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 20 km and a drainage area of 5 km². Calculate its drainage density in km/km².
20 km · 5 km² · River basin drainage density
2. A river basin has a total stream length of 376 km and a drainage area of 47 km². Calculate its drainage density in km/km².
376 km · 47 km² · River basin drainage density
3. A river basin has a total stream length of 216 km and a drainage area of 36 km². Calculate its drainage density in km/km².
216 km · 36 km² · River basin drainage density
4. A river basin has a total stream length of 147 km and a drainage area of 49 km². Calculate its drainage density in km/km².
147 km · 49 km² · River basin drainage density
5. A river basin has a total stream length of 112 km and a drainage area of 14 km². Calculate its drainage density in km/km².
112 km · 14 km² · River basin drainage density
6. A river basin has a total stream length of 162 km and a drainage area of 27 km². Calculate its drainage density in km/km².
162 km · 27 km² · River basin drainage density
7. A river basin has a total stream length of 125 km and a drainage area of 25 km². Calculate its drainage density in km/km².
125 km · 25 km² · River basin drainage density
8. A river basin has a total stream length of 215 km and a drainage area of 43 km². Calculate its drainage density in km/km².
215 km · 43 km² · River basin drainage density
9. A river basin has a total stream length of 30 km and a drainage area of 10 km². Calculate its drainage density in km/km².
30 km · 10 km² · River basin drainage density
10. A river basin has a total stream length of 21 km and a drainage area of 7 km². Calculate its drainage density in km/km².
21 km · 7 km² · River basin drainage density
11. A river basin has a total stream length of 152 km and a drainage area of 38 km². Calculate its drainage density in km/km².
152 km · 38 km² · River basin drainage density
12. A river basin has a total stream length of 100 km and a drainage area of 50 km². Calculate its drainage density in km/km².
100 km · 50 km² · River basin drainage density

12 questions · Seed 44 · 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 20 km and a drainage area of 5 km². Calculate its drainage density in km/km².
4 km/km²
Drainage density = total stream length ÷ basin area = 20 ÷ 5 = 4 km/km².
2. A river basin has a total stream length of 376 km and a drainage area of 47 km². Calculate its drainage density in km/km².
8 km/km²
Drainage density = total stream length ÷ basin area = 376 ÷ 47 = 8 km/km².
3. A river basin has a total stream length of 216 km and a drainage area of 36 km². Calculate its drainage density in km/km².
6 km/km²
Drainage density = total stream length ÷ basin area = 216 ÷ 36 = 6 km/km².
4. A river basin has a total stream length of 147 km and a drainage area of 49 km². Calculate its drainage density in km/km².
3 km/km²
Drainage density = total stream length ÷ basin area = 147 ÷ 49 = 3 km/km².
5. A river basin has a total stream length of 112 km and a drainage area of 14 km². Calculate its drainage density in km/km².
8 km/km²
Drainage density = total stream length ÷ basin area = 112 ÷ 14 = 8 km/km².
6. A river basin has a total stream length of 162 km and a drainage area of 27 km². Calculate its drainage density in km/km².
6 km/km²
Drainage density = total stream length ÷ basin area = 162 ÷ 27 = 6 km/km².
7. A river basin has a total stream length of 125 km and a drainage area of 25 km². Calculate its drainage density in km/km².
5 km/km²
Drainage density = total stream length ÷ basin area = 125 ÷ 25 = 5 km/km².
8. A river basin has a total stream length of 215 km and a drainage area of 43 km². Calculate its drainage density in km/km².
5 km/km²
Drainage density = total stream length ÷ basin area = 215 ÷ 43 = 5 km/km².
9. A river basin has a total stream length of 30 km and a drainage area of 10 km². Calculate its drainage density in km/km².
3 km/km²
Drainage density = total stream length ÷ basin area = 30 ÷ 10 = 3 km/km².
10. A river basin has a total stream length of 21 km and a drainage area of 7 km². Calculate its drainage density in km/km².
3 km/km²
Drainage density = total stream length ÷ basin area = 21 ÷ 7 = 3 km/km².
11. A river basin has a total stream length of 152 km and a drainage area of 38 km². Calculate its drainage density in km/km².
4 km/km²
Drainage density = total stream length ÷ basin area = 152 ÷ 38 = 4 km/km².
12. A river basin has a total stream length of 100 km and a drainage area of 50 km². Calculate its drainage density in km/km².
2 km/km²
Drainage density = total stream length ÷ basin area = 100 ÷ 50 = 2 km/km².

