Want to see correct answers?
Login or join for free!
  Biology Worksheets
Looking for Biology worksheets?
Check out our pre-made Biology worksheets!
Share/Like This Page
Filter By Grade

You are browsing Grade 3 questions. View questions in All Grades.

Grade 1 Grade 2 Grade 3 Grade 4 Grade 5 Grade 6 Grade 7 Grade 8 Grade 9 Grade 10 Grade 11 Grade 12 College Continuing Education

Browse Questions

Third Grade (Grade 3) Respiration, Digestion, and Excretion Questions

You can create printable tests and worksheets from these Grade 3 Respiration, Digestion, and Excretion questions! Select one or more questions using the checkboxes above each question. Then click the add selected questions to a test button before moving to another page.

Grade 3 Respiration, Digestion, and Excretion
The                 are the organs that help us breathe in air.
  1. kidneys
  2. lungs
  3. intestines
Grade 3 Respiration, Digestion, and Excretion
When you exercise, your body needs more                , so you breathe faster.
  1. oxygen
  2. water
  3. carbon dioxide
  4. speed
Grade 3 Respiration, Digestion, and Excretion
We get energy from
  1. running.
  2. sitting quietly.
  3. eating food.
Grade 3 Respiration, Digestion, and Excretion
The two types of ways that animals can breathe are by using their
  1. lungs or kidneys.
  2. lungs or gills.
  3. gills or eyes.
  4. lungs or legs.
Grade 3 Respiration, Digestion, and Excretion
The name of the tube that is responsible for carrying your food to your stomach is             esophagus            .
Grade 3 Respiration, Digestion, and Excretion
Your           Stomach           is a bag made up of muscles that churns food.