Our worldAges 16-18

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 16-18

River basin drainage density

Take your time. Show your thinking.

1. A river basin has a total stream length of 144 km and a drainage area of 48 km². Calculate its drainage density in km/km².
144 km · 48 km² · River basin drainage density
2. 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
3. A river basin has a total stream length of 272 km and a drainage area of 34 km². Calculate its drainage density in km/km².
272 km · 34 km² · River basin drainage density
4. A river basin has a total stream length of 96 km and a drainage area of 48 km². Calculate its drainage density in km/km².
96 km · 48 km² · River basin drainage density
5. A river basin has a total stream length of 186 km and a drainage area of 31 km². Calculate its drainage density in km/km².
186 km · 31 km² · River basin drainage density
6. A river basin has a total stream length of 235 km and a drainage area of 47 km². Calculate its drainage density in km/km².
235 km · 47 km² · River basin drainage density
7. A river basin has a total stream length of 111 km and a drainage area of 37 km². Calculate its drainage density in km/km².
111 km · 37 km² · River basin drainage density
8. A river basin has a total stream length of 102 km and a drainage area of 34 km². Calculate its drainage density in km/km².
102 km · 34 km² · River basin drainage density
9. A river basin has a total stream length of 276 km and a drainage area of 46 km². Calculate its drainage density in km/km².
276 km · 46 km² · River basin drainage density
10. A river basin has a total stream length of 200 km and a drainage area of 25 km². Calculate its drainage density in km/km².
200 km · 25 km² · River basin drainage density
11. A river basin has a total stream length of 196 km and a drainage area of 28 km². Calculate its drainage density in km/km².
196 km · 28 km² · River basin drainage density
12. A river basin has a total stream length of 288 km and a drainage area of 48 km². Calculate its drainage density in km/km².
288 km · 48 km² · River basin drainage density

12 questions · Seed 46 · Age guidance, not curriculum certification

View the answer key

Worksheet StudioAnswer key · Ages 16-18

River basin drainage density

Answers and reasoning. Review before teaching.

1. A river basin has a total stream length of 144 km and a drainage area of 48 km². Calculate its drainage density in km/km².
3 km/km²
Drainage density = total stream length ÷ basin area = 144 ÷ 48 = 3 km/km².
2. 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.
3. A river basin has a total stream length of 272 km and a drainage area of 34 km². Calculate its drainage density in km/km².
8 km/km²
Drainage density = total stream length ÷ basin area = 272 ÷ 34 = 8 km/km².
4. A river basin has a total stream length of 96 km and a drainage area of 48 km². Calculate its drainage density in km/km².
2 km/km²
Drainage density = total stream length ÷ basin area = 96 ÷ 48 = 2 km/km².
5. A river basin has a total stream length of 186 km and a drainage area of 31 km². Calculate its drainage density in km/km².
6 km/km²
Drainage density = total stream length ÷ basin area = 186 ÷ 31 = 6 km/km².
6. A river basin has a total stream length of 235 km and a drainage area of 47 km². Calculate its drainage density in km/km².
5 km/km²
Drainage density = total stream length ÷ basin area = 235 ÷ 47 = 5 km/km².
7. A river basin has a total stream length of 111 km and a drainage area of 37 km². Calculate its drainage density in km/km².
3 km/km²
Drainage density = total stream length ÷ basin area = 111 ÷ 37 = 3 km/km².
8. A river basin has a total stream length of 102 km and a drainage area of 34 km². Calculate its drainage density in km/km².
3 km/km²
Drainage density = total stream length ÷ basin area = 102 ÷ 34 = 3 km/km².
9. A river basin has a total stream length of 276 km and a drainage area of 46 km². Calculate its drainage density in km/km².
6 km/km²
Drainage density = total stream length ÷ basin area = 276 ÷ 46 = 6 km/km².
10. A river basin has a total stream length of 200 km and a drainage area of 25 km². Calculate its drainage density in km/km².
8 km/km²
Drainage density = total stream length ÷ basin area = 200 ÷ 25 = 8 km/km².
11. A river basin has a total stream length of 196 km and a drainage area of 28 km². Calculate its drainage density in km/km².
7 km/km²
Drainage density = total stream length ÷ basin area = 196 ÷ 28 = 7 km/km².
12. A river basin has a total stream length of 288 km and a drainage area of 48 km². Calculate its drainage density in km/km².
6 km/km²
Drainage density = total stream length ÷ basin area = 288 ÷ 48 = 6 km/km².

