understanding the environment
there are many ways of answering different questions about the soil, water and air like temperature and murkiness.
water temperature
for this you need a bucket, a thermometer and the water that you're testing. we put the thermometer in the bucket of water and swish it around a couple of times, wait 2 minutes then get a temperature reading.
water turbidity
this is the process of seeing how murky the water is, we used a special tube wich had 3 squiggly lines at the bottom and slowly we had to fill it up until we could no longer see the squiggly lines. then we check the number on the side and record it as ... NTU. this process was very useful accept when we tipped out the water into the bucket it went everywhere.
sediment pH
in this test we worked out whether the soil was acidic or alkaline. we put a small sample of soil onto a petri dish. then we sprinkle a small amount of barium sulfate onto the soil. we then add 3 drops of the universal indicator and wait for a colour change. we then look at the colour code to determine if its acidic or alkaline.
air temperature
we use a thermometer to measure the air temperature.
water salinity
we measure the saltiness of the water through a special device and then calculate the ... parts per thousand.
the results from the excursion showed the quality of the environment to be normal if not decent as the water was lightly polluted but the soil and air was stable.