The Royal Liberty School

Latest Activities

fingerprint key ring

12th June 2012

the boys were invited to produce their own key rings using finger printing methods as currently used by the police to produce an insert for the key ring.

The boys this week were shown how to test different metal solutions using the flame test, the boys firstly checked the colour of the flame with known metals, they were then given unknown metals to check.

The Disappearing Cross

22nd November 2011

when Sodium Thiosuulfate is mixed with Hydrochloric Acid it produces Sulphur, also the solution goes cloudy.

The pupils this week were given the task of working out the rates of reaction for different concentrates of Hydrochloric acid when mixed with Sodium Thiosulfate.

The pupils were split into pairs and had the following equipment, one piece of paper with a thick black cross on it, a conical flask, a measuring beaker, and a timer.

The pupils had to measure out 25cm3 of Sodium Thiosulfate into the flask,(which was placed on the cross, to this was added the fist 25cm3 concentrate of 0.2M Hydrochloric Acid, the boys then timed how long it took before they could not see the black cross on the paper, the results were recorded.

this experiment was repeated of the following concentrates of Acid: 0.4M, 0.6M, 0.8M, and 1.0M.

Each Concentrate was repeated twice to gain an average.

when all the results were collated they were plotted onto a graph.

the boys enjoyed the experiment very much.

Infer-red tank kits

03rd October 2011

Making their own infer-red controlled tanks

This project had the pupils building their own tanks from kits, these tanks were controlled via an infer-red beam sent from a hand held controller, the pupils had to construct these tanks from the instructions as well as the controllers. these tanks had two motors which each controlled one set of wheels.

Each controller had a selector switch so more than one tank could be operated at the same time, also each tank was fitted with firing mechanism which when activated could diable the other tank by firing an infer-red beam.

This project was enjoyed by all especially the battle between the tanks at the end.