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Online resources
Online resources
Here are some games, quizzes, information and videos for you to look at:
Here are some games, quizzes, information and videos for you to look at:
vocabulary
vocabulary
By the end of the topic you should know these key words:
By the end of the topic you should know these key words:
light rays
shadow
light source
reflector
Sun
opaque
reflect
transparent
translucent
straight
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