Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 616 · 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) a wooden board (c) a book (d) air
2. 2.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) a straight stick (c) chalk to mark shadows (d) a balloon
3. 3.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is the one thing we change? (a) the stick kept upright (b) the time of day (c) the same spot (d) the same stick
4. 4.🛟 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
5. 5.True or false: clear plastic film is transparent. (a) False (b) True
6. 6.📘 Why does a shadow form? (a) an object blocks light (b) the object is cold (c) light bends round it (d) the ground is dark
7. 7.🧺 Do we need chalk to mark shadows for the shadow clock? (a) not needed (b) needed
8. 8.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) round (b) missing (c) short (d) long
9. 9.🛟 While watching shadows outdoors, what must you never do? (a) look straight at the Sun (b) wear a cap (c) mark with chalk (d) sit in the shade
10. 10.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) the time of day (b) the same spot (c) the stick kept upright (d) shadow length
11. 11.True or false: a steel plate is transparent. (a) True (b) False
12. 12.🧺 Which of these is needed for the shadow clock? (a) a battery cell (b) yeast (c) a straight stick (d) a balloon
13. 13.🧺 Which of these is not needed for the shadow clock? (a) a magnet (b) a sunny open place (c) a clock to check (d) chalk to mark shadows
14. 14.🔍 Which is the odd one out? (a) clean water (b) butter paper (c) air (d) clear plastic film
15. 15.True or false: yeast is needed for the shadow clock. (a) True (b) False
16. 16.🔦 Is oily paper opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
17. 17.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is kept the same? (a) the time of day (b) shadow length (c) the same stick
18. 18.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) up (b) west (c) north (d) east
19. 19.🔍 Which is the odd one out? (a) tissue paper (b) oily paper (c) clear plastic film (d) butter paper
20. 20.🧺 Which of these is needed for the shadow clock? (a) a clock to check (b) turmeric powder (c) a magnet (d) a balloon
21. 21.🌞 When is a stick’s shadow the shortest? (a) at night (b) around noon (c) late evening (d) early morning
22. 22.🔦 Is a wooden board opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
23. 23.True or false: clean water is translucent. (a) False (b) True
24. 24.🧺 Do we need turmeric powder for the shadow clock? (a) not needed (b) needed
25. 25.⚖️ 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
26. 26.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) brighter (b) smaller (c) coloured (d) bigger
27. 27.True or false: a balloon is not needed for the shadow clock. (a) False (b) True
28. 28.🕰️ What is a sundial used for? (a) weighing things (b) telling the time (c) measuring rain (d) making rainbows
29. 29.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) a clock to check (c) a straight stick (d) a magnet
30. 30.True or false: tissue paper is translucent. (a) False (b) True
31. 31.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a clock to check (c) chalk to mark shadows (d) turmeric powder
32. 32.🔍 Which is the odd one out? (a) a book (b) a steel plate (c) frosted glass (d) a wooden board
33. 33.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) yeast (c) a sunny open place (d) a straight stick
34. 34.True or false: a book is opaque. (a) False (b) True
35. 35.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is kept the same? (a) shadow length (b) the time of day (c) the same spot
36. 36.🔦 Is frosted glass opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
37. 37.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a balloon (c) chalk to mark shadows (d) a sunny open place
38. 38.True or false: chalk to mark shadows is needed for the shadow clock. (a) True (b) False
39. 39.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same spot is what we measure. (a) True (b) False
40. 40.🧺 Which of these is not needed for the shadow clock? (a) yeast (b) a clock to check (c) a straight stick (d) chalk to mark shadows

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