Last lessonChromatography
Chromatography
chromatography paper
Chromatography
Origin line drawn in pencil with a ruler
Does not dissolve in water
about 2 cm
Chromatography
Four evenly spaced crosses drawn in pencil
Chromatography
Four small dots made with different felt tip pens
Chromatography
Dots must be above water level
Don’t slosh the water about!
Chromatographypencil
paper clip
Chromatography
Make sure you take it out before the water reaches
the top!
Another type of chromatogram
Homework
• Use at least 4 diagrams to show how to make a chromatogram. Can you also stick in the two chromatograms that you made?
• Due Friday 30th April
Today’s lesson - Who murdered Mr Scott?
The suspects
N CR
Today’s lesson
• Separating sand and salt
Filtration
Evaporation
Separating sand and salt
Can you stick the instructions in the
book and read carefully?
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