beginning if you visit the Learn More or How to Play sections in a middle of the activity.

Answer these questions based on what you learned from playing the game and from reading the Learn More section.

The main point of this lesson is to understand that there are different systems within the human body and that these systems work independently and together to form a functioning human body.

Revisit a couple questions that you answered before you did the online activity (see below). Answer them again with your new knowledge. You will have five to ten minutes to do this and then you will share what you wrote down before and after doing the online activity.

• Who remembers what it’s called when a group of things function together as a whole?
  
• Can you think of an example of a system? For that system, name some of its parts.
  
• What six body systems did you learn about in this lesson?

Next, think about what might happen if part of a body system were missing. Come up with a hypothesis about how that system would function. Then, create a poster that shows a body system working properly and one that is not because it is missing one or more of its parts.

Once you are done with your poster, share it with your class. Also take time to view your classmates’ posters and discuss the different systems shown.