class into five groups with a leader who takes responsibility for
monitoring the experiments. Each group is given materials needed.
place the cotton wool on saucers as follows:
Group 1 moistens the cotton wool with water
Group 2 soaks the cotton wool in oil
Group 3 places dry cotton wool on the saucer
Groups 4&5 fills glass jars with H2O.
Group 6 place dry cotton wool on saucer and put in school freezer
is given instruction on the use of a digital camera and images are
taken at each stage of the experiment. The groups place their seeds
on pre-prepared saucers as outlined above.
mix water and blue dye in the glass jars and then place celery stalks
into each jar.
recorded in the students' science copies and a "Findings Chart"
Cotton Wool with H2O
|Cotton Wool with Oil
Dry Cotton Wool
Cotton Wool in Freezer
Shoots begin to appear
||Seeds turn brown
||Cotton wool freezes
Cress seeds begin to grow towards light
Cotton wool and seeds freeze
are placed on the nature table or in the freezer.
The children complete recording their findings in their science
is returned to the computer room and the images printed.
The "Findings Chart" is filled in after 3,5,days.