Measuring abiotic factors

What are abiotic factors

• Living variables that influence an ecosystem

• Different species interacting with each other

• Non-living components that influence an ecosystem

• The plants that live in a habitat

What is a potential source of error when using a light meter?

Which of these is an abiotic factor?

• Soil pH

• Predation

• Plant growth

• Light intensity

How do abiotic factors affect the distribution of organisms?

• They have no effect

• By influencing the range of species that can survive in a habitat

• By promoting competition between species

• By changing how much grass grows

A is used to measure temperature.

(a)  

How do you minimise errors when using a moisture and pH meter

• Don't stick the probe in too deep

• Take multiple readings in the same spot

• Wipe and dry the probe in between measurements

• Measure after rainfall

How do you increase reliability when measuring abiotic factors?

• Take multiple readings a few days apart

• Take multiple readings in the same spot

• Take multiple readings in similar areas

• Take one reading of each factor

Why do you need to wipe and dry moisture meters in between readings?

What will you do after collecting multiple readings?

• Take an average

• Compare it to a different day

• graph all the readings

Which of these abiotic factors is measured using a light meter?

• daylight

• temperature

• rate of Photosynthesis

• Light intensity