Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 437 · 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.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) the same stick (b) the same spot (c) shadow length (d) the time of day
2. 2.🧺 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 straight stick (d) a magnet
3. 3.🛟 While watching shadows outdoors, what must you never do? (a) look straight at the Sun (b) wear a cap (c) sit in the shade (d) mark with chalk
4. 4.🔦 Is butter paper opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
5. 5.🔦 Is tissue paper opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
6. 6.True or false: a steel plate is translucent. (a) False (b) True
7. 7.⚖️ 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
8. 8.📘 Why does a shadow form? (a) light bends round it (b) the ground is dark (c) the object is cold (d) an object blocks light
9. 9.True or false: a sunny open place is needed for the shadow clock. (a) True (b) False
10. 10.🧺 Do we need a magnet for the shadow clock? (a) needed (b) not needed
11. 11.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is kept the same? (a) the same stick (b) shadow length (c) the time of day
12. 12.🧺 Do we need turmeric powder for the shadow clock? (a) not needed (b) needed
13. 13.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a mirror (b) a clock to check (c) a straight stick (d) a sunny open place
14. 14.True or false: yeast is needed for the shadow clock. (a) True (b) False
15. 15.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) a straight stick (c) chalk to mark shadows (d) a battery cell
16. 16.🔦 Which of these is transparent? (a) clear plastic film (b) a steel plate (c) tissue paper (d) butter paper
17. 17.True or false: a sunny open place is not needed for the shadow clock. (a) False (b) True
18. 18.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the time of day”? (a) we measure it (b) we change it (c) we keep it the same
19. 19.True or false: a straight stick is needed for the shadow clock. (a) True (b) False
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 stick kept upright (b) the same spot (c) the same stick (d) the time of day
21. 21.🔍 Which is the odd one out? (a) frosted glass (b) clean water (c) butter paper (d) tissue paper
22. 22.🔦 Which of these is opaque? (a) a book (b) frosted glass (c) oily paper (d) butter paper
23. 23.⚖️ 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 measure it (c) we keep it the same
24. 24.🌞 When is a stick’s shadow the shortest? (a) at night (b) late evening (c) around noon (d) early morning
25. 25.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) round (b) missing (c) long (d) short
26. 26.🧺 Do we need a clock to check for the shadow clock? (a) not needed (b) needed
27. 27.True or false: clear plastic film is opaque. (a) True (b) False
28. 28.True or false: chalk to mark shadows is needed for the shadow clock. (a) True (b) False
29. 29.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) bigger (b) coloured (c) brighter (d) smaller
30. 30.True or false: clear plastic film is transparent. (a) False (b) True
31. 31.🛟 What should you wear for a long time in the hot sun? (a) a cap or hat (b) nothing on your head (c) a raincoat (d) a woollen sweater
32. 32.⚖️ 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 keep it the same (c) we change it
33. 33.🔍 Which is the odd one out? (a) your hand (b) butter paper (c) frosted glass (d) tissue paper
34. 34.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the time of day is kept the same. (a) True (b) False
35. 35.🔦 Is a book opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
36. 36.True or false: a magnet is not needed for the shadow clock. (a) True (b) False
37. 37.🧺 Which of these is not needed for the shadow clock? (a) a magnet (b) a straight stick (c) chalk to mark shadows (d) a sunny open place
38. 38.🔦 Is oily paper opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
39. 39.🔍 Which is the odd one out? (a) a brick (b) your hand (c) frosted glass (d) a wooden board
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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