Experiment on Lightbulbs' Ability to Melt Chocolate
How long does
it take certain
lightbulbs to
melt
chocolate?
5
th
and 6
th
Class, Naul National
School
Predictions
•
We predicted that the
stronger light would melt the
chocolate the quickest.
•
We decided for a fair trial
that we would need to keep
conditions the same for
each light bulb. This meant
using the same brand of
chocolate and the same
plate.
Preparation
•
We collected all the
materials we would need
•
We got an old lamp,
lightbulbs in different
strengths, cooking
chocolate, plate,
thermometer and a
stopwatch.
•
We used pegs to balance
the plate on the lamp.
Method
•
Insert chosen lightbulb into
lamp
•
Carefully position plate over
the lamp
•
Place chocolate in centre of
plate
•
Turn the lamp and timer on at
the same time
•
Record the results
•
Repeat the process for each
bulb individually
Results
Observations
•
We observed that the 100W bulb
did a better job of melting the
chocolate than the 60W bulb and
the 40W bulb
•
We decided to try two old filament
bulbs. We found that these melted
the chocolate much quicker than
the newer bulbs
Conclusion
•
We concluded that the higher the wattage
of the bulb, the greater the chance of it
melting the chocolate.
•
We also decided that the older bulbs were
far superior for melting chocolate than the
newer energy saver bulbs.
•
We noted that the older bulbs would need a
lot more electricity to power because they
not only emit light, but they also emit a great
deal of heat. This means that they would not
be as good for the environment as the newer
energy saving bulbs.
A group of students at Naul National School conducted an experiment to determine how different lightbulbs affect the melting of chocolate. They found that higher wattage bulbs melted the chocolate quicker, with older filament bulbs outperforming newer energy-saving ones. The study concluded that higher wattage bulbs emitted more heat, aiding in melting the chocolate faster at the expense of higher energy consumption.
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Presentation Transcript
How long does it take certain lightbulbs to melt chocolate? 5thand 6thClass, Naul National School
Predictions We predicted that the stronger light would melt the chocolate the quickest. We decided for a fair trial that we would need to keep conditions the same for each light bulb. This meant using the same brand of chocolate and the same plate.
Preparation We collected all the materials we would need We got an old lamp, lightbulbs in different strengths, cooking chocolate, plate, thermometer and a stopwatch. We used pegs to balance the plate on the lamp.
Method Insert chosen lightbulb into lamp Carefully position plate over the lamp Place chocolate in centre of plate Turn the lamp and timer on at the same time Record the results Repeat the process for each bulb individually
Results Bulb Time first sign of melting 1 hour on the stopwatch 1 hour on the stopwatch 1 hour on the stopwatch 15 minutes 15 minutes Temperature on thermometer 27 C Final observation Temperature on thermometer 30 C 100W 1 hour 30 minutes 1 hour 30 minutes 1 hour 30 minutes 30 minutes 30 minutes 60W 21.5 C 25 C 40W 21.3 C 21.8 C 60W (old style) 40W (old style) 36.5 C 34.7 C 40.1 C 39.8 C
Observations We observed that the 100W bulb did a better job of melting the chocolate than the 60W bulb and the 40W bulb We decided to try two old filament bulbs. We found that these melted the chocolate much quicker than the newer bulbs
Conclusion We concluded that the higher the wattage of the bulb, the greater the chance of it melting the chocolate. We also decided that the older bulbs were far superior for melting chocolate than the newer energy saver bulbs. We noted that the older bulbs would need a lot more electricity to power because they not only emit light, but they also emit a great deal of heat. This means that they would not be as good for the environment as the newer energy saving bulbs.
