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Fourth Grade (Grade 4) Respiration, Digestion, and Excretion Questions

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Grade 4 Respiration, Digestion, and Excretion
Grade 4 Respiration, Digestion, and Excretion
Organs that allow you to breathe
  1. heart
  2. legs
  3. lungs
  4. eyes
Grade 4 Respiration, Digestion, and Excretion
Which of these is a function of the lungs?
  1. take oxygen that your body needs from the air and put it in your bloodstream. They also take carbon dioxide that is your blood and send it out of your body.
  2. breath on it's own
  3. give your body support
  4. works in pairs to pull your bones
Grade 4 Respiration, Digestion, and Excretion
The job of the excretory systems is to                                          .
  1. help the body get rid of waste.
  2. help oxygen get to all parts of the body.
  3. help the body circulate blood.
  4. help the body use food for energy.
Grade 4 Respiration, Digestion, and Excretion
Grade 4 Respiration, Digestion, and Excretion
When the stomach has digested the food, where does it send it?
  1. small intestine
  2. large intestine
  3. bladder
  4. kidneys
Grade 4 Respiration, Digestion, and Excretion
What do the respiratory and the circulatory systems work together to do?
  1. deliver calcium to the bones
  2. deliver blood to your lungs
  3. deliver oxygen and nutrients to cells throughout the body
Grade 4 Respiration, Digestion, and Excretion
Where does the last step of digestion occur?
  1. mouth
  2. stomach
  3. small intestine
  4. large intestiine
Grade 4 Respiration, Digestion, and Excretion
The esophagus is
  1. a vein in your lung. When you swallow, food or drink travels down through the stomach into your intestines.
  2. a vein
  3. the small intestines
  4. a tube in your throat. When you swallow, food or drink travels down through the esophagus into your stomach.
Grade 4 Respiration, Digestion, and Excretion
What does saliva do?
  1. causes mechanical digestion
  2. causes chemical digesion to occur and creat a new substance
  3. makes food soft and easier to swallow
Grade 4 Respiration, Digestion, and Excretion
Grade 4 Respiration, Digestion, and Excretion
Grade 4 Respiration, Digestion, and Excretion
Grade 4 Respiration, Digestion, and Excretion
The                 has 8 muscles.
  1. stomach
  2. intestines
  3. tissue
  4. tongue
Grade 4 Respiration, Digestion, and Excretion
Grade 4 Respiration, Digestion, and Excretion
Food the body can't use is stored in the                .
  1. stomach
  2. large intestine
  3. mouth
  4. small intestine
Grade 4 Respiration, Digestion, and Excretion
Where does digestion start?
  1. In you mouth
  2. In your small intestine
  3. In your large intestine
  4. In your stomach
Grade 4 Respiration, Digestion, and Excretion
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