Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 688 · 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.🛟 What should you wear for a long time in the hot sun? (a) a woollen sweater (b) a raincoat (c) nothing on your head (d) a cap or hat
2. 2.True or false: butter paper is translucent. (a) False (b) True
3. 3.🔍 Which is the odd one out? (a) clear plastic film (b) tissue paper (c) butter paper (d) frosted glass
4. 4.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the stick kept upright is kept the same. (a) True (b) False
5. 5.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) a magnet (c) chalk to mark shadows (d) a straight stick
6. 6.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same spot”? (a) we change it (b) we keep it the same (c) we measure it
7. 7.🧺 Which of these is needed for the shadow clock? (a) chalk to mark shadows (b) a magnet (c) a battery cell (d) turmeric powder
8. 8.🛟 While watching shadows outdoors, what must you never do? (a) sit in the shade (b) mark with chalk (c) wear a cap (d) look straight at the Sun
9. 9.🧺 Which of these is needed for the shadow clock? (a) a battery cell (b) a mirror (c) turmeric powder (d) a sunny open place
10. 10.🧺 Which of these is not needed for the shadow clock? (a) a clock to check (b) a magnet (c) a sunny open place (d) a straight stick
11. 11.🔍 Which is the odd one out? (a) a steel plate (b) a wooden board (c) frosted glass (d) a book
12. 12.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is kept the same. (a) True (b) False
13. 13.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) missing (b) short (c) long (d) round
14. 14.⚖️ 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) the stick kept upright (c) shadow length
15. 15.🔍 Which is the odd one out? (a) clear glass (b) a wooden board (c) a brick (d) your hand
16. 16.🔦 Is a wooden board opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
17. 17.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) turmeric powder (c) chalk to mark shadows (d) a straight stick
18. 18.True or false: air is transparent. (a) False (b) True
19. 19.🔦 Is clear plastic film opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
20. 20.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a sunny open place (c) a straight stick (d) a mirror
21. 21.🧺 Do we need turmeric powder for the shadow clock? (a) not needed (b) needed
22. 22.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the time of day”? (a) we keep it the same (b) we change it (c) we measure it
23. 23.🧺 Which of these is needed for the shadow clock? (a) a straight stick (b) a balloon (c) a magnet (d) turmeric powder
24. 24.True or false: butter paper is opaque. (a) True (b) False
25. 25.True or false: a mirror is needed for the shadow clock. (a) False (b) True
26. 26.📘 Why does a shadow form? (a) the object is cold (b) light bends round it (c) an object blocks light (d) the ground is dark
27. 27.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is the one thing we change. (a) True (b) False
28. 28.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) a straight stick (c) a balloon (d) a clock to check
29. 29.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same stick”? (a) we keep it the same (b) we change it (c) we measure it
30. 30.🔦 Is a brick opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
31. 31.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) north (b) up (c) east (d) west
32. 32.🔮 Predict: on a fully cloudy day, the sundial ___. (a) runs faster (b) works better (c) does not work well (d) shows two times
33. 33.True or false: yeast is needed for the shadow clock. (a) True (b) False
34. 34.True or false: clear glass is transparent. (a) True (b) False
35. 35.🌍 Why does the stick’s shadow move during the day? (a) the stick walks (b) the stick grows (c) the ground slides (d) Earth keeps spinning
36. 36.True or false: your hand is translucent. (a) True (b) False
37. 37.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) coloured (b) smaller (c) bigger (d) brighter
38. 38.🧺 Do we need a sunny open place for the shadow clock? (a) not needed (b) needed
39. 39.True or false: clear plastic film is translucent. (a) False (b) True
40. 40.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is the one thing we change? (a) the time of day (b) shadow length (c) the same stick (d) the same spot

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