Heart Rate Project

123456789101112
Across
  1. 2. Blood goes to this organ to obtain oxygen
  2. 6. What nutrients is needed for respiration?
  3. 7. Name the system which contains the heart and the blood
  4. 8. Exercise ______ the heart rate.
  5. 11. What carries oxygen around the body?
  6. 12. What colour blood?
Down
  1. 1. Respiration releases ______
  2. 3. How many times does the heart pump blood around the body?
  3. 4. This blood vessel carries blood back to the heart
  4. 5. How many chambers does the heart contain?
  5. 9. dioxide we breath this gas out as a product of respiration
  6. 10. This blood vessel blood away from the heart
  7. 11. What is the unit for heart rate?