U3 KA 2 Sampling Techniques & Measuring Abiotic Factors
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| What is a Pitfall trap used to sample? | small ground insects / invertebrates
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| What are Quadrats used to sample? | Plants
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| What is a limitation of a pitfall trap | difficult in hard soil
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| What is used to sample small ground invertebrates? | Pitfall Trap
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| What is used to sample Plants? | Quadrat
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| What is a limitation of a quadrat? | Time consuming
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| What is a source of error with a pitfall trap and how can it be avoided ? | Organisms eat each other / check traps regularly OR Birds eat organisms /cover the trap
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| What is a source of error when using a Quadrat and how can it be avoided? | Not thrown Randomly,/ Don’t look where throwing it
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| What is used to measure light intensity? | A light intensity meter
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| What is a source of error when using a Light Intensity meter and how can it be avoided? | Shadow on the meter / hold at arm’s length.
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| What is a source of error when using a Moisture Meter and how can it be avoided? | Moisture on probe / wipe between readings
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| What is a source of error when using a pH Meter and how can it be avoided? | Soil on probe / wipe between readings
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| What is used to measure soil pH? | A pH meter
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| What is used to measure soil Moisture? | A light Moisture meter
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| What is used to measure soil temperature | A thermometer
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| What is a source of error when using a soil Thermometer and how can it be avoided? | Not put to same depth/ put to same depth bulb not in soil
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Created by:
nscobie
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