Convection Currents

#GCSE #Physics Looking at Convection Currents with two chimneys and a tea light. The smoke is sucked down one tube and up the other. Nice illustrative experiment. #iteachphysics #STEM #Science

 

Burning Calcium

 #Science Burning Calcium in Air. After burning Magnesium what could be better than burning a piece of calcium. Loved by the students. #STEM #Chemistry

Cheek Cell

 #GCSE #Physics #Biology Looking at some cheek cells down a microscope. Microscopes can be fun - using a digital microscope to look at ties, blazers and jumpers introducing the world we can see then onto cells #STEM #Science

Pushing a mass

 A Mass on a String #GCSE #Physics. I only used a 1kg mass because although I know it won't hit me, I am always that little be scared that I might push it just a bit and ... #iteachphysics #STEM #Science

Wilmshurst Machine

#GCSE #Physics Getting the Wilmshurst machine out to do its party piece this week. It can do all the experiments the Van der Graff generator does, and student powered. #iteachphysics #STEM #Science

Podcast Reducing Emissions

 

Scientists are calling for emissions in Carbon Dioxide to be cut by 7.6% per year. This means that by 2030 the Carbon Dioxide emissions will be cut by half. The scientists are also calling for a 3% a year cut in extracting coal, oil and gas - effectively leaving the reserves in the ground. But at present rather than a drop in production, the production has actually increased worldwide. During the pandemic most people thought that there would be a cut in emissions with few cars and planes travelling, but with people at home more emissions were produced.

Philip and Paul also look at "Orca", the name of Climeworks' new direct air capture and storage plant in Iceland. It will take carbon dioxide removal to the next level by combining direct air capture technology with the underground storage of carbon dioxide. Orca will capture 4000 tons of Carbon Dioxide per year - making it the world's biggest climate-positive facility to date. 

Safer heating Limestone

 How do you make your wire baskets to hold Limestone when heating it into Calcium Oxide - wind nichrome wire around and around. Sometimes I try to wrap as a parcel. - with mine the wire always expand lots and sometimes the limestone falls out? The Horizontal Bunsen stops limestone falling in if bits fall off. Then the Bunsen doesn't get damaged.. #STEM #Science #GCSE #Chemistry