P2 Science · Chapter 17brightbit.net/worksheets
Soil and Its Uses
Name: ______________________Class: ________Date: ____________Score: ____ / 10
- 1.
Soil is made up of:
(a) Rock particles, humus, water and air(b) Sand and water only(c) Clay and rocks only(d) Humus and leaves only
- 2.
Humus in soil comes from:
(a) Decomposed plants and animals(b) Ground-up rocks(c) Rainwater(d) Sunlight
- 3.
Which type of soil drains water best?
(a) Sandy soil(b) Clay soil(c) Loam soil(d) Humus-rich soil
- 4.
Clay soil holds water well but is not ideal for most plants because:
(a) It becomes waterlogged and has poor drainage and aeration(b) It is too dry(c) It has no nutrients(d) It repels water
- 5.
The best soil type for growing most crops is:
(a) Loam (a mixture of sand, silt, clay and humus)(b) Pure sand(c) Pure clay(d) Gravel
- 6.
Earthworms are beneficial to soil because they:
(a) Aerate soil and add nutrients through their castings(b) Eat all fungi in soil(c) Make soil harder(d) Remove water from soil
- 7.
Soil erosion is caused by:
(a) Wind and water washing away topsoil, especially where there are no plants(b) Earthworms eating soil(c) Rocks absorbing all the soil(d) Too much watering
- 8.
Which of these helps prevent soil erosion on hillsides?
(a) Planting trees and grass(b) Removing all vegetation(c) Pouring concrete over hills(d) Building houses on hills
- 9.
Adding compost (decomposed organic waste) to garden soil improves it by:
(a) Adding nutrients and improving soil structure(b) Making it dryer(c) Removing worms(d) Increasing soil acidity permanently
- 10.
Why do rainforests have thin, poor topsoil despite lush vegetation?
(a) Heavy rain leaches (washes away) nutrients quickly; they are stored in plants instead(b) The heat destroys soil nutrients(c) Rainforests have no decomposers(d) The soil is covered by too many leaves
Answer key — P2 Science: Soil and Its Uses
For parents. Step-by-step explanations for every question are free on brightbit.net.
- 1.(a) Rock particles, humus, water and air
- 2.(a) Decomposed plants and animals
- 3.(a) Sandy soil
- 4.(a) It becomes waterlogged and has poor drainage and aeration
- 5.(a) Loam (a mixture of sand, silt, clay and humus)
- 6.(a) Aerate soil and add nutrients through their castings
- 7.(a) Wind and water washing away topsoil, especially where there are no plants
- 8.(a) Planting trees and grass
- 9.(a) Adding nutrients and improving soil structure
- 10.(a) Heavy rain leaches (washes away) nutrients quickly; they are stored in plants instead
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