Saturday 30 April 2022
Carbon Nanotubes
This is not a model in the molymod range, but one I made to shown how graphene can be rolled up into a carbon nanotube. It gave the students much to discuss about new materials and composite materials. Making bullet resistant material was a fun topic to look at these materials.
Friday 29 April 2022
Pasco Spectrometer
Thursday 28 April 2022
Templates
Templates are sometimes useful for science and maths. This one helps with the 3D drawings, especially of prisms, although not so good for life like diagrams. Others help get better drawing of science equipment.
Wednesday 27 April 2022
Acceleration due to gravity
Tuesday 26 April 2022
Look into my eyes
Using a close up camera to see how the iris works and using the @pasco human demo eye to see how it works in practice by putting in an iris in the eye. It is also useful to use a camera lens to show the camera T-stops in action.
Monday 25 April 2022
3 Liquids
Three different liquids. All looked like water but they were not what the students expected. I was surprised how many students naturally assumed a clear liquid would be water.
Sunday 24 April 2022
Saturday 23 April 2022
How the eye works
By changing the amount of water in this @pasco lens used in the demo eye model the students were able to use the same lens to create both concave and convex lenses and gain a better idea how the eye worked.
Friday 22 April 2022
Using chemix.org
Thursday 21 April 2022
Wednesday 20 April 2022
Sometimes we just need to get the pullies out in Maths.
Maths is largely an abstract subject, but sometimes when studying subjects like Mechanics, then it is necessary to get the pullies out to improve our understanding of the problem and then the quality of the learning increases dramatically.
Tuesday 19 April 2022
Rapid V/I Curves
Using @pascoscientific voltage-current sensor with the wireless airlink to create a very fast V/I straightline for a resistor and a not so straight line for a bulb.
Monday 18 April 2022
Food Tests
Students trying to remember
Biuret Proteins
Iodine Starch
Fats Alcohol and cold water
Sunday 17 April 2022
Goldleaf Electroscope
I really hadn't appreciated how hard it would be to get a gold-leaf electroscope working. The first model I had used dutch metal and I couldn't get it to work, but this model with real gold leaf did work eventually with me leaning how to attached the gold leaf properly. Putting the gold-leaf on is really quite difficult until you know how.
Saturday 16 April 2022
Woolly Human Gut
A few years ago my wife knitted the entire human gut. It is popular with the students as it is fun to hold and it is life-size so they a sense of the scales and proportion of the gut. It also fits in an abdomen sized clear bag which shows more what if looks like in the body.
Friday 15 April 2022
Specific Heat Capacity
Managed 4 specific Heat capacity experiments, Copper, Brass, Aluminium and Iron in 1 hour using @pascoscientific wireless thermometer and Joulemeter from @SciChemEdu #iteachphysics
Thursday 14 April 2022
Wednesday 13 April 2022
Investigating Heating and cooling
Investigating Heating and cooling using a couple of @pascoscientific wireless thermometers and Capstone. The difference was very dramatic and was much better than using a Leslie cube and different coloured cans. #iteachphysics
Tuesday 12 April 2022
Monday 11 April 2022
Using an Oximeter
One of the fun things we do, testing whether the students have a heartbeat and their Oxygen stats. Some students with painted nails appear to be dead!
Sunday 10 April 2022
Investigating the energy in different fuels
Looking at different alcohols to see how they compare. The equipment doesn’t work well due to the heat loss, so it is up to the students to design a better experiment.
Saturday 9 April 2022
Friday 8 April 2022
Thursday 7 April 2022
Ninja star 2
Unlike the last Ninja star video where the Ninja star is on the VdGG this time its the electrons from the Ninja star that are being used to neutralise the charge on the Van de Graaff generators dome and this causes motion.
Wednesday 6 April 2022
The Ninja Star
The Ninja Star is actually called a Hamilton's mill but in physics it's called a Electrostatic pinwheel. The reason it gets spinning is because the spinner is positively charged, like the dome. Each point has a strong electric field around it. Air molecules close to the points lose electrons and become positively charged ions - their electrons were attracted to the points and used to neutralise some of the charge on the dome. Positively charged ions are repelled by the positive star's points and move away. The points move in the opposite direction (Newton's 3rd law) so the star Spins.
Tuesday 5 April 2022
Thermoelectric Converter
Having some fun with the thermoelectric converter, Ice cold water on one side and near boiling water on the other and getting the fan to spin for quite a while, then repeating with different temperatures in both and timing the fan movement.
Monday 4 April 2022
Sonometer
Using a sonometer to tune a string to a particular frequency using a paper hanger, looking at the relationships between length, tension and thickness on the pitch.
Sunday 3 April 2022
Covalent Bond Revision
Using @snatoms to help with GCSE Chemistry Revision. The models are so quick to made and the students really enjoy these so much more than other s we have. We made dozens of models in a few minutes.
Saturday 2 April 2022
Faradays Laws
Investigating dropping a magnet into a coil. Changing the number of turns, changing the speed of the magnet and changing the polarity of the magnet to see what happens.
Friday 1 April 2022
Total Internal Reflection
I find this one of Physics bits of magic how total internal reflection works. Creates lots of fun predicting what might happen and then trying it out and seeing that something else happens and then trying to come up with an explanation and a rule. Real Science
Electricity Revision
The challenge: Revise all the electricity Topic in 1 hour and carry out 3 required practicals. Easy with the @pascoscientific voltage/curr...
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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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Mechanics: the grand meeting of Maths & Physics! Using strobe light & a ball drop for gravity-acceleration calculations and SUVAT fo...