g by freefall

 #Physics The @LEGO_Group technics is out measuring a ball bearing falling 50cm. It comes up with a very accurate and reproducible value of g. #iteachphysics #Science #STEM

Diving Analysis

 #Physics Using @pascoscientific Capstone to look at one of my students on a spring board and diving. Using Capstone we can analyse her movement, PE and KE. #iteachphysics #Science #STEM

Going green Podcast #23 | What is meant by Carbon Neutral?

What is meant by Carbon Neutral and how can we get there is a common question. Philip and Paul discuss how they can get to carbon neutral or better. My company buys in Power. Much of this is made via solar panels, but at night we need to get the power from the grid, which is up to 50% renewably generated. Our hot water is supplied during the summer by solar thermal, but in the winter not enough heat is generated so we need to buy in green house unfriendly methane gas. We need water and this also has a greenhouse content to it. Our vehicles are not electric but we don't use them much for the company only going out a short distance every few weeks. To offset these emissions we need to buy some carbon credit in some form by planting some new tree of finding some other form of carbon sequestration. #climateemergency #cop26glasgow #climatecrisis #environment #globalwarming #climatechangeisreal #carbonneutrality

Immutable theory of light

 Looking at light passing through one prism then taking just one of those colours and trying to split that light again in another prism. It doesn't get split any more. Red light stays as red light.

Heating effect of electricity

 #Physics Teaching about electrical circuits and resistance and heating. Setting iron wool on fire with only a few volts. The students wondered why I wouldn't hold the wool in my hands until they saw this. #iteachphysics #Science #STEM

Parallelogram of Forces

 Teaching #Physics online looking at the parallelogram of forces using a force board. Even though the students are back at school many are still forced to isolate or have Covid and then I need to teach them online. #iteachphysics #Science #STEM

Centre of Mass

 #Physics Using and inclined plane, a phone inclinometer and some masses with foam to raise the mass higher with adding any mass lower down to look at the effect of centre of mass, angle and the tipping point. Fun Experiment #iteachphysics #Science #STEM With the mass higher up the object falls over at a lower angle. With a shorter piece of foam the centre of mass is lower and the angle is much higher before the object falls.

Nylon Rope Track

 Some fun #Alevel #Chemistry carrying out the nylon rope trick. Seeing the faces on the students as the nylon is pulled from where the two surfaces touch and drawn out into a string. #Science #STEM #iteachchemistry

Inclined Plane

 #ALevel #Physics Theory and Practice looking to the inclined plane. Learning about Mg sin Ɵ and mg Cos Ɵ.

Seeing the equations, working them out and then finding the real world values are the same. #iteachphysics #STEM #Science

Interactive Physics

 #Physics Using Interactive Physics to demonstrate different physics concepts. Old software but works well for certain demos. Can measure using this then try it out in the real world and compare. #iteachphysics #STEM #Science

 #Physics Something I have wanted for a while a Wave tank. Just arrived. Marvellous for looking at standing waves, reflection and with a laser wonderful examples of refraction. #iteachphysics #STEM #Science

Diffusion

 #Science It's the simple experiments that seem to cause the most interest and fascination. One Potassium Permanganate crystal dissolving in hot and cold water #STEM #iteachphysics @ChatPhysics

Lung Volume

 #Biology #GCSE A simple experiment to Measure my Lung volume. With Covid-19 around this experiment is less safe, so a video works instead! #iteachbiology

@chatbiology

#STEM #Science

Acid Spill

 Needed to top up some acid but when I went to the store the Nitric acid bottle had decomposed and split. Nearly all the acid was contained in a plastic bag but my jeans suffered a bit. Now in the washing machine #Science

I Can't Be Asked to balance equations

 #GCSE #Chemistry CBA Can't Be Asked to balance chemical equations. The students seem to find this easy to remember and do and it works. #iteachchemistry #STEM #Science First the student writes down the equation with the correct formula. Sometimes we need to see that something like a carbonate is the same at the beginning and end, then they draw out a grid. Chemical, Before and After CBA

They write down each chemical in the equation and then write down the number of atoms of each.

Then they balance, If there are two Fluorine atoms at the beginning then there must be two at the end. They then rebalance the equation until its done.

Series and Parallel Circuits

 #GCSE #Physics Using both the old and new to teach Electricity and circuits. Also using the @MatrixTSL Locktronics to more effectively build all the circuits. Easy to build using the same diagrams. #STEM #Science #iteachphysics @PhETsims

Rates of Reaction

 #Chemistry Using a @pascoscientific colorimeter to determine the rate of reaction of Sodium Thiosulfate and HCl Some excellent rate graphs produced #iteachchemistry #STEM #Science

Kipps Apparatus

 #GCSE #Chemistry setting up a couple of Kipps apparatus. One to make hydrogen and the other to take apart and explain how it works to the students - Such a cool piece of equipment #STEM #Science #iteachchemistry

To Make Hydrogen, Acid is poured in the top and it makes its way through a tube to the bottom tank which gradually fills up. The middle tank has some zinc metal in it which will react with the acid to form hydrogen and will come out of the middle gas tap as the acid enters the middle tank and reacts with the acid. Now the clever bit. When the gas tap is turned off the pressure increases, the acid is pushed down into the bottom tank and up into the top tank. No acid touches the zinc so the reaction stops. When you need more hydrogen the gas tap is opened, releasing the pressure and the acid level rises again and touches the zinc and the reaction starts all over again.

The Kipps apparatus is very versatile making several different gases, not not used much as it is more convenient to buy a cylinder. Now this may be true but nothing like so cool.

Pressure and Temperature

 Pressure and Temperature #GCSE #Physics Some hands on practical making a difference to learning. #iteachphysics #STEM #Science As the temperature increases so does the pressure

Heart dissection

 Getting ready for a heart dissection. #Biology I feel it is so important that the students what the real structures are like rather than just looking in books. #iteachbiolgy @chatbiology #STEM #Science