The Water Planet Worksheet - Free Printable
Educational worksheet: The Water Planet Worksheet. Download and print for classroom or home learning activities.
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Step-by-step solution for: The Water Planet Worksheet
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Step-by-step solution for: The Water Planet Worksheet
Let's solve the problem step by step based on the worksheet titled "The Water Planet".
---
This worksheet helps students understand the percentage distribution of Earth’s surface covered by water (oceans) and land (continents), using a 20 cm strip to represent these percentages visually.
We are given:
- Total length = 20 cm
- We need to calculate how many centimeters correspond to each ocean and continent based on their percentage of Earth's surface.
- Then, we will color the left half of the strip for oceans and land, and the right half for individual oceans and continents.
---
## 🔢 Part 1: DO THE MATH
We’ll calculate each value using the formula:
> cm = (Percentage ÷ 100) × 20
Let’s go through each one:
---
= (70.9 / 100) × 20
= 0.709 × 20
= 14.18 cm
✔ Answer: 14.18 cm
---
= (29.1 / 100) × 20
= 0.291 × 20
= 5.82 cm
✔ Answer: 5.82 cm
---
= 0.305 × 20
= 6.1 cm
✔ Answer: 6.1 cm
---
= 0.161 × 20
= 3.22 cm
✔ Answer: 3.22 cm
---
= 0.134 × 20
= 2.68 cm
✔ Answer: 2.68 cm
---
= 0.067 × 20
= 1.34 cm
✔ Answer: 1.34 cm
---
= 0.039 × 20
= 0.78 cm
✔ Answer: 0.78 cm
---
= 0.086 × 20
= 1.72 cm
✔ Answer: 1.72 cm
---
= 0.06 × 20
= 1.2 cm
✔ Answer: 1.2 cm
---
= 0.048 × 20
= 0.96 cm
✔ Answer: 0.96 cm
---
= 0.034 × 20
= 0.68 cm
✔ Answer: 0.68 cm
---
= 0.026 × 20
= 0.52 cm
✔ Answer: 0.52 cm
---
= 0.0199 × 20
= 0.398 cm
✔ Answer: 0.398 cm
---
= 0.017 × 20
= 0.34 cm
✔ Answer: 0.34 cm
---
## ✔ Summary Table
| Item | Calculation | Result (cm) |
|------|-------------|------------|
| a. Ocean | 70.9% × 20 | 14.18 cm |
| b. Land | 29.1% × 20 | 5.82 cm |
| c. Pacific Ocean | 30.5% × 20 | 6.1 cm |
| d. Atlantic Ocean | 16.1% × 20 | 3.22 cm |
| e. Indian Ocean | 13.4% × 20 | 2.68 cm |
| f. Arctic Ocean | 6.7% × 20 | 1.34 cm |
| g. Southern Ocean | 3.9% × 20 | 0.78 cm |
| h. Asia | 8.6% × 20 | 1.72 cm |
| i. Africa | 6% × 20 | 1.2 cm |
| j. North America | 4.8% × 20 | 0.96 cm |
| k. South America | 3.4% × 20 | 0.68 cm |
| l. Antarctica | 2.6% × 20 | 0.52 cm |
| m. Europe | 1.99% × 20 | 0.398 cm |
| n. Australia | 1.7% × 20 | 0.34 cm |
---
## 🎨 Part 2: COLOR IN THE OCEAN AND LAND
- Left half of the 20 cm strip → Color only Ocean (14.18 cm) and Land (5.82 cm). This represents total water vs. land.
- So, color 14.18 cm for ocean (blue)
- Color 5.82 cm for land (green or brown)
> Note: Since this is a visual task, you would draw a 20 cm line and mark:
> - First 14.18 cm → Blue (Ocean)
> - Next 5.82 cm → Green/Brown (Land)
---
## 🌍 Part 3: COLOR IN THE OCEANS AND CONTINENTS
Now, use the right half of the 20 cm strip (another 20 cm) to show each ocean and continent proportionally.
You will divide the second 20 cm strip into segments based on the values calculated above.
For example:
- Pacific Ocean: 6.1 cm → color blue
- Atlantic Ocean: 3.22 cm → color blue
- And so on...
Also:
- Asia: 1.72 cm → color green
- Africa: 1.2 cm → color green
- etc.
💡 Tip: Use different shades or labels to distinguish between oceans and continents.
---
## 📝 Final Notes
Total ocean area from all oceans:
6.1 + 3.22 + 2.68 + 1.34 + 0.78 = 14.12 cm ≈ 14.18 cm (small rounding difference due to approximations)
Total land area:
1.72 + 1.2 + 0.96 + 0.68 + 0.52 + 0.398 + 0.34 = 5.818 cm ≈ 5.82 cm ✔
So the calculations are consistent!
---
## ✔ Conclusion
You’ve now:
1. Calculated the correct lengths in centimeters for each ocean and continent.
2. Understood that 70.9% of Earth is ocean, and 29.1% is land.
3. Learned how to represent percentages visually using a 20 cm strip.
Use colored pencils to complete the coloring tasks as instructed.
Let me know if you'd like a printable version or a visual sketch guide!
---
Task Overview:
This worksheet helps students understand the percentage distribution of Earth’s surface covered by water (oceans) and land (continents), using a 20 cm strip to represent these percentages visually.
We are given:
- Total length = 20 cm
- We need to calculate how many centimeters correspond to each ocean and continent based on their percentage of Earth's surface.
