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One of the things we often forget when engaging students doing science is that science is much more than just hands on, it is also minds on. Science is about ideas, how we think about the world. So perhaps in a remote environment where it is more difficult to do hands on simply because the students may not have the appropriate materials, it might be a better idea to great demonstrations that engage the students and then have conversations among the students about the demonstration.
It is important however to structure the demonstration so the student is focussed on what aspect you want them to experience. One way would be to describe what will be done and then ask the students what they think will happen and why. Then do it, and then discuss what they observed, was it what they expected and if not begin to explore new ideas to help them understand what happened, but asking leading questions.
best,
joe
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