This week the Enviro Avengers did more pH testing, today we were visited by Mrs Bebbleman who gave us a new experiment to do. First off she introduced the scientific method to us, a method that all scientists and researchers (researchers involving science) use to experiment on things. Our experiment for this week was: Can we use the gutter water to water our plants? After we got the question we started experimenting.
We got a worksheet and formed into groups of 2-3 people had started the experiment, well kinda, we first had to plan it out and form a hypothesis, we also had to explain what would be in our experiment and a common experiment explanation was we would test the pH level of our water. We then had to find the variables of the experiment, the variables were: the controlled variable which are things that don’t change in the experiment, the independent variable which were things that do change in the experiment, the dependent variable which is a thing that is measured during the experiment.
After all that we moved onto the real experiment of measuring the pH level of the gutter water/rainwater. First we tested rainwater which had an average pH level of 5-6, next we grabbed some gutter waste and put it in our water and stirred it and put it in some filter paper which then removed the waste from the water and dropped the water into a cup. We then tested it and it was about the same pH level as just normal rain water, which means that using gutter water won’t affect the plants whatsoever. At the end Mrs Bebbleman showed us an easy way to filter water, first you need to clean some sand, then put some cotton wool in a bottle that is chopped in half horizontally and put the sand in. Then simply just put some water in and there we go, the water is now filtered.
Now in the afternoon we are continuing to do our research on the power we are collecting for the water tank. We are all very excited about our trip to Coromandel waterworks park, which is going to be next friday (aka Friday the 20th of November 2020).