Sunday, 8 July 2012

Scientific Investigation stage 4 part 1 (gathering data)

Stage 4: Actual Experiment


Aim of experiment: To find out how bright light and the lack of light affects he growth of mealworms.


Hypothesis: The speed of growth of the mealworms kept in the dark will be greater than those in the bright light.


Materials: 4 mealworms, a container with holes, black cardboard, laser pointer/ handheld torch, food for mealworms in the container


Procedure:
  1. Place a cardboard barrier (that is black to ensure no light from the other side passes through) between the 4 mealworms such that 2 are on each side and the container is divided equally.
  2. Place a handheld torch towards the left side of the container. Label this side A.
  3. Cover up the right side with black paper on the outside of the container and try your best not to let light in. Label this side B.
  4. Watch the growth of the mealworms over a period of 5 days or until they turn into a beetle, whichever shorter.
  5. Record observations.
 Picture of the set-up:





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