Tuesday 31 October 2023
Hydrometer
I was surprised how few students had met a hydrometer before. A simple experiment making different strength sugar solutions and measuring their strength using the hydrometer.
Monday 30 October 2023
Osmosis and Visking Tubing.
Osmosis and Visking Tubing. It took overnight to run but we managed to get the water to enter the bag fill it full and push the level up the tubing. An hour in the lab was not enough.
Sunday 29 October 2023
Design and Patents act
Attempting to make Copyright, Designs and Patents more exciting. Learning about what they can do without breaking copyright laws.
Saturday 28 October 2023
Calipers
Ask a student to measure something, and then they will grab a ruler. But sometimes we need to be more accurate, and in comes the Vernier or Digital Calipers, something many have never met before.
Friday 27 October 2023
Steam generator
Using a steam generator to heat up a syringe to 100C then injecting a known volume of a volatile substance to see it turn to gas. t takes quite a long time to get everything to 100C but the results are worth it.
Thursday 26 October 2023
Resonance Driver Experiment
We measured the spring and weight moving up and down using @pascoscientific sensors and Capstone. Then we set up a resonance driver and the students had to predict the driver frequencies.
Wednesday 25 October 2023
How a slide Rule works
What are logarithms, how do they work, and why do we use them.? Students learnt that I lived in a time BC (Before Calculators), why I needed a slide rule, and how it worked using two rulers working as a number line. We also looked at log tables. Rather Frightening.
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A level computing 12 Mark questions
Practice planning the 12-mark A-level computing questions. It is not just about getting the facts down but also about organizing them effect...
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Negative feedback is a difficult concept to try and get over so I tried using a balance board and the @pascoscientific smart cart strapped...
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Getting a classic set of results for the titration of NaOH and HCl is not that difficult but it is nice when we can get students to this ...
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Reactions with the different Alcohols to see the change in rate and water for comparison and why not to react with acids. An extra experime...