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?