April 2022

Changing Colours Of Celery (Chemistry Experiments)

Change the colour of celery leaves in this simple experiment. Things Required:1 stalk of fresh celery with leavesGreen food colouring1 clear drinking glass Directions:Fill the glass about one-quarter full with water. Make a dark green solution by adding food colouring to the water. Cut across the bottom end of the celery stalk with a knife. […]

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Mixing All Up (Chemistry Experiments)

Chemists often talk about solutions and suspensions, and also emulsions and mixtures. In a solution, one substance is thoroughly dissolved in another (salt and water). In a suspension, one substance gets mixed throughout the other, but is not dissolved (soil and water).In an emulsion, one liquid “floats” in another, but is not dissolved. The spread

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Solutions And Suspensions (Chemistry Experiments)

Chemists study suspensions and solutions. What are they all about? Try this simple experiment and find out. Things Required:2 large wide-mouth jars, half-filled with water2 tablespoonfuls of salt2 tablespoonfuls of soilA hand lensSpoon Directions:Add the soil to one jar of water, the salt to the other. Stir both. Look through your hand lens at both

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Vanished? Where? (Chemistry Experiments)

This experiment will explain that there are pockets of space between water molecules. Things Required:Measuring jar (see experiment How Much? for instructions)1 cup of rubbing alcohol7 cups of waterMeasuring cupBlue colouring Directions:Add five or six drops of food colouring to the water to make the water easier to see. Pour the coloured water into the

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