Tuesday, 2 July 2013

Generating Research Questions

Name Question Independent Variable Dependent Variable Controlled Variables Hypothesis
Jie HanHow salty does the sea have to be for an egg to float? Amount of salt Whether the egg floats
  • Type of egg
  • Type of water
  • Type of salt
  • Temperature
  • Amount of water
If I increase the amount of alt in the water, the egg will float.
Odelia How the strength of a magnet varies with temperature? Temperature of the magnet Number of paper clips that the magnets attract
  • Type of paperclips
  • Same location
  • Size of magnet
  • Type of magnet
This magnet in boiling water will attract the most paperclips.
Tiffany How does the concentration of ethylene effect the photoluminescence of ethylene-gassed bananas under UV light? Concentration of ethylene The brightness of the banana
  • Same kind of banana
  • Exposure to UV light
  • Type of banana
  • Same amount of background lighting
The banana with the highest concentration of ethylene will be the brightest.

Monday, 1 July 2013

Essential Questions

What is science?
Science is the attempt to understand the universe through observations.

Scientific methods:
We have to form a question or a topic. (what do you want to find out?) Then, researching on that topic and forming a hypothesis. After that, we can start experimenting and analysing results. From the results, we can conclude our findings and compare it to our hypothesis.