Title: Candle Lab

1
Title Candle Lab

• A Practice in Observations

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Candle Lab

• Purpose To practice observational skills and
  writing observations.
• Hypothesis If a lit candle (that is surrounded
  by water) is related to the gases in the
  atmosphere, then when the candle is covered by an
  e-flask I think _(fill in what you think will
  happen)__ will happen because______________.

3
Candle Lab

• Materials See drawn diagram on white board.
• Procedure
• Put on goggles
• Light candle and drop some wax into dish to help
  support the candle.
• Blow out candle and set into soft wax.
• Carefully fill water dish approximately half way
  with water.
• Re-light candle and observe for about 30 seconds.
• Using the e-flask cover the candle and continue
  to observe.

4
Data Observations

• Create a T-chart that has two columns, one for
  Quantitative Observations one column for
  Qualitative Observations
• Come up with a of minimum 20 clear observations
  from this lab activity! (20 MINIMUM!)
• Remember observations are statements of FACTS
  (No inferences!)

5
Analysis Questions(write out the questions and
the answers)

• Was there anything that happened that you did not
  expect?
• Why did the flame go out?
• Three things are needed for the candle to burn.
  What are those three things?
• What happened to the gas inside the e-flask?
• Why did the water level inside the flask change?

6
CONCLUSION

• Write a conclusion in paragraph form that
  addresses these three items
• Refer back to your predicted hypothesis and state
  whether your hypothesis was fully supported, not
  supported or partially supported BASED ON YOUR
  OBSERVATIONS!
• Summarize in a sentence or two what relationship
  exists between the gases in the atmosphere (in
  the room) and a flaming/burning candle.
• Explain why there was a change in the candle,
  water, flame system when the candle was sealed
  off from the atmosphere (the room).