Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 397 · 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? What do we do with “the same spot”? (a) we measure it (b) we keep it the same (c) we change it
2. 2.True or false: clear glass is transparent. (a) False (b) True
3. 3.🧺 Do we need a straight stick for the shadow clock? (a) needed (b) not needed
4. 4.⚖️ 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 stick kept upright (c) the same spot (d) the time of day
5. 5.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) missing (b) round (c) short (d) long
6. 6.🧺 Do we need a clock to check for the shadow clock? (a) needed (b) not needed
7. 7.🔦 Which of these is transparent? (a) a brick (b) your hand (c) a wooden board (d) air
8. 8.🧺 Which of these is needed for the shadow clock? (a) a mirror (b) a magnet (c) turmeric powder (d) a clock to check
9. 9.True or false: turmeric powder is needed for the shadow clock. (a) True (b) False
10. 10.🔦 Which of these is transparent? (a) butter paper (b) tissue paper (c) a wooden board (d) clean water
11. 11.⚖️ 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
12. 12.🧺 Do we need a sunny open place for the shadow clock? (a) needed (b) not needed
13. 13.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) a clock to check (c) chalk to mark shadows (d) a magnet
14. 14.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) a straight stick (c) turmeric powder (d) a clock to check
15. 15.🔍 Which is the odd one out? (a) a book (b) air (c) clear glass (d) clean water
16. 16.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) coloured (b) smaller (c) brighter (d) bigger
17. 17.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the stick kept upright”? (a) we keep it the same (b) we measure it (c) we change it
18. 18.🌞 When is a stick’s shadow the shortest? (a) around noon (b) late evening (c) early morning (d) at night
19. 19.True or false: chalk to mark shadows is needed for the shadow clock. (a) False (b) True
20. 20.⚖️ 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 stick kept upright (c) the same stick (d) shadow length
21. 21.🛟 While watching shadows outdoors, what must you never do? (a) wear a cap (b) mark with chalk (c) look straight at the Sun (d) sit in the shade
22. 22.🧺 Which of these is not needed for the shadow clock? (a) a mirror (b) chalk to mark shadows (c) a straight stick (d) a clock to check
23. 23.🔦 Which of these is opaque? (a) air (b) oily paper (c) clear plastic film (d) a book
24. 24.🛟 What should you wear for a long time in the hot sun? (a) a raincoat (b) a cap or hat (c) a woollen sweater (d) nothing on your head
25. 25.🔦 Which of these is translucent? (a) tissue paper (b) your hand (c) a steel plate (d) clear plastic film
26. 26.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “shadow length”? (a) we measure it (b) we keep it the same (c) we change it
27. 27.🔍 Which is the odd one out? (a) a wooden board (b) a brick (c) clear plastic film (d) a steel plate
28. 28.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) turmeric powder (b) a sunny open place (c) chalk to mark shadows (d) a clock to check
29. 29.True or false: a magnet is not needed for the shadow clock. (a) True (b) False
30. 30.True or false: a straight stick is not needed for the shadow clock. (a) True (b) False
31. 31.🔦 Is your hand opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
32. 32.🧺 Which of these is not needed for the shadow clock? (a) a clock to check (b) a straight stick (c) chalk to mark shadows (d) a balloon
33. 33.True or false: a sunny open place is not needed for the shadow clock. (a) False (b) True
34. 34.📘 Why does a shadow form? (a) light bends round it (b) the object is cold (c) the ground is dark (d) an object blocks light
35. 35.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) yeast (b) a clock to check (c) chalk to mark shadows (d) a straight stick
36. 36.🔦 Which of these is opaque? (a) air (b) clear plastic film (c) tissue paper (d) a steel plate
37. 37.⚖️ 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) False (b) True
38. 38.True or false: air is transparent. (a) True (b) False
39. 39.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the time of day is what we measure. (a) False (b) True
40. 40.🧺 Do we need turmeric powder for the shadow clock? (a) not needed (b) needed

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