Candle Lab Report

Topics: Hypothesis, Hydrocarbon, Scientific method Pages: 4 (915 words) Published: December 4, 2011
Experimenting with a Candle
Justin Nguyen
Mrs. Howley
Mod F

Purpose: the purpose is to learn how the process of a candle burning. The goals of this experiment are to practice in the art of observation, the art of questioning, and the development of a better understanding of this process. Hypothesis: through this experiment, we will learn how candle is working. Materials:

* Candle
* Note card
* Matches or butane lighter
* Aluminum foil
* 1L beaker
* Balance
I. Candle Observation
1. Attached the candle to a note card by using melted wax. 2. Observe the candle carefully. Record as many observations as you can. 3. After that, light the candle. Observe the candle when it’s burning for at least 5 minutes. Record. 4. Blow the candle out. Observe the candle until no more changes are taking place. Observation before burning:

+ white
+ the wick is black (got burned)
+smell fresh
Observation during burning:
+yellow on the very top of the wick, blue at the bottom
+ melting -> clear liquid
Observation after burning:
+ the wick turns into dark black
+ burn’s smell
+Liquid turns solid after leaving it for a while

* Why do candles had many kind of color?
* How many colors does a candle have?
* During burning why does the light have many different color? * After burning, the candles melted into a clear liquid, what is it? * What type of liquid is that?
* Why does it turn solid after it gets cool?
II. Experimenting with a Candle
Experiment 1:
Prediction: the wick will release when the candle is extinguished burn. Procedure:
1. Light the candle
2. Let it burns for about a minute
3. Light a match
4. Blow the candle out
5. Place the lit match about one inch above the wick in the path of the gas. Try again if there is nothing happened. If it does, see if the same thing happens if the lit math is held higher above...
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