Investigating Light by Sally M. Walker
Author:Sally M. Walker
Language: eng
Format: epub
ISBN: 9781512475876
Publisher: Lerner Publishing Group
22
Light rays can bend when they pass from one kind
of matter into another. They bend because their speed
changes. The bending of light rays is called refraction.
You can see light rays refract. You will need half a glass
of water and a pencil or a pen.
YOU CAN
USE THESE
OBJECTS TO
EXPERIMENT
WITH
REFRACTION.
23
Refraction in Action
Put the pencil or the
pen into the glass.
Let it lean against
the side of the glass.
Hold the glass so the
top of the water is
level with your eyes.
Look at the pencil. It
appears to be bent!
Why?
Download
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