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 168 km and a drainage area of 24 km². Calculate its drainage density in km/km².
168 km · 24 km² · River basin drainage density
2. A river basin has a total stream length of 252 km and a drainage area of 42 km². Calculate its drainage density in km/km².
252 km · 42 km² · River basin drainage density
3. A river basin has a total stream length of 208 km and a drainage area of 26 km². Calculate its drainage density in km/km².
208 km · 26 km² · River basin drainage density
4. A river basin has a total stream length of 63 km and a drainage area of 9 km². Calculate its drainage density in km/km².
63 km · 9 km² · River basin drainage density
5. A river basin has a total stream length of 50 km and a drainage area of 25 km². Calculate its drainage density in km/km².
50 km · 25 km² · River basin drainage density
6. A river basin has a total stream length of 54 km and a drainage area of 27 km². Calculate its drainage density in km/km².
54 km · 27 km² · River basin drainage density
7. A river basin has a total stream length of 280 km and a drainage area of 40 km². Calculate its drainage density in km/km².
280 km · 40 km² · River basin drainage density
8. A river basin has a total stream length of 132 km and a drainage area of 44 km². Calculate its drainage density in km/km².
132 km · 44 km² · River basin drainage density
9. A river basin has a total stream length of 50 km and a drainage area of 10 km². Calculate its drainage density in km/km².
50 km · 10 km² · River basin drainage density
10. A river basin has a total stream length of 80 km and a drainage area of 10 km². Calculate its drainage density in km/km².
80 km · 10 km² · River basin drainage density
11. A river basin has a total stream length of 64 km and a drainage area of 8 km². Calculate its drainage density in km/km².
64 km · 8 km² · River basin drainage density
12. A river basin has a total stream length of 180 km and a drainage area of 30 km². Calculate its drainage density in km/km².
180 km · 30 km² · River basin drainage density

12 questions · Seed 48 · 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 168 km and a drainage area of 24 km². Calculate its drainage density in km/km².
7 km/km²
Drainage density = total stream length ÷ basin area = 168 ÷ 24 = 7 km/km².
2. A river basin has a total stream length of 252 km and a drainage area of 42 km². Calculate its drainage density in km/km².
6 km/km²
Drainage density = total stream length ÷ basin area = 252 ÷ 42 = 6 km/km².
3. A river basin has a total stream length of 208 km and a drainage area of 26 km². Calculate its drainage density in km/km².
8 km/km²
Drainage density = total stream length ÷ basin area = 208 ÷ 26 = 8 km/km².
4. A river basin has a total stream length of 63 km and a drainage area of 9 km². Calculate its drainage density in km/km².
7 km/km²
Drainage density = total stream length ÷ basin area = 63 ÷ 9 = 7 km/km².
5. A river basin has a total stream length of 50 km and a drainage area of 25 km². Calculate its drainage density in km/km².
2 km/km²
Drainage density = total stream length ÷ basin area = 50 ÷ 25 = 2 km/km².
6. A river basin has a total stream length of 54 km and a drainage area of 27 km². Calculate its drainage density in km/km².
2 km/km²
Drainage density = total stream length ÷ basin area = 54 ÷ 27 = 2 km/km².
7. A river basin has a total stream length of 280 km and a drainage area of 40 km². Calculate its drainage density in km/km².
7 km/km²
Drainage density = total stream length ÷ basin area = 280 ÷ 40 = 7 km/km².
8. A river basin has a total stream length of 132 km and a drainage area of 44 km². Calculate its drainage density in km/km².
3 km/km²
Drainage density = total stream length ÷ basin area = 132 ÷ 44 = 3 km/km².
9. A river basin has a total stream length of 50 km and a drainage area of 10 km². Calculate its drainage density in km/km².
5 km/km²
Drainage density = total stream length ÷ basin area = 50 ÷ 10 = 5 km/km².
10. A river basin has a total stream length of 80 km and a drainage area of 10 km². Calculate its drainage density in km/km².
8 km/km²
Drainage density = total stream length ÷ basin area = 80 ÷ 10 = 8 km/km².
11. A river basin has a total stream length of 64 km and a drainage area of 8 km². Calculate its drainage density in km/km².
8 km/km²
Drainage density = total stream length ÷ basin area = 64 ÷ 8 = 8 km/km².
12. A river basin has a total stream length of 180 km and a drainage area of 30 km². Calculate its drainage density in km/km².
6 km/km²
Drainage density = total stream length ÷ basin area = 180 ÷ 30 = 6 km/km².

