Alkali Metals Reactions

The Alkali metals are always a good start to Chemistry comparing their hardness, how fast they oxidise when exposed to air and of course their reactions with water. Lots of fun and lots of science Why are the metals stored under oil and why are they double stoppered?

 

Determining G

We went to determine G using a Lego ball drop experiment - 8.8 m/s2 and then via the @pascoscientific picket fence and lightgate. 9.81 m/s2 spot on on the second go.

 

Planning ahead

 I had a look at the new Blackmagic Camera coming out in October. I think it will be ideal for in front of the organ, so we will need a wide-angle lens for this so I decided to try out the Olympus 14-42 Lens

First Principles

Diving into differentiation from the first principles. Starting with the basics and then tackling more complex equations.

Centre of mass

 

Irregularly shaped objects and finding their centre of mass. Also fun with the broom. With this simple trick, it is easy.

Blood types

Year 9 students learn all about blood types and how the antigens work. Who is the universal donor and who is the universal recipient, using synthetic blood.

 

Disk boot speed

 What is the speed difference between booting from an M.2 drive, an SSD , a hybrid drive and a fast hard disk. The students set out to find out. The order did not surprise anyone but just how slow the fast hard disk was did.