All Investigation articles – Page 11

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Move an oxo cube at great speed

Make a reaction that creates CO₂, and watch as it propels a stock cube faster than any Oxo has travelled before. Includes kit list and safety instructions.
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Liquid and solid water; the growth of ice crystals

On a cold clear night, the Earth loses heat by radiation. How does a natural pond form ice through the night? Includes kit list and safety instructions.
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Lifting an egg by a thread

Create a strong cellulose thread and lift and egg. Includes kit list and safety instructions.
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The candle in the bell jar

How does oxygen, in a sealed container, react when exposed to fire? Find out with this experiment. Includes kit list and safety instructions.
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From milk to curds and whey - which enzyme?

An experiment, and extension, into enzymes and how they work in dairy products. Includes kit list and safety instructions.
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Finding the ‘rate expression’ for the reaction between iodine and tin

Explore rate reaction between two substances, and design an experiment to measure it. Includes kit list and safety instructions.
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Cool it | In search of more solutions | 14–16 years

Devise a method of reducing the temperature of water to 6.5°C using citric acid and bicarbonate of soda.
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Blanching - what is the most effective method?

Explore enzymes and catalysts in this experiment into fresh food preservation. Includes kit list and safety instructions.
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As sweet as? Detecting aspartame in a table-top sweetener

Use hydrolysis and chromatography to find aspartame in your table-top sweetener. Includes kit list and safety instructions.
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After meal puzzle

Use ingenuity and science to solve the riddle of lifting ice with string. Includes kit list and safety instructions.
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A transient red colour: the aqueous chemistry between iron (III) ions and sulfur oxoanions

An exploration into bonding in sulphur oxoanions, and redox reactions. Contains kit list and safety instructions.
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Folding @home - Fighting disease with citizen science

2014-07-03T13:24:00Z

Joined forces to donate our unused computer power to help uncover the mysteries of protein folding and fight diseases
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Feynman's flowers - Nano scale citizen science.

By taking part in Feynman’s flowers by crowdcrafting: You could help translate thousands of STM images of molecules for their magnetic properties.
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Solar cells and circuits

In association with The Solar Spark at the University of Edinburgh

Explore how to set up an electrical circuit containing solar cells and how connecting them in different ways will produce different results.
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Fatty acids in food supplements

A resource involving the investigation of the chemical composition of some food supplements that contain omega-3 and omega-6 fatty acids.
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Which fuel is better? | 11-16 years

Find out more about combustion rates, and how to use different fuels to boil water in a pinch. Includes kit list and safety instructions.
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Which bleach is the best buy?

Which bleach is best? By investigating this question, learners will discover more about redox reactions. Includes kit list and safety instruction.
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The ups and downs of chemistry

Encourage learners to explore solubility and density in this experiment. Includes kit list and safety instructions.
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The cooking an egg using least energy challenge

Science and food come together in this experiment to explore energy and insulation. Includes kit list and safety instructions.
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The heavy lift cup challenge

Use household items to discover how to lift heavy objects with a carbon dioxide reaction. Includes kit list and safety instructions.