-
Use cobalt chloride as a humidity detector to predict the possibility of rain
By BookStore on September 21, 20151Humidity is often seen as an indication of the likelihood of rain occurring, and this is usually measured with...
-
Test and compare the protein content in various everyday foods
By BookStore on September 21, 2015Meat and dairy products are foods which are rich in protein. In this science experiment, test for proteins in...
-
Use red cabbage as an indicator to test if a substance is an acid or base
By BookStore on September 21, 2015Acids and bases are opposites and cancel each other out or 'neutralizes' when mixed together. 'Litmus' paper is an...
-
Use chromatography to predict the ‘fall’ colour of a green leaf tree
By BookStore on September 21, 2015In a process called 'chromatography', scientists can separate the individual parts of a mixture so that each one can...
-
Use iodine to test for the presence of starch in foods
By BookStore on September 21, 2015When starch is combined with hot water it breaks up into a kind of starch/sugar molecule called 'dextrin'. When...
-
Study how temperature affect the stretch of an elastic band
By BookStore on September 21, 2015'Polymers' are compounds made of very long chains of molecules which often have 'plastic' or 'rubber' properties. An elastic...
-
Extract the starch from raw potatoes and break it up into sugar
By BookStore on September 21, 2015When starch is combined with hot water, it breaks up into a kind of sugar molecule called 'dextrin'. ...
-
Drawing colours from black ink using basic ‘chromatography’
By BookStore on September 18, 2015Various colours of ink can be mixed together to form new ink colours and this is often used to...
-
Make your own stalactites
By BookStore on September 18, 2015Stalactites form on the roof of a cave, whereas stalagmites form on the floor. When the water drips, it...
-
Learn why some liquids do not mix with each other
By BookStore on September 18, 2015Not all liquids can be mixed together to form one new liquid substance. If more than one liquid cannot...