Human Body Systems - Worksheet 3
Grade 5•Science•Human Body Systems
Aligned to: 5-LS1-1
Answer the following questions about human body systems.
1.
When you exercise, your heart beats faster and you breathe harder. Why do the circulatory and respiratory systems work together during exercise?
A.They do not work together
B.Muscles need more oxygen during exercise, so the lungs breathe faster and the heart pumps blood faster to deliver it
C.The heart controls the lungs directly
D.Exercise only affects the muscular system
2.
What would happen to a person's body if their digestive system stopped working?
A.They would still get energy from breathing
B.Their body would not be able to break down food to get nutrients and energy
C.Their bones would stop growing but everything else would be fine
D.Nothing would change if they drank enough water
3.
Which organ is part of the circulatory system?
A.Stomach
B.Heart
C.Lungs
D.Brain
4.
What does the skeletal system do?
A.Pumps blood
B.Breaks down food
C.Gives shape and protects organs
D.Helps you breathe
5.
Which body system helps you breathe?
A.Digestive system
B.Skeletal system
C.Respiratory system
D.Muscular system
6.
The digestive system helps your body get energy from:
A.Air
B.Sunlight
C.Food
D.Water only
7.
Your heart is part of the digestive system.
8.
Muscles help your body move.
9.
Your lungs are part of the respiratory system.
10.
Match each item.
1.Muscular system
2.Respiratory system
3.Skeletal system
4.Digestive system
5.Circulatory system
A.Provides shape and protection with bones
B.Moves blood through the body
C.Helps you breathe
D.Helps the body move
E.Breaks down food for energy