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Fourth Grade (Grade 4) Circulatory and Immune Systems Questions

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Grade 4 Circulatory and Immune Systems
Your heart
  1. is a muscle.
  2. carries carbon dioxide to your cells.
  3. holds your emotions.
  4. all the above
Grade 4 Circulatory and Immune Systems
Your heart's job is to
  1. make heat to keep your body warm.
  2. make you strong.
  3. move blood to all parts of your body.
  4. help you breathe.
Grade 4 Circulatory and Immune Systems
When blood passes through the                , it exchanges oxygen and carbon dioxide.
  1. arteries
  2. veins
  3. heart
  4. capillaries
Grade 4 Circulatory and Immune Systems
Your heart is about the size of a closed fist.
  1. True
  2. False
Grade 4 Circulatory and Immune Systems
Oxygen is carried to each cell of your body by
  1. food.
  2. the trachea.
  3. mucus.
  4. blood.
Grade 4 Circulatory and Immune Systems
What is the job of the heart?
  1. regulate our breathing
  2. pump blood through the whole body
  3. carry nutrients to our organs
  4. take up space by our lungs
Grade 4 Circulatory and Immune Systems
The heart is the main organ in the respiratory system.
  1. True
  2. False
Grade 4 Circulatory and Immune Systems
A child's heart beats, on average, between 80 and 120 times a minute.
  1. True
  2. False
Grade 4 Circulatory and Immune Systems
Why does your heart rate change?
  1. It depends on the time of day.
  2. It depends on what activity you are doing.
  3. It depends on your age.
  4. It depends on what you eat.
Grade 4 Circulatory and Immune Systems
The heart helps a person breathe air in and out of the lungs.
  1. True
  2. False
Grade 4 Circulatory and Immune Systems
The human heart is typically located in the center of the chest, slightly to the
  1. left.
  2. right.
Grade 4 Circulatory and Immune Systems
How many chambers does your heart have?
  1. 2
  2. 3
  3. 4
  4. 5
Grade 4 Circulatory and Immune Systems
The            heart            and blood vessels make up the circulatory system.
Grade 4 Circulatory and Immune Systems
Which part of the circulatory system pumps blood to all body parts?
Grade 4 Circulatory and Immune Systems
Your                 is the organ that pumps blood.