This week friends continued to learn about properties of the light.
Friends learn that light travels in straight lines and it goes everywhere; it goes through things that are transparent. Transparent means clear or see through. Such things like glass, window, water, even some plastic are transparent. The light could be blocked by opaque things. Walls, doors, blocks, books, people are opaque. When light is blocked by an opaque object it stops. An opaque object forms a shadow.
Friends learned that position of the shadow depends on position of the sun. If sun is in front of us, shadow is behind. If sun is behind us, shadow is in front.
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