Name Date
Topsoil worksheet
Grades 6–7 · CCSS 6.G.A.2, 6.RP.A.3.d
Calcapedia Solve each problem and show your work. Round answers to 2 decimal places where needed.
- 1.
Problem 1. - Units: Metric (meters, cm)
- Area to cover: Length × width
- Length: 8 m
- Width: 3 m
- Depth of topsoil: 15 cm
- Bag size: 25 L
- Extra for settling and grading: 0%
- Soil bulk density (for weight): 1 g/cm³
Find: Topsoil to order
Answer
- 2.
Problem 2. - Units: US (feet, inches)
- Area to cover: Length × width
- Length: 18 ft
- Width: 11 ft
- Depth of topsoil: 3 in
- Bag size: 1.5 ft³
- Extra for settling and grading: 10%
- Soil bulk density (for weight): 1.4 g/cm³
Find: Topsoil to order
Answer
- 3.
Problem 3. - Units: Metric (meters, cm)
- Area to cover: Total area
- Area: 16 m²
- Depth of topsoil: 15 cm
- Bag size: 20 L
- Extra for settling and grading: 0%
- Soil bulk density (for weight): 1.3 g/cm³
Find: Topsoil to order
Answer
- 4.
Problem 4. - Units: US (feet, inches)
- Area to cover: Total area
- Area: 250 ft²
- Depth of topsoil: 4 in
- Bag size: 1 ft³
- Extra for settling and grading: 15%
- Soil bulk density (for weight): 1.8 g/cm³
Find: Topsoil to order
Answer
- 5.
Problem 5. - Units: Metric (meters, cm)
- Area to cover: Total area
- Area: 15 m²
- Depth of topsoil: 30 cm
- Bag size: 40 L
- Extra for settling and grading: 20%
- Soil bulk density (for weight): 1.4 g/cm³
Find: Topsoil to order
Answer
- 6.
Problem 6. - Units: US (feet, inches)
- Area to cover: Total area
- Area: 145 ft²
- Depth of topsoil: 3 in
- Bag size: 1.5 ft³
- Extra for settling and grading: 10%
- Soil bulk density (for weight): 1.3 g/cm³
Find: Topsoil to order
Answer
- 7.
Problem 7. - Units: US (feet, inches)
- Area to cover: Length × width
- Length: 20 ft
- Width: 10 ft
- Depth of topsoil: 2 in
- Bag size: 0.75 ft³
- Extra for settling and grading: 5%
- Soil bulk density (for weight): 1.3 g/cm³
Find: Topsoil to order
Answer
- 8.
Problem 8. - Units: Metric (meters, cm)
- Area to cover: Length × width
- Length: 7 m
- Width: 3 m
- Depth of topsoil: 30 cm
- Bag size: 25 L
- Extra for settling and grading: 15%
- Soil bulk density (for weight): 1.2 g/cm³
Find: Topsoil to order
Answer
- 9.
Problem 9. - Units: Metric (meters, cm)
- Area to cover: Total area
- Area: 12 m²
- Depth of topsoil: 15 cm
- Bag size: 25 L
- Extra for settling and grading: 20%
- Soil bulk density (for weight): 1.6 g/cm³
Find: Topsoil to order
Answer
- 10.
