1) What is the name of the object we built to show the activity of earthworms in the soil? a) A wormery b) A soil sieve c) A graduated cylinder 2) What is capillary water? a) Soil that drains down through the soil due to gravity b) Water that moves upward through the soil through small soil pores c) Soil that adsorbs onto the surface of soil colloids and is unavailable for plants to use 3) What is the name of the piece of equipment which consists of metal stacks in which you add soil and shake to separate out the soil particles? a) A graduated cylinder b) A soil shaker c) Soil sieves 4) Which of the following is NOT an effect of spreading lime on the soil? a) It makes soil pH more acidic b) It increases soil pH c) It improves flocculation in the soil 5) What is "lime"? a) The pulp of the lime fruit b) Ground limestone c) Lithium Metal 6) What is the pH of lime? a) 3 b) 7 c) 11 7) What is this called? a) The Soil Triangle b) The Loam Graph c) The Texture Trapezoid 8) Which of the following lists the soil particles in the correct order from smallest to largest? a) Silt, Clay, Sand b) Sand, Silt, Clay c) Clay, Silt, Sand 9) What is the definition of loam soil? a) Soil with the best drainage and aeration b) Soil with equal parts sand, silt, and clay c) Soil with the highest amount of humus 10) Describe the fertility of a clay soil a) High b) Low c) Medium 11) Is sandy soil prone to drought or waterlogging? a) Waterlogging b) Drought c) Neither 12) Describe the ease of tilling of a loam soil a) Hard to till b) Easy to till 13) Which of the following is NOT a part of the carbon cycle? a) Animals consume carbon in their food and breathe out CO2 into the air b) Plants take in CO2 from the air during photosynthesis c) Chemical fertilisers (NPK) add carbon to the soil 14) How could farmers reduce their carbon footprint? a) Reduce diesel emissions b) Burn more coal and turf c) Till the soil on a regular basis 15) Which of the following can cause soil to become compacted? a) Rain b) Earthquakes c) Use of heavy machinery and livestock moving over the soil 16) Which of the following is an impact of soil compaction? a) Improved drainage and aeration b) Reduced rates of drainage through the soil, leading to waterlogging/flooding c) Increased populations of earthworms in the soil 17) What is the name of the machinery used to break up compacted soil? a) Subsoiler b) Seed drill c) Combine 18) Which of the following is a method which can increase levels of organic carbon in the soil? a) Spreading chemical (NPK) fertiliser b) Spreading slurry c) Addition of manure, compost or stubble back into the soil 19) What is the name for an educated guess made at the beginning of an experiment? a) Hypothesis b) Variable c) Method 20) What is an independent variable? a) The variable which you measure b) The variable which you change c) The variable(s) you keep the same 21) What is the dependent variable? a) The variable which you measure b) The variable which you change c) The variable(s) you keep the same 22) What is the control variable? a) The variable which you measure b) The variable which you change c) The variable(s) you keep the same 23) Which of the following shows the correct composition of soil? a) Mineral matter 25%, Water 25%, Air 25%, Organic Matter 5% b) Mineral matter 45%, Water 25%, Air 25%, Organic Matter 5% c) Mineral matter 50%, Water 20%, Air 20%, Organic Matter 10% 24) Which of the following is an advantage of earthworms in the soil? a) The burrow through the soil, mixing soil layers and improving aeration and drainage b) They decrease levels of organic matter c) They cause soil to become compacted

5th Year Ag. Science Soils Review Game - Chs. 5, 6, 7

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