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 42 km and a drainage area of 6 km². Calculate its drainage density in km/km².
42 km · 6 km² · River basin drainage density
2. A river basin has a total stream length of 36 km and a drainage area of 9 km². Calculate its drainage density in km/km².
36 km · 9 km² · River basin drainage density
3. A river basin has a total stream length of 114 km and a drainage area of 38 km². Calculate its drainage density in km/km².
114 km · 38 km² · River basin drainage density
4. 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
5. A river basin has a total stream length of 88 km and a drainage area of 44 km². Calculate its drainage density in km/km².
88 km · 44 km² · River basin drainage density
6. A river basin has a total stream length of 282 km and a drainage area of 47 km². Calculate its drainage density in km/km².
282 km · 47 km² · River basin drainage density
7. A river basin has a total stream length of 48 km and a drainage area of 16 km². Calculate its drainage density in km/km².
48 km · 16 km² · River basin drainage density
8. A river basin has a total stream length of 160 km and a drainage area of 32 km². Calculate its drainage density in km/km².
160 km · 32 km² · River basin drainage density
9. A river basin has a total stream length of 32 km and a drainage area of 8 km². Calculate its drainage density in km/km².
32 km · 8 km² · River basin drainage density
10. A river basin has a total stream length of 117 km and a drainage area of 39 km². Calculate its drainage density in km/km².
117 km · 39 km² · River basin drainage density
11. A river basin has a total stream length of 138 km and a drainage area of 23 km². Calculate its drainage density in km/km².
138 km · 23 km² · River basin drainage density
12. A river basin has a total stream length of 90 km and a drainage area of 30 km². Calculate its drainage density in km/km².
90 km · 30 km² · River basin drainage density

12 questions · Seed 60 · 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 42 km and a drainage area of 6 km². Calculate its drainage density in km/km².
7 km/km²
Drainage density = total stream length ÷ basin area = 42 ÷ 6 = 7 km/km².
2. A river basin has a total stream length of 36 km and a drainage area of 9 km². Calculate its drainage density in km/km².
4 km/km²
Drainage density = total stream length ÷ basin area = 36 ÷ 9 = 4 km/km².
3. A river basin has a total stream length of 114 km and a drainage area of 38 km². Calculate its drainage density in km/km².
3 km/km²
Drainage density = total stream length ÷ basin area = 114 ÷ 38 = 3 km/km².
4. 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.
5. A river basin has a total stream length of 88 km and a drainage area of 44 km². Calculate its drainage density in km/km².
2 km/km²
Drainage density = total stream length ÷ basin area = 88 ÷ 44 = 2 km/km².
6. A river basin has a total stream length of 282 km and a drainage area of 47 km². Calculate its drainage density in km/km².
6 km/km²
Drainage density = total stream length ÷ basin area = 282 ÷ 47 = 6 km/km².
7. A river basin has a total stream length of 48 km and a drainage area of 16 km². Calculate its drainage density in km/km².
3 km/km²
Drainage density = total stream length ÷ basin area = 48 ÷ 16 = 3 km/km².
8. A river basin has a total stream length of 160 km and a drainage area of 32 km². Calculate its drainage density in km/km².
5 km/km²
Drainage density = total stream length ÷ basin area = 160 ÷ 32 = 5 km/km².
9. A river basin has a total stream length of 32 km and a drainage area of 8 km². Calculate its drainage density in km/km².
4 km/km²
Drainage density = total stream length ÷ basin area = 32 ÷ 8 = 4 km/km².
10. A river basin has a total stream length of 117 km and a drainage area of 39 km². Calculate its drainage density in km/km².
3 km/km²
Drainage density = total stream length ÷ basin area = 117 ÷ 39 = 3 km/km².
11. A river basin has a total stream length of 138 km and a drainage area of 23 km². Calculate its drainage density in km/km².
6 km/km²
Drainage density = total stream length ÷ basin area = 138 ÷ 23 = 6 km/km².
12. A river basin has a total stream length of 90 km and a drainage area of 30 km². Calculate its drainage density in km/km².
3 km/km²
Drainage density = total stream length ÷ basin area = 90 ÷ 30 = 3 km/km².