12 questions · Seed 44 · 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 20 km and a drainage area of 5 km². Calculate its drainage density in km/km².
20 km · 5 km² · River basin drainage density
2. A river basin has a total stream length of 376 km and a drainage area of 47 km². Calculate its drainage density in km/km².
376 km · 47 km² · River basin drainage density
3. A river basin has a total stream length of 216 km and a drainage area of 36 km². Calculate its drainage density in km/km².
216 km · 36 km² · River basin drainage density
4. A river basin has a total stream length of 147 km and a drainage area of 49 km². Calculate its drainage density in km/km².
147 km · 49 km² · River basin drainage density
5. A river basin has a total stream length of 112 km and a drainage area of 14 km². Calculate its drainage density in km/km².
112 km · 14 km² · River basin drainage density
6. A river basin has a total stream length of 162 km and a drainage area of 27 km². Calculate its drainage density in km/km².
162 km · 27 km² · River basin drainage density
7. A river basin has a total stream length of 125 km and a drainage area of 25 km². Calculate its drainage density in km/km².
125 km · 25 km² · River basin drainage density
8. A river basin has a total stream length of 215 km and a drainage area of 43 km². Calculate its drainage density in km/km².
215 km · 43 km² · River basin drainage density
9. A river basin has a total stream length of 30 km and a drainage area of 10 km². Calculate its drainage density in km/km².
30 km · 10 km² · River basin drainage density
10. A river basin has a total stream length of 21 km and a drainage area of 7 km². Calculate its drainage density in km/km².
21 km · 7 km² · River basin drainage density
11. A river basin has a total stream length of 152 km and a drainage area of 38 km². Calculate its drainage density in km/km².
152 km · 38 km² · River basin drainage density
12. A river basin has a total stream length of 100 km and a drainage area of 50 km². Calculate its drainage density in km/km².
100 km · 50 km² · River basin drainage density

12 questions · Seed 44 · 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 20 km and a drainage area of 5 km². Calculate its drainage density in km/km².
4 km/km²
Drainage density = total stream length ÷ basin area = 20 ÷ 5 = 4 km/km².
2. A river basin has a total stream length of 376 km and a drainage area of 47 km². Calculate its drainage density in km/km².
8 km/km²
Drainage density = total stream length ÷ basin area = 376 ÷ 47 = 8 km/km².
3. A river basin has a total stream length of 216 km and a drainage area of 36 km². Calculate its drainage density in km/km².
6 km/km²
Drainage density = total stream length ÷ basin area = 216 ÷ 36 = 6 km/km².
4. A river basin has a total stream length of 147 km and a drainage area of 49 km². Calculate its drainage density in km/km².
3 km/km²
Drainage density = total stream length ÷ basin area = 147 ÷ 49 = 3 km/km².
5. A river basin has a total stream length of 112 km and a drainage area of 14 km². Calculate its drainage density in km/km².
8 km/km²
Drainage density = total stream length ÷ basin area = 112 ÷ 14 = 8 km/km².
6. A river basin has a total stream length of 162 km and a drainage area of 27 km². Calculate its drainage density in km/km².
6 km/km²
Drainage density = total stream length ÷ basin area = 162 ÷ 27 = 6 km/km².
7. A river basin has a total stream length of 125 km and a drainage area of 25 km². Calculate its drainage density in km/km².
5 km/km²
Drainage density = total stream length ÷ basin area = 125 ÷ 25 = 5 km/km².
8. A river basin has a total stream length of 215 km and a drainage area of 43 km². Calculate its drainage density in km/km².
5 km/km²
Drainage density = total stream length ÷ basin area = 215 ÷ 43 = 5 km/km².
9. A river basin has a total stream length of 30 km and a drainage area of 10 km². Calculate its drainage density in km/km².
3 km/km²
Drainage density = total stream length ÷ basin area = 30 ÷ 10 = 3 km/km².
10. A river basin has a total stream length of 21 km and a drainage area of 7 km². Calculate its drainage density in km/km².
3 km/km²
Drainage density = total stream length ÷ basin area = 21 ÷ 7 = 3 km/km².
11. A river basin has a total stream length of 152 km and a drainage area of 38 km². Calculate its drainage density in km/km².
4 km/km²
Drainage density = total stream length ÷ basin area = 152 ÷ 38 = 4 km/km².
12. A river basin has a total stream length of 100 km and a drainage area of 50 km². Calculate its drainage density in km/km².
2 km/km²
Drainage density = total stream length ÷ basin area = 100 ÷ 50 = 2 km/km².

12 questions · Seed 44 · Age guidance, not curriculum certification