Bunsen Burner Intro Lab
WRITE
THIS
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QUESTION: How does adding energy over time affect the temperature
and phase of a beaker of liquid water?
MATERIALS:
DO THIS
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ring stand
wire gauze
400 mL beaker
striker
Bunsen burner
thermometer
200 mL water
thermometer clamp
ruler
PROCEDURE:
1.
Read through this procedure, then create a data table that will hold
all of the data.
2.
Set up the Bunsen burner, ring stand, and wire gauze. Adjust the ring
so it is 8 -12 cm above the top of the Bunsen burner. DO NOT LIGHT
THE BUNSEN BURNER YET.
3.
Put 200 mL of cold water in a 400 mL beaker and place it on the ring
stand.
4.
Hang thermometer in the clamp so that the bottom of the
thermometer is in the middle of the water and so you can easily read
the temperature.
5.
Wait for the thermometer to stop changing, then the recorder should
record the temperature of the water at Time = 0 min.
6.
Wait for the class to be ready, then the pyrotechnician will follow Ms.
Goin’s directions and light the Bunsen burner and the timer should
start timing.
7.
The recorder should record the temperature EVERY MINUTE until the
water boils.
8.
Take TWO MORE measurements after the water boils.
9.
The pyrotechnician should turn off the Bunsen Burner
10.
Unhook Bunsen burner and thermometer, but leave the beaker on the
ring stand - it will be hot. Put all other materials back in the
materials box.
11.
The recorder should share data with the other lab members. Graph
the data on a separate paper and attach it to this lab.
WRITE THIS
QUESTIONS:
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ANSWER
THESE
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1. What were the variables in this lab?
VARIABLES:
Manipulated Variable:
Responding Variable:
Controlled Variables:
2. What are two ways to turn the Bunsen burner off?
Please use
complete
sentences
3. List three reasons why you should never take your eyes off the
Bunsen burner or walk away from it?
4. What was the temperature of YOUR water when it boiled?
5. What is the ACTUAL temperature of boiling water in °C?
6. What is the name and symbol for the scale we use in the U.S. to
measure temperature?
7. What is the temperature of boiling water in our scale?
8. List three reasons your temperature could have (and probably did)
vary from the “real” temperature of boiling water.