12 questions · Seed 48 · 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 168 km and a drainage area of 24 km². Calculate its drainage density in km/km².
168 km · 24 km² · River basin drainage density
2. A river basin has a total stream length of 252 km and a drainage area of 42 km². Calculate its drainage density in km/km².
252 km · 42 km² · River basin drainage density
3. A river basin has a total stream length of 208 km and a drainage area of 26 km². Calculate its drainage density in km/km².
208 km · 26 km² · River basin drainage density
4. A river basin has a total stream length of 63 km and a drainage area of 9 km². Calculate its drainage density in km/km².
63 km · 9 km² · River basin drainage density
5. A river basin has a total stream length of 50 km and a drainage area of 25 km². Calculate its drainage density in km/km².
50 km · 25 km² · River basin drainage density
6. A river basin has a total stream length of 54 km and a drainage area of 27 km². Calculate its drainage density in km/km².
54 km · 27 km² · River basin drainage density
7. A river basin has a total stream length of 280 km and a drainage area of 40 km². Calculate its drainage density in km/km².
280 km · 40 km² · River basin drainage density
8. A river basin has a total stream length of 132 km and a drainage area of 44 km². Calculate its drainage density in km/km².
132 km · 44 km² · River basin drainage density
9. A river basin has a total stream length of 50 km and a drainage area of 10 km². Calculate its drainage density in km/km².
50 km · 10 km² · River basin drainage density
10. A river basin has a total stream length of 80 km and a drainage area of 10 km². Calculate its drainage density in km/km².
80 km · 10 km² · River basin drainage density
11. A river basin has a total stream length of 64 km and a drainage area of 8 km². Calculate its drainage density in km/km².
64 km · 8 km² · River basin drainage density
12. A river basin has a total stream length of 180 km and a drainage area of 30 km². Calculate its drainage density in km/km².
180 km · 30 km² · River basin drainage density

12 questions · Seed 48 · 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 168 km and a drainage area of 24 km². Calculate its drainage density in km/km².
7 km/km²
Drainage density = total stream length ÷ basin area = 168 ÷ 24 = 7 km/km².
2. A river basin has a total stream length of 252 km and a drainage area of 42 km². Calculate its drainage density in km/km².
6 km/km²
Drainage density = total stream length ÷ basin area = 252 ÷ 42 = 6 km/km².
3. A river basin has a total stream length of 208 km and a drainage area of 26 km². Calculate its drainage density in km/km².
8 km/km²
Drainage density = total stream length ÷ basin area = 208 ÷ 26 = 8 km/km².
4. A river basin has a total stream length of 63 km and a drainage area of 9 km². Calculate its drainage density in km/km².
7 km/km²
Drainage density = total stream length ÷ basin area = 63 ÷ 9 = 7 km/km².
5. A river basin has a total stream length of 50 km and a drainage area of 25 km². Calculate its drainage density in km/km².
2 km/km²
Drainage density = total stream length ÷ basin area = 50 ÷ 25 = 2 km/km².
6. A river basin has a total stream length of 54 km and a drainage area of 27 km². Calculate its drainage density in km/km².
2 km/km²
Drainage density = total stream length ÷ basin area = 54 ÷ 27 = 2 km/km².
7. A river basin has a total stream length of 280 km and a drainage area of 40 km². Calculate its drainage density in km/km².
7 km/km²
Drainage density = total stream length ÷ basin area = 280 ÷ 40 = 7 km/km².
8. A river basin has a total stream length of 132 km and a drainage area of 44 km². Calculate its drainage density in km/km².
3 km/km²
Drainage density = total stream length ÷ basin area = 132 ÷ 44 = 3 km/km².
9. A river basin has a total stream length of 50 km and a drainage area of 10 km². Calculate its drainage density in km/km².
5 km/km²
Drainage density = total stream length ÷ basin area = 50 ÷ 10 = 5 km/km².
10. A river basin has a total stream length of 80 km and a drainage area of 10 km². Calculate its drainage density in km/km².
8 km/km²
Drainage density = total stream length ÷ basin area = 80 ÷ 10 = 8 km/km².
11. A river basin has a total stream length of 64 km and a drainage area of 8 km². Calculate its drainage density in km/km².
8 km/km²
Drainage density = total stream length ÷ basin area = 64 ÷ 8 = 8 km/km².
12. A river basin has a total stream length of 180 km and a drainage area of 30 km². Calculate its drainage density in km/km².
6 km/km²
Drainage density = total stream length ÷ basin area = 180 ÷ 30 = 6 km/km².

12 questions · Seed 48 · Age guidance, not curriculum certification