Hard Disks

 What is the capacity of a hard disk? Years ago, 5- 10 MB was fantastic, a few years ago, a gigabyte disk was a dream, now Terabytes are standard. What will be the average in a few years? Will the hard disk have gone and be all solid state in just a few years, gone like the CD, DVD and Floppy disk?

Oil and Water

 Separating oil and water with a separating funnel? Easy. First I asked students to separate mixtures— They came up with tweezers for salt (briefly), syringing oil from water (messy). Lesson ended with laughter and learning.

A smartcarts eye view

 This is a @pascoscientific Smartcart's eye view of the track as the cart hurtles down it, sending information to Capstone so that the student can immediately take away with them the accurate data plot of the acceleration down the track.

Practice

 

With the Exams so near now, all there is time for is Practice, Practice, Practice

Ethanol Fuel Cell

 Using an ethanol fuel cell to power led lights and a fan. Fuel cells can be of several different types and comparing them gives the students some idea of how they could be used in the real world.

ATP

What makes ATP, ADP, and AMP so valuable? They are used in DNA and RNA to store and release energy and as signals inside cells. Each day, we recycle kg of these to keep us alive.
 

Iron Ore Extraction

 Very small-scale extraction of ores. On a wooden spill with iron oxide Fe(III)O and some Sodium Carbonate, and place in a Bunsen Burner. The iron oxide is not magnetic, but the iron produced at the end is magnetic, and the filings can be collected and moved by a magnet.