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.

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.

Design and Patents act

 Attempting to make Copyright, Designs and Patents more exciting. Learning about what they can do without breaking copyright laws.

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.

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.

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.

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.