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First Grade (Grade 1) Respiration, Digestion, and Excretion Questions

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Grade 1 Respiration, Digestion, and Excretion
Which of the following is part of the digestive system?
  1. brain
  2. heart
  3. stomach
  4. lung
Grade 1 Respiration, Digestion, and Excretion
When you eat your           Stomach          mixes your food with chemicals made by your body, then churns up your food into smaller parts.
Grade 1 Respiration, Digestion, and Excretion
The respiratory system helps us                ?
  1. eat
  2. sleep
  3. think
  4. breathe
Grade 1 Respiration, Digestion, and Excretion
There are two of these on my nose. I breathe and smell through them.
  1. Eyelashes
  2. Nostrils
  3. Lips
Grade 1 Respiration, Digestion, and Excretion
My nose is lined with tiny                . They keep me from breathing in dust and dirt.
  1. hairs
  2. fingers
  3. taste buds
Grade 1 Respiration, Digestion, and Excretion
Fish have         gills         that allow them to breathe underwater.
Grade 1 Respiration, Digestion, and Excretion
Humans need       air      to breathe.
Grade 1 Respiration, Digestion, and Excretion
My tongue is covered with these.
  1. eyelashes
  2. fingerprints
  3. taste buds
Grade 1 Respiration, Digestion, and Excretion
Your body can't use every part of the food you eat. The waste comes to the                   Large intestine                   before it leaves your body.
Grade 1 Respiration, Digestion, and Excretion
Where does digestion begin?
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