12 questions · Seed 60 · 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 42 km and a drainage area of 6 km². Calculate its drainage density in km/km².
42 km · 6 km² · River basin drainage density
2. A river basin has a total stream length of 36 km and a drainage area of 9 km². Calculate its drainage density in km/km².
36 km · 9 km² · River basin drainage density
3. A river basin has a total stream length of 114 km and a drainage area of 38 km². Calculate its drainage density in km/km².
114 km · 38 km² · River basin drainage density
4. 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
5. A river basin has a total stream length of 88 km and a drainage area of 44 km². Calculate its drainage density in km/km².
88 km · 44 km² · River basin drainage density
6. A river basin has a total stream length of 282 km and a drainage area of 47 km². Calculate its drainage density in km/km².
282 km · 47 km² · River basin drainage density
7. A river basin has a total stream length of 48 km and a drainage area of 16 km². Calculate its drainage density in km/km².
48 km · 16 km² · River basin drainage density
8. A river basin has a total stream length of 160 km and a drainage area of 32 km². Calculate its drainage density in km/km².
160 km · 32 km² · River basin drainage density
9. A river basin has a total stream length of 32 km and a drainage area of 8 km². Calculate its drainage density in km/km².
32 km · 8 km² · River basin drainage density
10. A river basin has a total stream length of 117 km and a drainage area of 39 km². Calculate its drainage density in km/km².
117 km · 39 km² · River basin drainage density
11. A river basin has a total stream length of 138 km and a drainage area of 23 km². Calculate its drainage density in km/km².
138 km · 23 km² · River basin drainage density
12. A river basin has a total stream length of 90 km and a drainage area of 30 km². Calculate its drainage density in km/km².
90 km · 30 km² · River basin drainage density

12 questions · Seed 60 · 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 42 km and a drainage area of 6 km². Calculate its drainage density in km/km².
7 km/km²
Drainage density = total stream length ÷ basin area = 42 ÷ 6 = 7 km/km².
2. A river basin has a total stream length of 36 km and a drainage area of 9 km². Calculate its drainage density in km/km².
4 km/km²
Drainage density = total stream length ÷ basin area = 36 ÷ 9 = 4 km/km².
3. A river basin has a total stream length of 114 km and a drainage area of 38 km². Calculate its drainage density in km/km².
3 km/km²
Drainage density = total stream length ÷ basin area = 114 ÷ 38 = 3 km/km².
4. 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.
5. A river basin has a total stream length of 88 km and a drainage area of 44 km². Calculate its drainage density in km/km².
2 km/km²
Drainage density = total stream length ÷ basin area = 88 ÷ 44 = 2 km/km².
6. A river basin has a total stream length of 282 km and a drainage area of 47 km². Calculate its drainage density in km/km².
6 km/km²
Drainage density = total stream length ÷ basin area = 282 ÷ 47 = 6 km/km².
7. A river basin has a total stream length of 48 km and a drainage area of 16 km². Calculate its drainage density in km/km².
3 km/km²
Drainage density = total stream length ÷ basin area = 48 ÷ 16 = 3 km/km².
8. A river basin has a total stream length of 160 km and a drainage area of 32 km². Calculate its drainage density in km/km².
5 km/km²
Drainage density = total stream length ÷ basin area = 160 ÷ 32 = 5 km/km².
9. A river basin has a total stream length of 32 km and a drainage area of 8 km². Calculate its drainage density in km/km².
4 km/km²
Drainage density = total stream length ÷ basin area = 32 ÷ 8 = 4 km/km².
10. A river basin has a total stream length of 117 km and a drainage area of 39 km². Calculate its drainage density in km/km².
3 km/km²
Drainage density = total stream length ÷ basin area = 117 ÷ 39 = 3 km/km².
11. A river basin has a total stream length of 138 km and a drainage area of 23 km². Calculate its drainage density in km/km².
6 km/km²
Drainage density = total stream length ÷ basin area = 138 ÷ 23 = 6 km/km².
12. A river basin has a total stream length of 90 km and a drainage area of 30 km². Calculate its drainage density in km/km².
3 km/km²
Drainage density = total stream length ÷ basin area = 90 ÷ 30 = 3 km/km².

12 questions · Seed 60 · Age guidance, not curriculum certification