1) Some objects block light. Trees block light. You block light. The place where light does not reach is dark. A shadow is a dark shape that forms when an object blocks light. Shadows form wherever objects block light. Where do shadows form? a) Where something blocks light. b) Where there is no light at all. c) Where nothing can block light. 2) The dinosaurs are blocking light. You can see their shadows. The dinosaurs are different shapes. So, their shadows are different shapes, too. A shadow is shaped like the object that makes the shadow. What shape is a shadow?  a) The same shape as the object that blocks light.. b) A different shape from the object that blocks light. 3) Which object made this shadow? a) b) c) 4) Have you ever made shadows on the wall? To make a shadow, you need light and an object to block the light. Your hand blocks the light, so a shadow appears on the wall. The shape of the shadow is like the shape you make with your hand. Can you use your hand to make a shadow? a) no b) yes 5) What do you think will happen if you move your hand closer to the wall? Will it be smaller or larger? You can test your prediction. Move closer. Your shadow is smaller and darker. Move farther away. Your shadow is larger, but it is not as dark. Which picture is smaller and darker? a) b) 6) This person used their hands to block light. Which shadow did they make? a) b) c) 7) A tree blocks the sun's light. If the sun is low in the sky, the shadow is long. If the sun is high in the sky, the shadow is short. Shadows made by the sun change length during the day. Do shadows made by the sun change length during the day? a) Yes b) No 8) You can predict where a shadow will be. If the sun is behind you, your shadow will be in front of you. If you are facing the sun, your shadow will be behind you. Where will your shadow be if sunlight is behind you? a) your shadow will be behind you. b) Your shadow will be in front of you. 9) Look at the girl in the photograph. Where is the sun? a) behind her b) in front of her 10) Lesson Summary. Shadows form when an object blocks light. The shadow may be big or small, long or short. The size of a shadow made by the sun changes during the day. How do shadows form? a) Shadows form when something blocks light. b) Shadows form when nothing blocks light. 11) Which animal makes the biggest shadow? a) b) c) d)

TCI Science Gr1: U2-L3

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