Problem 10. - Units: Metric (meters, cm)
- Area to cover: Length × width
- Length: 5 m
- Width: 4 m
- Depth of topsoil: 5 cm
- Bag size: 20 L
- Extra for settling and grading: 15%
- Soil bulk density (for weight): 1 g/cm³
Find: Topsoil to order
Answer
Answer key: Topsoil worksheet
Calcapedia 1. Topsoil to order: 3.6 m³
Multiply length by width to get the area
Multiply the area by the depth to get the volume, changing cm to meters first (÷ 100)
Add 0% extra, because loose soil settles after it is spread
Divide the liters by the bag size. Round up, since you can't buy part of a bag
Weight: multiply the volume in m³ by the bulk density, then by 1,000 to turn tonnes into kilograms
2. Topsoil to order: 2.02 yd³
Multiply length by width to get the area
Multiply the area by the depth to get the volume, changing inches to feet first (÷ 12)
Add 10% extra, because loose soil settles after it is spread
Divide by 27 to get cubic yards, since a cubic yard is 3 ft × 3 ft × 3 ft
Divide the cubic feet by the bag size. Round up, since you can't buy part of a bag
Weight: multiply the volume in m³ by the bulk density, then by 1,000 to turn tonnes into kilograms
3. Topsoil to order: 2.4 m³
Multiply the area by the depth to get the volume, changing cm to meters first (÷ 100)
Add 0% extra, because loose soil settles after it is spread
Divide the liters by the bag size. Round up, since you can't buy part of a bag
Weight: multiply the volume in m³ by the bulk density, then by 1,000 to turn tonnes into kilograms
4. Topsoil to order: 3.55 yd³
Multiply the area by the depth to get the volume, changing inches to feet first (÷ 12)
Add 15% extra, because loose soil settles after it is spread
Divide by 27 to get cubic yards, since a cubic yard is 3 ft × 3 ft × 3 ft
Divide the cubic feet by the bag size. Round up, since you can't buy part of a bag
Weight: multiply the volume in m³ by the bulk density, then by 1,000 to turn tonnes into kilograms
5. Topsoil to order: 5.4 m³
Multiply the area by the depth to get the volume, changing cm to meters first (÷ 100)
Add 20% extra, because loose soil settles after it is spread
Divide the liters by the bag size. Round up, since you can't buy part of a bag
Weight: multiply the volume in m³ by the bulk density, then by 1,000 to turn tonnes into kilograms
6. Topsoil to order: 1.48 yd³
Multiply the area by the depth to get the volume, changing inches to feet first (÷ 12)
Add 10% extra, because loose soil settles after it is spread
Divide by 27 to get cubic yards, since a cubic yard is 3 ft × 3 ft × 3 ft
Divide the cubic feet by the bag size. Round up, since you can't buy part of a bag
Weight: multiply the volume in m³ by the bulk density, then by 1,000 to turn tonnes into kilograms
7. Topsoil to order: 1.3 yd³
Multiply length by width to get the area
Multiply the area by the depth to get the volume, changing inches to feet first (÷ 12)
Add 5% extra, because loose soil settles after it is spread
Divide by 27 to get cubic yards, since a cubic yard is 3 ft × 3 ft × 3 ft
Divide the cubic feet by the bag size. Round up, since you can't buy part of a bag
Weight: multiply the volume in m³ by the bulk density, then by 1,000 to turn tonnes into kilograms
8. Topsoil to order: 7.24 m³
Multiply length by width to get the area
Multiply the area by the depth to get the volume, changing cm to meters first (÷ 100)
Add 15% extra, because loose soil settles after it is spread
Divide the liters by the bag size. Round up, since you can't buy part of a bag
Weight: multiply the volume in m³ by the bulk density, then by 1,000 to turn tonnes into kilograms
9. Topsoil to order: 2.16 m³
Multiply the area by the depth to get the volume, changing cm to meters first (÷ 100)
Add 20% extra, because loose soil settles after it is spread
Divide the liters by the bag size. Round up, since you can't buy part of a bag
Weight: multiply the volume in m³ by the bulk density, then by 1,000 to turn tonnes into kilograms
10. Topsoil to order: 1.15 m³
Multiply length by width to get the area
Multiply the area by the depth to get the volume, changing cm to meters first (÷ 100)
Add 15% extra, because loose soil settles after it is spread
Divide the liters by the bag size. Round up, since you can't buy part of a bag
Weight: multiply the volume in m³ by the bulk density, then by 1,000 to turn tonnes into kilograms