In this activity the students were
assigned to search a simulation in phet Colorado that is related to biology and
make an accompanying worksheet based on the simulation.
This
simulation is about pH scale, which determine whether each liquid solution and
mixture is acidic, basic or neutral. This simulations can be visualized through
the relative number of the hydroxide and hydronium ions in each of the solutions
and it can be switched between logarithmic and linear scales. Also it can test
if there is a change in pH by changing the volume or diluting with water.
When the
pH level bar is at seven it means that the solution is neutral for example
water, when it is above seven the solution is considered to be basic and if it’s
below seven the liquid sample is acidic. Based on what I have experienced,
simulation is a great help for students, teachers and learning seekers to understand
a topic clearly even without conducting the actual experiment that may be due
to lack of apparatus or materials needed.
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| pH scale simulation accompanying worksheet |
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| Showing water that has a pH level of 7.0 |
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| Showing vomit that has a pH level of 2.0 |
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| Showing hand soap solution that has a pH level of 10.0 |
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