Sunday, 18 August 2013

The Science of art...

WALT : carry out an investigation to compare and contrast crayon and chalk as media for art.


How does chalk leave a mark?

  • You rub the chalk onto the paper and some of the powder from the chalk presses into the paper and makes a mark (Kate/Jaiden)
  • The stick of chalk gets smaller as you draw because some is left behind on the paper (Katelyn)
  • I think the chalk has has dried paint in it to make the colour (Thomas)

Is it the same as a crayon?

  • The crayon leaves a mark in the same way.

Compare and contrast chalk and crayon


  • Chalk is dusty and powdery
  • Both can leave marks on your hand (Thomas)
  • You can get crayon scrapings and rub them on the paper (Leo)
  • Crayons are made out of wax and they are not powdery (Kate)
  • The crayon leaves a brighter mark (Nikitah)...it leaves more colour
  • You can change the marks to create different  effects, like shadows, by using the tip or the side of the chalk (Rileigh-Kaye)
  • To create different effects with the crayon you need to press soft or hard or go over the line heaps of times. (Chalotte and Ella)
  • It is very difficult to mix crayon to make different colours (Katelyn)
  • You can mix chalk colours when you smudge it (Nikitah)

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