Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 182 · 40 questions

What you do (Shadows point away from the Sun): 1. Stand the stick upright in the ground in an open sunny place. 2. Every hour, mark the tip of the shadow with chalk and write the time. 3. Measure the length of each shadow. 4. Wear a cap and never look straight at the Sun.

1. 1.🔍 Which is the odd one out? (a) your hand (b) clear plastic film (c) a steel plate (d) a book
2. 2.🧺 Do we need a balloon for the shadow clock? (a) not needed (b) needed
3. 3.🛟 What should you wear for a long time in the hot sun? (a) a raincoat (b) a woollen sweater (c) nothing on your head (d) a cap or hat
4. 4.True or false: tissue paper is translucent. (a) False (b) True
5. 5.🧺 Do we need a straight stick for the shadow clock? (a) needed (b) not needed
6. 6.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the stick kept upright”? (a) we measure it (b) we change it (c) we keep it the same
7. 7.🔍 Which is the odd one out? (a) clear glass (b) air (c) your hand (d) clear plastic film
8. 8.🔍 Which is the odd one out? (a) clean water (b) clear plastic film (c) a wooden board (d) clear glass
9. 9.📘 Why does a shadow form? (a) light bends round it (b) the ground is dark (c) an object blocks light (d) the object is cold
10. 10.🔦 Which of these is translucent? (a) clear plastic film (b) clear glass (c) butter paper (d) a steel plate
11. 11.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) a clock to check (c) a battery cell (d) a straight stick
12. 12.🧺 Which of these is needed for the shadow clock? (a) a magnet (b) a balloon (c) a clock to check (d) a battery cell
13. 13.🔦 Which of these is transparent? (a) oily paper (b) a steel plate (c) clean water (d) a book
14. 14.🧺 Which of these is not needed for the shadow clock? (a) a clock to check (b) a battery cell (c) a sunny open place (d) chalk to mark shadows
15. 15.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: shadow length is the one thing we change. (a) True (b) False
16. 16.🔦 Which of these is opaque? (a) butter paper (b) oily paper (c) a book (d) clear glass
17. 17.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) east (b) west (c) north (d) up
18. 18.True or false: a book is opaque. (a) True (b) False
19. 19.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “shadow length”? (a) we keep it the same (b) we change it (c) we measure it
20. 20.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is the one thing we change? (a) the same stick (b) the time of day (c) shadow length (d) the same spot
21. 21.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) chalk to mark shadows (c) a straight stick (d) turmeric powder
22. 22.🔦 Which of these is transparent? (a) clear glass (b) a book (c) a steel plate (d) your hand
23. 23.🔦 Is frosted glass opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
24. 24.True or false: clear glass is opaque. (a) True (b) False
25. 25.🌍 Why does the stick’s shadow move during the day? (a) the stick grows (b) Earth keeps spinning (c) the ground slides (d) the stick walks
26. 26.🔦 Is air opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
27. 27.🛟 While watching shadows outdoors, what must you never do? (a) mark with chalk (b) sit in the shade (c) wear a cap (d) look straight at the Sun
28. 28.True or false: a balloon is needed for the shadow clock. (a) True (b) False
29. 29.🔦 Is oily paper opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
30. 30.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same spot”? (a) we measure it (b) we change it (c) we keep it the same
31. 31.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) long (b) short (c) missing (d) round
32. 32.🔍 Which is the odd one out? (a) your hand (b) a book (c) butter paper (d) a steel plate
33. 33.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is what we measure. (a) True (b) False
34. 34.True or false: frosted glass is translucent. (a) False (b) True
35. 35.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) a clock to check (c) a straight stick (d) a mirror
36. 36.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same stick”? (a) we change it (b) we keep it the same (c) we measure it
37. 37.🔦 Is tissue paper opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
38. 38.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) brighter (b) coloured (c) bigger (d) smaller
39. 39.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a mirror (b) a clock to check (c) chalk to mark shadows (d) a sunny open place
40. 40.🔍 Which is the odd one out? (a) air (b) a steel plate (c) clean water (d) clear glass

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