Lab 24: Round and Round

Warm Up: Draw and explain a model to show how the heart pumps blood to the lungs. (skip 4 lines)

Vocabulary :
1. arteries – a tubular structure that carries blood away from the heart

2. blood vessels – tubes that blood travels through

3. circulatory system – is an organ system that moves blood, nutrients, gases, and wastes to and from cells, helps fight diseases and helps stabilize body temperature and pH to maintain homeostasis

4. function – an object’s job or role

5. model – a smaller or larger version of an object that is too small or too big to observe in a classroom

6. structure – what an object is made of and how the object is shaped

7. veins – a tubular structure that carries blood to the heart

Data: Diagram (skip ½ page)

Data: Class Diagram (skip ½ page)

Analysis Questions:
1. How well did your group’s original model work? What changes did you make to improve the model? Discuss how your design showed how the heart pumps blood to the lungs and the rest of the body. (skip 5 lines)

2. a. Draw a diagram of your final model. Use arrows to show which way the water flowed. (skip ½ page)

b. Label the parts of your model that represented various organs, structures, or systems of the human body.

c. Use a red colored pencil to identify which tubing contained blood carrying more oxygen and less carbon dioxide. Use a blue colored pencil to identify which tubing contained blood carrying more carbon dioxide and less oxygen.

4. How does modeling help you understand how things work? (Skip 3 lines)