SCIENCE FAIR

My question:

Does liquid refract a laser from a laser pointer?

My Hypothesis:

If you shine a laser from a laser pointer into clear liquids(water) then it will refract but if you shine the laser into denser liquids it will not refract.

MATERIALS/VARIABLES

• Clear glass
• Laser pointer
• Book (Bible)
• Two pieces of paper for refracting marks
• Variables: diet coke, milk, water, juice, 7-up

PROCEDURE

• Put liquid in glass
• Shine laser into glass facing straight ahead
• Record what liquid refracts the laser
• Change the liquid
• Repeat

DISTANCE OF REFRACTION

DATA FOR THE GRAPH

• Juice: refracted 2.1cm from base point
• Water: refracted 1.9cm from base point
• 7-up: refracted 2.1cm from base point
• Milk: the laser did not go through the milk
• Diet Coke: refracted 2cm from base point

Background Research:

I found that the other people who did the experiment got results of the laser refracting in clear liquids like water.

Conclusion:

My hypothesis was right. The laser did refract through the liquid.