garlic and mint as anti-microbial agents

 Some success with our A level #microbiology #biology practical looking at garlic and mint as anti-microbial agents. 1 out of 8 worked - Under identical conditions the bugs do as they please. #science #STEM One of the discs Garlic managed a 1.5cm ring of lysed bacteria.

interferometer

A level #Physics First build of the interferometer. Using a
@pascoscientific
mini loudspeaker connected to a signal generator and a wireless sound sensor and a motion sensor to measure the length of the extension. #iteachphysics
@ChatPhysics

Aseptic Technique

Teaching A level #microbiology My student had to made up the Nutrient broth and make all the Agar plates before she could start the experiment. Much of this is learning aseptic technique. Hopefully all her plates will be clean to start the expt tomorrow. #teaching

Working Model of Heart

Teaching GCSE Biology using a model heart to demonstrate the circulatory system. I find that only half filling with red liquid better shows the direction of the flow.

Resonance with Tuning Forks

 Two identical tuning forks, one resonance box and a ping pong ball to show how the second tuning fork picks up the sound from the first. #iteachphysics Having fun with physics doing some practice before the lessons.

Darkbox

 A level/GCSE #Physics Using a Lightbox as a Darkbox for looking a optics experiments in the lit classroom. Using here a @pascoscientific light source and a Prism to split up light. #iteachphysics @ChatPhysics

Refraction

 A level/GCSE #Physics Refraction an alternative way- works well on a visualiser #iteachphysics @ChatPhysics Good as an intro along with the glass of water and the arrow changing direction. This introduces refraction of different liquids.