Compare Intervals of Time worksheet for students to practice ordering activities by duration and identifying longer time periods.

Let's solve this step-by-step.

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Section A: Order the activities from least to greatest time spent

We are given 8 activities with their durations. We need to convert all times into the same unit (seconds or minutes) to compare them easily.

#### List of Activities and Durations:

1. Brushing teeth – 2 minutes
2. Having a good night's sleep – 11 hours
3. Reading a story – 10 minutes
4. A day at school – 6 hours
5. On vacation with family – 1 week
6. Watching a TV program – Half an hour = 30 minutes
7. Eating dinner – 35 minutes
8. Tying shoelaces – 20 seconds

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Step 1: Convert all times to the same unit (minutes)

- Tying shoelaces: 20 seconds = 20/60 ≈ 0.33 minutes
- Brushing teeth: 2 minutes
- Reading a story: 10 minutes
- Watching a TV program: 30 minutes
- Eating dinner: 35 minutes
- A day at school: 6 hours = 6 × 60 = 360 minutes
- Having a good night's sleep: 11 hours = 11 × 60 = 660 minutes
- On vacation with family: 1 week = 7 days = 7 × 24 = 168 hours = 168 × 60 = 10,080 minutes

Now let’s list them in order from least to greatest:

1. Tying shoelaces – 0.33 minutes
2. Brushing teeth – 2 minutes
3. Reading a story – 10 minutes
4. Watching a TV program – 30 minutes
5. Eating dinner – 35 minutes
6. A day at school – 360 minutes
7. Having a good night's sleep – 660 minutes
8. On vacation with family – 10,080 minutes

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✔ Answer for Section A:

1. Tying shoelaces
2. Brushing teeth
3. Reading a story
4. Watching a TV program
5. Eating dinner
6. A day at school
7. Having a good night's sleep
8. On vacation with family

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Section B: Check the activity that takes the longest time in each pair

We go through each pair and choose the one that takes longer. If they’re about the same, leave both unchecked.

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1. Watching a movie vs Listening to a song
- Movie: ~90–120 minutes
- Song: ~3–5 minutes
✔ Watching a movie is longer → Already checked ✔️

2. Getting dressed for school vs A day at school
- Getting dressed: ~10–15 minutes
- A day at school: 6 hours
✔ A day at school is longer → Check A day at school

3. Going to the supermarket vs Going on vacation
- Supermarket: ~30–60 minutes
- Vacation: days/weeks
✔ Going on vacation is longer → Check Going on vacation

4. Reading a story vs Reading a text message
- Story: ~10 minutes
- Text message: ~1–2 seconds
✔ Reading a story is longer → Check Reading a story

5. Waving hello vs Saying hello
- Both take about the same time (~1 second)
→ Do not check either

6. Running around the school track once vs Brushing your teeth
- Running a lap: ~1–2 minutes
- Brushing teeth: ~2 minutes
→ About the same → Do not check either

7. Telling a joke vs Smiling at someone
- Telling a joke: ~10–30 seconds
- Smiling: ~1 second
✔ Telling a joke is longer → Check Telling a joke

8. One minute vs One hour
- One hour = 60 minutes > 1 minute
✔ One hour is longer → Check One hour

9. 3 days vs 1 week
- 3 days = 3 days
- 1 week = 7 days
✔ 1 week is longer → Check 1 week

10. October vs February
- October: 31 days
- February: 28 or 29 days
✔ October is longer → Check October

11. 30 seconds vs 1 minute
- 1 minute = 60 seconds > 30 seconds
✔ 1 minute is longer → Check 1 minute

12. 24 hours vs 1 day
- 24 hours = 1 day → They are the same
→ Do not check either

13. One hour vs 1 second
- One hour = 3600 seconds > 1 second
✔ One hour is longer → Check One hour

14. Half an hour vs 30 minutes
- Half an hour = 30 minutes → Same
→ Do not check either

15. 50 minutes vs One hour
- One hour = 60 minutes > 50 minutes
✔ One hour is longer → Check One hour

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✔ Final Answers for Section B:

| Pair | Longer Activity |
|------|------------------|
| Watching a movie | ✔ Checked |
| Getting dressed vs A day at school | ✔ A day at school |
| Going to supermarket vs Going on vacation | ✔ Going on vacation |
| Reading a story vs Reading a text message | ✔ Reading a story |
| Waving hello vs Saying hello | ✘ Neither |
| Running around track vs Brushing teeth | ✘ Neither |
| Telling a joke vs Smiling | ✔ Telling a joke |
| One minute vs One hour | ✔ One hour |
| 3 days vs 1 week | ✔ 1 week |
| October vs February | ✔ October |
| 30 seconds vs 1 minute | ✔ 1 minute |
| 24 hours vs 1 day | ✘ Neither |
| One hour vs 1 second | ✔ One hour |
| Half an hour vs 30 minutes | ✘ Neither |
| 50 minutes vs One hour | ✔ One hour |

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✔ Final Summary:

Section A (Ordered from least to greatest):
1. Tying shoelaces
2. Brushing teeth
3. Reading a story
4. Watching a TV program
5. Eating dinner
6. A day at school
7. Having a good night's sleep
8. On vacation with family

Section B (Check the longer one):
- A day at school
- Going on vacation
- Reading a story
- Telling a joke
- One hour
- 1 week
- October
- 1 minute
- One hour
- One hour

(Leave unchecked: Waving/Saying hello, Running/Brushing, 24 hrs/1 day, Half hr/30 min)

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