1. Write the word TRUE if the statement is correct or FALSE if it is not. Write your answers on the blanks. 1. Shadow is a dark area formed when straight light rays are blocked by opaque objects. 2. Shadows can be formed without light. 3. A shadow does not change throughout the day. 4. When the light strikes on opaque objects, they allow light to pass through and form shadows. 5. When the Sun is directly above the horizon, the light rays of the Sun strikes directly above the objects, so no visible shadow is seen on the ground. 6. When the Sun is low on the horizon, it produces shorter shadow. 7. When the Sun is high or nearly above the horizon, the sunlight strikes the ground at nearly a right angle so shorter shadows are formed. 8. The Sun does not affect the position and length of shadows. 9. The Sun changes in position and so do the shadows. 10. The changes in the position and length of shadows in the surroundings depend on the angle at which the sunlight strikes the object to the ground. 16. Light rays travel in a zigzag line. 17. When the light rays cannot pass through an object, there is a formation of shadow. 18. The shadow is shortest when the sun is high on the sky, 19. The shadow is longest when the sun is low on the sky, 20. The length and position of shadow will not change as the sun change its position.