Grade 5 · Science · Unit 4 of 14
Heart Rate and Reaction Time
Test the body
What your child practises
Children investigate what affects breathing and heart rate, and how fast the body responds, and learn how the excretory system works.
Prince Edward Island Curriculum curriculum outcome: Life Science: Meeting Basic Needs and Maintaining a Healthy Body · testing factors that affect breathing, heart rate and response time, and the excretory system
Sample questions
A taste of this unit. In the app, questions change every time and get easier or harder to match your child.
Question 1
Heart rate is measured in…
- kilograms
- degrees
- beats per minute
- litres per hour
beats per minute
Hint: Count beats in one minute.
Question 2
What do nerves do?
- break down food
- pump blood
- carry messages between the brain and body
- store waste
carry messages between the brain and body
Hint: They work like tiny wires.
Question 3
What does a joint allow?
- blood to be filtered
- bones to bend and move
- air to enter lungs
- food to be digested
bones to bend and move
Hint: Your elbow and knee are joints.
Question 4
Which is a medical technology that helps a person who has lost a leg walk again?
- a rain gauge
- an artificial limb
- a thermometer
- a wind vane
an artificial limb
Hint: It is also called a prosthetic.
Question 5
Which question about the body can be tested?
- Does my heart beat faster after I jog?
- Is my heart pretty?
- Do hearts have feelings?
- Is jogging fun?
Does my heart beat faster after I jog?
Hint: A testable question can be answered with measurements.
Question 6
Why do scientists repeat a response-time test several times?
- to check the results and spot patterns
- to make it harder
- to get a different person
- to wear out the ruler
to check the results and spot patterns
Hint: One trial can be a fluke.