- Then, we will color the left half of the strip for oceans and land, and the right half for individual oceans and continents.
---
## 🔢 Part 1: DO THE MATH
We’ll calculate each value using the formula:
> cm = (Percentage ÷ 100) × 20
Let’s go through each one:
---
a. Ocean = 70.9% × 20 cm
= (70.9 / 100) × 20
= 0.709 × 20
= 14.18 cm
✔ Answer: 14.18 cm
---
b. Land = 29.1% × 20 cm
= (29.1 / 100) × 20
= 0.291 × 20
= 5.82 cm
✔ Answer: 5.82 cm
---
c. Pacific Ocean = 30.5% × 20 cm
= 0.305 × 20
= 6.1 cm
✔ Answer: 6.1 cm
---
d. Atlantic Ocean = 16.1% × 20 cm
= 0.161 × 20
= 3.22 cm
✔ Answer: 3.22 cm
---
e. Indian Ocean = 13.4% × 20 cm
= 0.134 × 20
= 2.68 cm
✔ Answer: 2.68 cm
---
f. Arctic Ocean = 6.7% × 20 cm
= 0.067 × 20
= 1.34 cm
✔ Answer: 1.34 cm
---
g. Southern Ocean = 3.9% × 20 cm
= 0.039 × 20
= 0.78 cm
✔ Answer: 0.78 cm
---
h. Asia = 8.6% × 20 cm
= 0.086 × 20
= 1.72 cm
✔ Answer: 1.72 cm
---
i. Africa = 6% × 20 cm
= 0.06 × 20
= 1.2 cm
✔ Answer: 1.2 cm
---
j. North America = 4.8% × 20 cm
= 0.048 × 20
= 0.96 cm
✔ Answer: 0.96 cm
---
k. South America = 3.4% × 20 cm
= 0.034 × 20
= 0.68 cm
✔ Answer: 0.68 cm
---
l. Antarctica = 2.6% × 20 cm
= 0.026 × 20
= 0.52 cm
✔ Answer: 0.52 cm
---
m. Europe = 1.99% × 20 cm
= 0.0199 × 20
= 0.398 cm
✔ Answer: 0.398 cm
---
n. Australia = 1.7% × 20 cm
= 0.017 × 20
= 0.34 cm
✔ Answer: 0.34 cm
---
## ✔ Summary Table
| Item | Calculation | Result (cm) |
|------|-------------|------------|
| a. Ocean | 70.9% × 20 | 14.18 cm |
| b. Land | 29.1% × 20 | 5.82 cm |
| c. Pacific Ocean | 30.5% × 20 | 6.1 cm |
| d. Atlantic Ocean | 16.1% × 20 | 3.22 cm |
| e. Indian Ocean | 13.4% × 20 | 2.68 cm |
| f. Arctic Ocean | 6.7% × 20 | 1.34 cm |
| g. Southern Ocean | 3.9% × 20 | 0.78 cm |
| h. Asia | 8.6% × 20 | 1.72 cm |
| i. Africa | 6% × 20 | 1.2 cm |
| j. North America | 4.8% × 20 | 0.96 cm |
| k. South America | 3.4% × 20 | 0.68 cm |
| l. Antarctica | 2.6% × 20 | 0.52 cm |
| m. Europe | 1.99% × 20 | 0.398 cm |
| n. Australia | 1.7% × 20 | 0.34 cm |
---
## 🎨 Part 2: COLOR IN THE OCEAN AND LAND
Instructions:
- Left half of the 20 cm strip → Color only Ocean (14.18 cm) and Land (5.82 cm). This represents total water vs. land.
- So, color 14.18 cm for ocean (blue)
- Color 5.82 cm for land (green or brown)
> Note: Since this is a visual task, you would draw a 20 cm line and mark:
> - First 14.18 cm → Blue (Ocean)
> - Next 5.82 cm → Green/Brown (Land)
---
## 🌍 Part 3: COLOR IN THE OCEANS AND CONTINENTS
Now, use the right half of the 20 cm strip (another 20 cm) to show each ocean and continent proportionally.
You will divide the second 20 cm strip into segments based on the values calculated above.
For example:
- Pacific Ocean: 6.1 cm → color blue
- Atlantic Ocean: 3.22 cm → color blue
- And so on...
Also:
- Asia: 1.72 cm → color green
- Africa: 1.2 cm → color green
- etc.
💡 Tip: Use different shades or labels to distinguish between oceans and continents.
---
## 📝 Final Notes
Check your math:
Total ocean area from all oceans:
6.1 + 3.22 + 2.68 + 1.34 + 0.78 = 14.12 cm ≈ 14.18 cm (small rounding difference due to approximations)
Total land area:
1.72 + 1.2 + 0.96 + 0.68 + 0.52 + 0.398 + 0.34 = 5.818 cm ≈ 5.82 cm ✔
So the calculations are consistent!
---
## ✔ Conclusion
You’ve now:
1. Calculated the correct lengths in centimeters for each ocean and continent.
2. Understood that 70.9% of Earth is ocean, and 29.1% is land.
3. Learned how to represent percentages visually using a 20 cm strip.
Use colored pencils to complete the coloring tasks as instructed.
Let me know if you'd like a printable version or a visual sketch guide!
Parent Tip: Review the logic above to help your child master the concept of water on earth worksheet.
