Our worldAges 13-15

River basin drainage density

Divide total stream length (km) by catchment area (km²) to calculate river basin drainage density. Review suitability for your learners before teaching.

New variation Try interactive challenge Browse templates

Age band:Ages 13-15 Ages 16-18

Choose “Save as PDF” to keep a copy. Use your browser’s paper setting for A4 or Letter.

Worksheet StudioPractice pack · Ages 13-15

River basin drainage density

Take your time. Show your thinking.

1. A river basin has a total stream length of 92 km and a drainage area of 46 km². Calculate its drainage density in km/km².
92 km · 46 km² · River basin drainage density
2. A river basin has a total stream length of 128 km and a drainage area of 16 km². Calculate its drainage density in km/km².
128 km · 16 km² · River basin drainage density
3. A river basin has a total stream length of 70 km and a drainage area of 35 km². Calculate its drainage density in km/km².
70 km · 35 km² · River basin drainage density
4. A river basin has a total stream length of 114 km and a drainage area of 19 km². Calculate its drainage density in km/km².
114 km · 19 km² · River basin drainage density
5. A river basin has a total stream length of 72 km and a drainage area of 24 km². Calculate its drainage density in km/km².
72 km · 24 km² · River basin drainage density
6. A river basin has a total stream length of 45 km and a drainage area of 15 km². Calculate its drainage density in km/km².
45 km · 15 km² · River basin drainage density
7. A river basin has a total stream length of 144 km and a drainage area of 24 km². Calculate its drainage density in km/km².
144 km · 24 km² · River basin drainage density
8. A river basin has a total stream length of 88 km and a drainage area of 22 km². Calculate its drainage density in km/km².
88 km · 22 km² · River basin drainage density
9. A river basin has a total stream length of 18 km and a drainage area of 9 km². Calculate its drainage density in km/km².
18 km · 9 km² · River basin drainage density
10. A river basin has a total stream length of 98 km and a drainage area of 14 km². Calculate its drainage density in km/km².
98 km · 14 km² · River basin drainage density
11. A river basin has a total stream length of 312 km and a drainage area of 39 km². Calculate its drainage density in km/km².
312 km · 39 km² · River basin drainage density
12. A river basin has a total stream length of 96 km and a drainage area of 12 km². Calculate its drainage density in km/km².
96 km · 12 km² · River basin drainage density

12 questions · Seed 45 · Age guidance, not curriculum certification

View the answer key

Worksheet StudioAnswer key · Ages 13-15

River basin drainage density

Answers and reasoning. Review before teaching.

1. A river basin has a total stream length of 92 km and a drainage area of 46 km². Calculate its drainage density in km/km².
2 km/km²
Drainage density = total stream length ÷ basin area = 92 ÷ 46 = 2 km/km².
2. A river basin has a total stream length of 128 km and a drainage area of 16 km². Calculate its drainage density in km/km².
8 km/km²
Drainage density = total stream length ÷ basin area = 128 ÷ 16 = 8 km/km².
3. A river basin has a total stream length of 70 km and a drainage area of 35 km². Calculate its drainage density in km/km².
2 km/km²
Drainage density = total stream length ÷ basin area = 70 ÷ 35 = 2 km/km².
4. A river basin has a total stream length of 114 km and a drainage area of 19 km². Calculate its drainage density in km/km².
6 km/km²
Drainage density = total stream length ÷ basin area = 114 ÷ 19 = 6 km/km².
5. A river basin has a total stream length of 72 km and a drainage area of 24 km². Calculate its drainage density in km/km².
3 km/km²
Drainage density = total stream length ÷ basin area = 72 ÷ 24 = 3 km/km².
6. A river basin has a total stream length of 45 km and a drainage area of 15 km². Calculate its drainage density in km/km².
3 km/km²
Drainage density = total stream length ÷ basin area = 45 ÷ 15 = 3 km/km².
7. A river basin has a total stream length of 144 km and a drainage area of 24 km². Calculate its drainage density in km/km².
6 km/km²
Drainage density = total stream length ÷ basin area = 144 ÷ 24 = 6 km/km².
8. A river basin has a total stream length of 88 km and a drainage area of 22 km². Calculate its drainage density in km/km².
4 km/km²
Drainage density = total stream length ÷ basin area = 88 ÷ 22 = 4 km/km².
9. A river basin has a total stream length of 18 km and a drainage area of 9 km². Calculate its drainage density in km/km².
2 km/km²
Drainage density = total stream length ÷ basin area = 18 ÷ 9 = 2 km/km².
10. A river basin has a total stream length of 98 km and a drainage area of 14 km². Calculate its drainage density in km/km².
7 km/km²
Drainage density = total stream length ÷ basin area = 98 ÷ 14 = 7 km/km².
11. A river basin has a total stream length of 312 km and a drainage area of 39 km². Calculate its drainage density in km/km².
8 km/km²
Drainage density = total stream length ÷ basin area = 312 ÷ 39 = 8 km/km².
12. A river basin has a total stream length of 96 km and a drainage area of 12 km². Calculate its drainage density in km/km².
8 km/km²
Drainage density = total stream length ÷ basin area = 96 ÷ 12 = 8 km/km².

