To test how light rays work
Aim:
To come up with an experiment to make a rainbow.
Prediction:
I believe that this experimentwill work however only ifthe sun is visible as we needthe sun's rays to refract of thewater in our glasses. I think thisbecause I usually see rainbowsin sunlight.I believe we need this to
experiment to make a
rainbow.
Equipment:
- A glass
- Some water
- Paper
- (proper) Sunlight
Fair Test:
To make this a fair experiment
we kept : the amount of water,
the glass as well as the paper
the same however we changed
: the sun because it changed
positions ; that isn't anything
to make this test unfair however.
Method:
First we poured some water into the cup and came back to our work-station.
Then we had one person hold the cup up to the sun, which is the main reason we split-up into teams, this was a multi-task activity and we needed some extra hands consequently we did just that.
Finally we held the paper down and this is were the unfortunate part comes, we didn't get a rainbow as the sun was hiding behind the shadows of the cloud despite that however we got a small rainbow with the 7 colors after placing it at a specific angle and BANG! We got our self a rainbow henceforth we concluded it as an average experiment.
Results
We saw a rainbow on the bottom of the glass after we held it up at a VERY specific angle furthermore this was probably because the sun was covered in clouds like guards blocking us from it. It was still plausible and there's a time for everything.
Conclusion:
I'm concluding that light travels in a straight line at
299,792,458 meters per second. But when it hits water
or any kind of liquid it refracts if and starts bending in different direction thus creating a rainbow.
Experiment performed by
Jan Wrobel