Grade 5 · Science · Unit 1 of 12
Healthy Choices
Food, sleep, air and technology
What your child practises
How sleep, activity, air quality, sun, sound and food choices affect health, how technologies help or harm, and reading labels.
Ontario Curriculum expectation: B1.1–B1.3 · factors and technologies that affect health, and food literacy
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
Why do doctors use X-rays?
- To see bones and other parts inside the body
- To measure how fast you can run
- To listen to your heartbeat
Show answer
To see bones and other parts inside the body
Hint: X-rays pass through soft tissue but are blocked by bone, making a picture of the inside.
Question 2
What does sunscreen help protect your skin from?
- Harmful ultraviolet (UV) rays from the Sun
- Germs in the air
- Loud noise
Show answer
Harmful ultraviolet (UV) rays from the Sun
Hint: UV rays can burn skin. Sunscreen blocks or absorbs some of them.
Question 3
What does a Nutrition Facts table on a food package tell you?
- Where the food was grown
- How much of each nutrient is in one serving
- When you should eat it
Show answer
How much of each nutrient is in one serving
Hint: It lists things like sugar, sodium and fibre for a set serving size.
Question 4
About how much sleep does a child aged 5 to 13 need each night?
- 9 to 11 hours
- 6 to 7 hours
- 4 to 5 hours
Show answer
9 to 11 hours
Hint: Growing bodies and brains need more sleep than adults do. Canadian guidelines suggest 9 to 11 hours.
Question 5
An ad shows a sugary snack with cartoon characters. Which food-literacy skill helps most?
- Choosing the brightest package
- Buying whatever is shown most often
- Asking what the ad wants me to do, then checking the label
Show answer
Asking what the ad wants me to do, then checking the label
Hint: Ads are made to sell things. The label gives facts you can compare.
Question 6
Sitting hunched over a tablet for hours can strain which body parts?
- Knees and ankles only
- Teeth and ears
- Neck and back
Show answer
Neck and back
Hint: A bent posture holds the neck and back muscles in one position for too long.