Glow stick lab:
Objective: The purpose of this lab were to see if a change in energy in a glow stick (by taking away or adding heat) made a reaction or changed the apperance of the glow stick.
Hypothesis: I think that if the energy in the glow stick changes, so will the amount of light it produces. I think that hotter will be brighter and colder will be dimmer.
Procedure:
Step 1: Activate the glow stick by cracking it and monitor the color for 1 minute
Step 2: Put the glow stick into hot water and monitor the color after 5 minute
Step 3: Put the glow stick into hot water and monitor the color after 5 minute
Data: (Put this in a table)
Column one:
Reaction energy
Normal (Room temp)
Increased (Hot)
Decreased (Cold)
Column two:
Color/Reaction
Normal color
Brighter color/glow
Duller/dimmer glow stick
Conclusion:
In this experiment I tested whether a change in tempurature would effect a glow sticks color. My hypothesis was, yes. When it became hotter, it would glow brighter and when it was colder, it would be dimmer. To test my theory, I activated a glow stick ang left it at room tempurature for 1 minute. Then I put it in a cup of hot water for one minute and repeated in a cup of cold water. My hypothesis was correct. I think this happens because when atoms heat up they move quicker, creating more energy.
I hope this helps! I took an old lab I did a few years ago so it should be okay for your teacher.
