Straight - Light travels in a __________ line., Source - The sun is a __________ of light., Light - __________ is a form of energy that helps us see., Energy - Light is a type of __________., Transparent - A __________ object lets light pass through clearly., Translucent - A __________ object lets some light pass through., Opaque - An __________ object does not let light pass through., Shadow - A __________ is formed when light is blocked., Reflect  - A mirror can __________ light.,

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