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Asked by anon-373958 to Ambre, Karen E on 13 Nov 2023. This question was also asked by anon-373460.
Question: What kind of experiments do you like to do in science class?
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Karen Edwards answered on 13 Nov 2023:
Good question. I haven’t done a lot of work with science classes in a while so I’m not sure I have a good answer for you. As a computer modeller, I have gone to work with students and brought some marine data sets trying to help them link things like temperature, nutrients and phytoplankton growth, for instance. I hope this gives the students real world example of why we collect data and how it can be useful.
More importantly, what kind of experiments do you like?
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Ambre Chapuis answered on 17 Nov 2023:
One experiment that everybody loves (my first) is the extraction of DNA. I do not get bored of it, found it always exciting to see your own DNA or other specimens’ DNA in a little flask.
Comments
Anuschka commented on :
I like to show pupils how their breath changes the acidity of water just by blowing bubbles. You can use a pH meter if you have one or just pH indicator paper. It explains that whatever is in the air dissolves into the water and has an effect there. Lower acidity affects shelled animals just like carbonated drinks affects our teeth – making them brittle and reducing their fitness.
Anton commented on :
If you go near the water’s edge on a stony beach by a freshwater lake you will see the waves. You will think the surface of the lake is still except for those waves that splash and ripple around.
But if you dig a hole near the waters edge beyond the splash of the waves it will fill with water that seeps through the pebbles. And if you watch the water you will often see that it is rising and falling slowly. That is because the whole lake is slopping around slowly from the action of the wind. Rather like you can make the water in your bath slosh around by gently waving your hand back and forth until the bath slops over the edge and your parents give you a row!