Abiotic Factors videos

Transcript of Air temperature video

But we will also use a thermometer which we need to take out of this orange case and the we'll need our glass thermometer.

Hold it from the top about a meter from the ground. Wait about a minute if there is sun out make shade with your body so it's not in the full sun but today being overcast it doesn't matter and then you can read off your result.

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Transcript of Light intensity video

Our next abiotic factor we're looking at is sunlight intensity and for that we use a light meter which is in this black case. So we open it up. We take the cap off the lens and we turn our gauge as far to the right as we can.

Then we hold up our gauge there and we keep looking at the reading which again is digital but it's going to keep changing so you take watch it for about half a minute take an average reading and then at the end you actually have to times it by 100 so you'll add two zeros to your result.

So the result for this one is about sixty six thousand eight hundred Lux. Lux.

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Wind Direction Transcript

A couple of things using a compass.

Number one you've got to hold the compass level. There are moving parts on a compass so what we're trying to establish is where north is at the moment. We have the red needle which will always point towards magnetic north.

We've got a compass housing which also rotates and we've rotated that to match where the magnetic north is. We also have a direction of travel arrow on here and that's also aligned with north.

So the wind is coming from over this direction to my left. I'm going to turn the direction of travel arrow here to point to where the wind is coming which is over about here and at that point there we can establish what degrees, or which direction, the wind is coming from.

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