12 questions · Seed 45 · Age guidance, not curriculum certification

Worksheet StudioPractice pack · Ages 13-15

River basin drainage density

Take your time. Show your thinking.

1. A river basin has a total stream length of 92 km and a drainage area of 46 km². Calculate its drainage density in km/km².
92 km · 46 km² · River basin drainage density
2. A river basin has a total stream length of 128 km and a drainage area of 16 km². Calculate its drainage density in km/km².
128 km · 16 km² · River basin drainage density
3. A river basin has a total stream length of 70 km and a drainage area of 35 km². Calculate its drainage density in km/km².
70 km · 35 km² · River basin drainage density
4. A river basin has a total stream length of 114 km and a drainage area of 19 km². Calculate its drainage density in km/km².
114 km · 19 km² · River basin drainage density
5. A river basin has a total stream length of 72 km and a drainage area of 24 km². Calculate its drainage density in km/km².
72 km · 24 km² · River basin drainage density
6. A river basin has a total stream length of 45 km and a drainage area of 15 km². Calculate its drainage density in km/km².
45 km · 15 km² · River basin drainage density
7. A river basin has a total stream length of 144 km and a drainage area of 24 km². Calculate its drainage density in km/km².
144 km · 24 km² · River basin drainage density
8. A river basin has a total stream length of 88 km and a drainage area of 22 km². Calculate its drainage density in km/km².
88 km · 22 km² · River basin drainage density
9. A river basin has a total stream length of 18 km and a drainage area of 9 km². Calculate its drainage density in km/km².
18 km · 9 km² · River basin drainage density
10. A river basin has a total stream length of 98 km and a drainage area of 14 km². Calculate its drainage density in km/km².
98 km · 14 km² · River basin drainage density
11. A river basin has a total stream length of 312 km and a drainage area of 39 km². Calculate its drainage density in km/km².
312 km · 39 km² · River basin drainage density
12. A river basin has a total stream length of 96 km and a drainage area of 12 km². Calculate its drainage density in km/km².
96 km · 12 km² · River basin drainage density

12 questions · Seed 45 · Age guidance, not curriculum certification

Worksheet StudioAnswer key · Ages 13-15

River basin drainage density

Answers and reasoning. Review before teaching.

1. A river basin has a total stream length of 92 km and a drainage area of 46 km². Calculate its drainage density in km/km².
2 km/km²
Drainage density = total stream length ÷ basin area = 92 ÷ 46 = 2 km/km².
2. A river basin has a total stream length of 128 km and a drainage area of 16 km². Calculate its drainage density in km/km².
8 km/km²
Drainage density = total stream length ÷ basin area = 128 ÷ 16 = 8 km/km².
3. A river basin has a total stream length of 70 km and a drainage area of 35 km². Calculate its drainage density in km/km².
2 km/km²
Drainage density = total stream length ÷ basin area = 70 ÷ 35 = 2 km/km².
4. A river basin has a total stream length of 114 km and a drainage area of 19 km². Calculate its drainage density in km/km².
6 km/km²
Drainage density = total stream length ÷ basin area = 114 ÷ 19 = 6 km/km².
5. A river basin has a total stream length of 72 km and a drainage area of 24 km². Calculate its drainage density in km/km².
3 km/km²
Drainage density = total stream length ÷ basin area = 72 ÷ 24 = 3 km/km².
6. A river basin has a total stream length of 45 km and a drainage area of 15 km². Calculate its drainage density in km/km².
3 km/km²
Drainage density = total stream length ÷ basin area = 45 ÷ 15 = 3 km/km².
7. A river basin has a total stream length of 144 km and a drainage area of 24 km². Calculate its drainage density in km/km².
6 km/km²
Drainage density = total stream length ÷ basin area = 144 ÷ 24 = 6 km/km².
8. A river basin has a total stream length of 88 km and a drainage area of 22 km². Calculate its drainage density in km/km².
4 km/km²
Drainage density = total stream length ÷ basin area = 88 ÷ 22 = 4 km/km².
9. A river basin has a total stream length of 18 km and a drainage area of 9 km². Calculate its drainage density in km/km².
2 km/km²
Drainage density = total stream length ÷ basin area = 18 ÷ 9 = 2 km/km².
10. A river basin has a total stream length of 98 km and a drainage area of 14 km². Calculate its drainage density in km/km².
7 km/km²
Drainage density = total stream length ÷ basin area = 98 ÷ 14 = 7 km/km².
11. A river basin has a total stream length of 312 km and a drainage area of 39 km². Calculate its drainage density in km/km².
8 km/km²
Drainage density = total stream length ÷ basin area = 312 ÷ 39 = 8 km/km².
12. A river basin has a total stream length of 96 km and a drainage area of 12 km². Calculate its drainage density in km/km².
8 km/km²
Drainage density = total stream length ÷ basin area = 96 ÷ 12 = 8 km/km².

12 questions · Seed 45 · Age guidance, not curriculum certification