Monday, 29 November 2021

Mobile phones in lessons

 Many teachers don't like phones in their classrooms. Some are afraid their lesson could be recorded. I like my students to use their mobile phones in the lab. They record all my experiments. The good and the bad. My students Record the experiments, they take photos of the set ups. They enjoy taking Slo-mo of fast and not so fast events and using the phone as a microscope. Amazingly they usually organise themselves that one student does the recording and passes the files around. They act very responsibly and I have never had any problems. On the contrary the opposite is true. #STEM #Science #iteachphysics



Sunday, 28 November 2021

Water Clock

 I need a much better water clock to do this experiment Rule of odds - Todays job. A cart is rolled down the track. As it passes a bell it rings the bell. We try and make the time between each bell ring the same. As the cart is accelerating, the gap between each bell gets larger. in the ratio 1:3:5:7 etc Once this is set up then I use water coming out from a tap to fill up different measuring cylinders. The amount of water is in the ratio 1:4:9:16:25








Saturday, 27 November 2021

Flame Tests

 Flame Tests are one of my favourite topics. Explaining the colours of fireworks to year 8 in an online lesson.

Crimson Lithium
Lilac Potassium
Yellow Sodium
Red Strontium
Apple Green Barium
Green Boron
Blue Green Copper






Friday, 26 November 2021

DNA replication and Protein Synthesis

 Its been a busy week of covering DNA replication and Protein synthesis, my models have been duplicated, copied and translated almost as many times as a real cell this week. @chatbiology #Science #STEM




Thursday, 25 November 2021

Electrostatics

 #Physics is all about learning about electrostatics. Learning about like charges repel and unlike charges attract is such a keystone fundamental idea. #iteachphysics #Science #STEM




Wednesday, 24 November 2021

Evolution Day

 Its #EvolutionDay 162 years after the publication of The Origin of Species - A hard book to read. I like to show my students the fossils still in the rocks. #Science #STEM




Red Cabbage Indicator

 Its that time of year to cut up the red cabbage and make red cabbage indicator. Fun but smelly.

Blend a leaf of red cabbage with 100 ml distilled water. Filter (cheese cloth recommended). The resulting solution displays pretty much a full range of colours from pH 1 to14. Some people recommend boiling the cabbage but it is not necessary 

#Science #STEM





Doppler Rocket

Demonstrating the Doppler effect with the @pascoscientific Doppler Rocket: As the rocket moves away, students can hear the pitch drop (red s...