How does light travel? - in straight lines, How are objects seen? - They give out or reflect light, How does light get into our eyes? - It travels directly or is reflected off objects, What must happen for a shadow to be the same shape as an object? - Light must travel in straight lines, What word mean only some light passes through? - Translucent, What word means all of the light can pass through? - Transparent, What word means that no light passes through? - Opaque, Which scientist is famous for splitting white light? - Isaac Newton,

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