Light and Shadows
Your student shoudl know and understand
• Commonly, light is produced from the sun, glowing, or burning objects.
• Some animals can also produce light through chemical reactions in their bodies.
• Light cannot pass through an opaque object or substance.
• When light passes the edges of an opaque object or substance, the areas of the material that the light cannot pass through cast a shadow of the object with the edges of the object as the margins.
• Commonly, light is produced from the sun, glowing, or burning objects.
• Some animals can also produce light through chemical reactions in their bodies.
• Light cannot pass through an opaque object or substance.
• When light passes the edges of an opaque object or substance, the areas of the material that the light cannot pass through cast a shadow of the object with the edges of the object as the margins.