Science Lab Report
By Fidelya Daphne and Ayla
Aim
To explore what happens when you use a
5c coin, a paper clip, wire, a steel pin and a
metal ruler as conductors to light up a light
bulb.
Hypothesis/ prediction:
 What happens when you use a 5 cent coin, a paper clip ,
wire , a steel pin and a metal ruler as conductors to light up a
light bulb.
 I predict that the light will be dim because of the conductors.
Materials:
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5 cent coin
Paper clip
Wire
Steel pin
Metal ruler
A battery box
A light bulb
Alligator clips.
Method:
 1.
First get your battery box and plug it in.
 2.
Then grab your materials and test them out individually
and record your results on a table.
 3.
Then connect the metal ruler to the battery box with a
wire and alligator clips.
 4.
Keep connecting all the materials until you have none
left but the light bulb must be at the end.
 5.
Turn battery box on and record results.
Observation:
Materials
5 cent coin
Dim/bright
Bright/ Dark
Paper clip
Wire
Bright
Bright
Steel Pin
Metal Ruler
Bright
Dim/bright
All objects
together
Bright
description
Dark and
bright
Bright and hot
Warm and
yellow
A bit bright
Dim, dark and
orange
Bright and
yellow
Observation:
 When we tested all the materials separately they all lit up, the
brightest one was the paper clip. The dimmest one was the 5
cent coin. We think the 5 cent coin was the dimmest because
it is not all made out of metal it has copper in it.
 When we tested all the materials by them selves and
altogether the brightest one was all the materials put
together.
Discussion:
 In our group we observed what happens when we use 5
different objects made out of metal to light up a light bulb
according to what type of metal. With our 5 different objects
we tested the objects individually and then we recorded the
results in a table. All the items lit up the light. They all lit up
because they were all made out of metal. Metals are good
conductors of electricity, because they have free electrons.
The free electrons act as charge carriers in the metal
structure, allowing electric current to flow through the metal.
Conclusion:
 Our aim was to explore what happens when you use a 5c coin,
a paper clip, wire, a steel pin and a metal ruler as conductors to
light up a light bulb. Our hypothesis was I predict that the light is
will be dim because of the conductors. It was disproved because
all the conductors put together made it very bright.
 We found out that metal is a good conductor of electricity
because there are free electrons that act as charge carriers in
the metal structure, allowing electric current to flow through the
piece of metal.
 Our experiment went good I wouldn’t change much about it
except I would like to try it out with different and more
conductors. I would like to test out other conductors such as
water or damp wood etc.
The End