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Varying Water Temperatures and Salinities and Their Effect on Refracting Light

Julia Heimark

1 Purpose

  • e purpose of this project is to investigate how altering the

temperatures and salinities of water aects water’s refractive index. Web research indicates that the more dense the uid, the higher the index of refraction. erefore the hypothesis was that hot water would have a lower refractive index than cold water, and that water of high salinity would have a greater refractive index than water of low salinity.

Silicon Caulking

Home Depot

$4

Laser

Home

$0

Sodium Chloride

Lab-Pro, Inc.

$20

Digital Scale

Friend

$0

Digital ermometer

Friend

$0

Tape Measure

Home

$0

Plastic Tubing

Walgreens

$10

Water

Home

$0

Beaker (measure 1 L)

Friend

$0

2 Equipment

Quantity

3 8 x 8 x 1 / 8 p l a s t i c squares and 1 1 2 x 1 2 x 1 / 8 plastic square

1 tube 1 450 g 1 1 1 2 15 L 1

Description

Origin

My Cost

Used to Make

Homemade

$6

Triangular Prism

  • is paper was written for Marc Allard’s Physics class in the spring

of 2010.

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