Prezi

Present Remotely

Send the link below via email or IM

• Invited audience members will follow you as you navigate and present
• People invited to a presentation do not need a Prezi account
• This link expires 10 minutes after you close the presentation

Present offline on a PC or Mac.

• Embedded YouTube videos need an active Internet connection to play.
• Portable prezis are not editable.

Edit and present offline with Prezi Desktop

Do you really want to delete this prezi?

Neither you, nor the coeditors you shared it with will be able to recover it again.

You can change this under Settings & Account at any time.

Measuring Sugar Content of a Liquid with a Laser Pointer

This is the Experimental Expression of my Science Project.
by Spencer P. on 6 April 2011

Report abuse

Transcript of Measuring Sugar Content of a Liquid with a Laser Pointer

Measuring the Sugar Content of a Liquid
using a Laser Pointer Your sitting there
drinking your
sugary beverage. You think to yourself
"Could I measure the
amount of sugar in my
drink with a laser?" Has this ever happened? No!?!? Never?!?! Well, here's the answer anyway! You must be wondering,
"If I could use a laser to measure
the amount of sugar in my liquid, how would it be done?" Well! We would do this by measuring the liquid's index of refraction! "Spencer! What is an index of refraction?" I'm glad you asked! An index of refraction is the speed a
wave of light travels through the substance
instead of through a vacuum. Problem: "How fast does light travel through a vacuum?" 299,792,458 meters per second. Hypothesis: If I increase the percentage of sugar in the liquid,
then it's index of refraction will increase too.
Variables:
Dependant variable: liquid's IOR (index of refraction)
Independant variable: amount of sugar in the liquid "Spencer, what is the liquid?" Good question! The liquid is
Dihydrogen Monoxide(water). The results of this experiment only apply to Dihydrogen Monoxide! "What materials would we use to conduct the experiment?" Let's look at the list! Materials:
• (2) 1" × 3" glass microscope slides
• diamond scribe or glass cutter
• metric ruler
• roll of electrical tape
• epoxy cement (either 5-minute or 30-minute epoxy)
• toothpicks
• laser pointer
• cardboard
• roll of clear tape
• paper
• pencil
• modeling clay
• piece of string
• (30g) sugar
• (370ml) water