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A demonstration of the trial and error method for making the right consistency of gunge. A fair test is conducted by changing only the amount of water each time and keeping everything else the same.
Science Clips Investigates
This clip is from:
Science Clips Investigates, Characteristics of Materials
First broadcast:
4 March 2008

Classroom Ideas

This clip could be used to enable children to understand fair testing. It could provide a fun stimulus to investigating materials and their properties. It could lead into the children investigating and making their own gunge.