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Drawing colours from black ink using basic ‘chromatography’
By BookStore on September 18, 20150Various colours of ink can be mixed together to form new ink colours and this is often used to...
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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...
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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...
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Use turmeric and alcohol as an indicator to test if a substance is a base
By BookStore on September 18, 2015A mixture of turmeric and alcohol can be used as an 'indicator' to test if a substance is a...
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Use tea to test for the presence of iron in foods
By BookStore on September 18, 2015Iron can be found in many types of foods, particularly in red meats, leafy vegetables and some fruits. Test...
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Grow your own crystals along a piece of string
By BookStore on September 17, 2015When no more sugar can be dissolved in water, the sugar and water solution is 'saturated'. Crystallization takes place...
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Send secret messages to your friends with your own invisible ink
By BookStore on September 17, 2015In this science experiment, become a master of 'steganography' by making your own invisible ink from baking soda and...
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Study how heating food causes the chemicals in food to change
By BookStore on September 17, 2015Heating or grilling food causes many of the chemicals in food to change. These bio-chemical changes can cause the...
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Test if salt water is more dense than fresh water
By BookStore on September 17, 2015'Density' is a physical property that all matter possess and can be used to compare two substances that have...
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Use a magnet to test for the presence of iron in breakfast cereals
By BookStore on September 17, 2015Iron is a mineral essential for life. It is present in every living cell and is necessary for the...