12 questions · Seed 46 · Age guidance, not curriculum certification

Worksheet StudioPractice pack · Ages 16-18

River basin drainage density

Take your time. Show your thinking.

1. A river basin has a total stream length of 144 km and a drainage area of 48 km². Calculate its drainage density in km/km².
144 km · 48 km² · River basin drainage density
2. 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
3. A river basin has a total stream length of 272 km and a drainage area of 34 km². Calculate its drainage density in km/km².
272 km · 34 km² · River basin drainage density
4. A river basin has a total stream length of 96 km and a drainage area of 48 km². Calculate its drainage density in km/km².
96 km · 48 km² · River basin drainage density
5. A river basin has a total stream length of 186 km and a drainage area of 31 km². Calculate its drainage density in km/km².
186 km · 31 km² · River basin drainage density
6. A river basin has a total stream length of 235 km and a drainage area of 47 km². Calculate its drainage density in km/km².
235 km · 47 km² · River basin drainage density
7. A river basin has a total stream length of 111 km and a drainage area of 37 km². Calculate its drainage density in km/km².
111 km · 37 km² · River basin drainage density
8. A river basin has a total stream length of 102 km and a drainage area of 34 km². Calculate its drainage density in km/km².
102 km · 34 km² · River basin drainage density
9. A river basin has a total stream length of 276 km and a drainage area of 46 km². Calculate its drainage density in km/km².
276 km · 46 km² · River basin drainage density
10. A river basin has a total stream length of 200 km and a drainage area of 25 km². Calculate its drainage density in km/km².
200 km · 25 km² · River basin drainage density
11. A river basin has a total stream length of 196 km and a drainage area of 28 km². Calculate its drainage density in km/km².
196 km · 28 km² · River basin drainage density
12. A river basin has a total stream length of 288 km and a drainage area of 48 km². Calculate its drainage density in km/km².
288 km · 48 km² · River basin drainage density

12 questions · Seed 46 · Age guidance, not curriculum certification

Worksheet StudioAnswer key · Ages 16-18

River basin drainage density

Answers and reasoning. Review before teaching.

1. A river basin has a total stream length of 144 km and a drainage area of 48 km². Calculate its drainage density in km/km².
3 km/km²
Drainage density = total stream length ÷ basin area = 144 ÷ 48 = 3 km/km².
2. 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.
3. A river basin has a total stream length of 272 km and a drainage area of 34 km². Calculate its drainage density in km/km².
8 km/km²
Drainage density = total stream length ÷ basin area = 272 ÷ 34 = 8 km/km².
4. A river basin has a total stream length of 96 km and a drainage area of 48 km². Calculate its drainage density in km/km².
2 km/km²
Drainage density = total stream length ÷ basin area = 96 ÷ 48 = 2 km/km².
5. A river basin has a total stream length of 186 km and a drainage area of 31 km². Calculate its drainage density in km/km².
6 km/km²
Drainage density = total stream length ÷ basin area = 186 ÷ 31 = 6 km/km².
6. A river basin has a total stream length of 235 km and a drainage area of 47 km². Calculate its drainage density in km/km².
5 km/km²
Drainage density = total stream length ÷ basin area = 235 ÷ 47 = 5 km/km².
7. A river basin has a total stream length of 111 km and a drainage area of 37 km². Calculate its drainage density in km/km².
3 km/km²
Drainage density = total stream length ÷ basin area = 111 ÷ 37 = 3 km/km².
8. A river basin has a total stream length of 102 km and a drainage area of 34 km². Calculate its drainage density in km/km².
3 km/km²
Drainage density = total stream length ÷ basin area = 102 ÷ 34 = 3 km/km².
9. A river basin has a total stream length of 276 km and a drainage area of 46 km². Calculate its drainage density in km/km².
6 km/km²
Drainage density = total stream length ÷ basin area = 276 ÷ 46 = 6 km/km².
10. A river basin has a total stream length of 200 km and a drainage area of 25 km². Calculate its drainage density in km/km².
8 km/km²
Drainage density = total stream length ÷ basin area = 200 ÷ 25 = 8 km/km².
11. A river basin has a total stream length of 196 km and a drainage area of 28 km². Calculate its drainage density in km/km².
7 km/km²
Drainage density = total stream length ÷ basin area = 196 ÷ 28 = 7 km/km².
12. A river basin has a total stream length of 288 km and a drainage area of 48 km². Calculate its drainage density in km/km².
6 km/km²
Drainage density = total stream length ÷ basin area = 288 ÷ 48 = 6 km/km².

12 questions · Seed 46 · Age guidance, not curriculum certification