Doodle Science February 2011

Circulated to schools, organisations and individuals - covering primary science and related bits and bobs.


So what is it?

Could it be a star taken with some new powerful telescope?
A planet seen from low orbit by a new exploratory probe?
On a different tack, how about a strange and wonderful newly discovered octopus from the deep dark sea, unknown to science?
OK fair enough, it is an orange.
I took this using a fairly cheap USB microscope and I hardly had to play with the colours at all.
My point is that just like stars are huge but look so small because they are so very far away, little things can look huge or new and exciting when looked at from close up.
It also brings me to a suggestion, have a look at things using one of these microscopes or even a web cam, many of these can work as microscopes if you play with the focus a little.
Then you can explore the micro world.
One word of warning : quite possibly the most disgusting thing to look at is not a spiders face or a moulds slime
but your fingernails.
Truly astounding how horrendous they can look when magnified - and I had just washed mine.
Something to try.
Making Sherbet
This is pretty easy, you will need two teaspoons of icing sugar, one teaspoon of dry citric acid crystals and half a teaspoon of baking powder.
Mix these together and taste.
The flavor will vary with the ratios of the ingredients so there is plenty of scope for experimentation.
The way it works is that the sugar makes it sweet, the citric acid makes it lemony and the baking powder makes it fizzy.
Baking powder is composed of sodium hydrogen carbonate that reacts with the other ingredient in it tartaric acid when they get wet and give off carbon dioxide.
Health and safety
Make sure nobody is allergic to the ingredients, do not each too much and make sure to brush teeth after eating sugary foods.
A Web site well worth a visit
Dark Roasted Blend's Balanced Forces
Have a look at STFC you can get bits of the Moon!! (but you will have to give them back)