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George's Marvellous Medicine...
Transcript of George's Marvellous Medicine...
the lighter liquids (the vegetable oil and water) are
than the heavy liquids
(the washing up liquid and honey), so they float on top of the more dense layers. But why?! The term 'density' refers to the compactness of the molecules in a substance E.g. If you compare a rock and a ball that are the same size (they have equal volume), which is heavier? The rock is, because it has more mass.
The rock is denser than the ball as it has more molecules in it's volume than the ball Layer 4: vegetable oil (lightest!)
Layer 3: water
Layer 2: washing up liquid
Layer 1: honey (heaviest!) MARVELLOUS!! I hope you enjoyed this experiment! This experiment could be done with upper KS2 children if you are going into detail with scientific facts... but lower KS2 would enjoy it too! Honey Washing up liquid Water
(coloured red with food dye) Vegetable oil Drinking glass Baster Sc1 Scientific Enquiry:
Ideas and evidence 1a, 1b
Sc1 Investigative skills:
Obtaining evidence 2e
Considering evidence and evaluating 2j, 2k, 2l
Sc3 Materials and their properties:
Grouping materials 1a, 1e Link to National Curriculum Aim: To find out what happens when we put 4 ingredients that are different weights into the same glass Honey Washing up liquid Water Vegetable oil Heaviest Lightest Most dense Least dense The children might predict that the liquids will mix together to form a mixture, much like George's marvellous medicine... They could measure out each of the liquids so they all have exactly the same volume, for example, 50ml The children could go on to make this investigation a fair test after observing what happens... They could then measure out the liquids using scales just to make sure that they have different weights! By