Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 594 · 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.🔦 Is frosted glass opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
2. 2.🔮 Predict: on a fully cloudy day, the sundial ___. (a) does not work well (b) shows two times (c) works better (d) runs faster
3. 3.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) the stick kept upright (b) the time of day (c) shadow length (d) the same stick
4. 4.True or false: yeast is needed for the shadow clock. (a) True (b) False
5. 5.True or false: chalk to mark shadows is needed for the shadow clock. (a) False (b) True
6. 6.🧺 Which of these is needed for the shadow clock? (a) a magnet (b) turmeric powder (c) a balloon (d) a straight stick
7. 7.True or false: a straight stick is not needed for the shadow clock. (a) False (b) True
8. 8.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) smaller (b) brighter (c) bigger (d) coloured
9. 9.🔦 Which of these is opaque? (a) butter paper (b) air (c) tissue paper (d) a book
10. 10.🧺 Do we need a balloon for the shadow clock? (a) not needed (b) needed
11. 11.🧺 Do we need a magnet for the shadow clock? (a) needed (b) not needed
12. 12.True or false: turmeric powder is needed for the shadow clock. (a) True (b) False
13. 13.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) short (b) missing (c) round (d) long
14. 14.🧺 Which of these is needed for the shadow clock? (a) a clock to check (b) turmeric powder (c) a battery cell (d) a mirror
15. 15.True or false: a straight stick is needed for the shadow clock. (a) False (b) True
16. 16.🧺 Do we need chalk to mark shadows for the shadow clock? (a) needed (b) not needed
17. 17.🌍 Why does the stick’s shadow move during the day? (a) the stick walks (b) Earth keeps spinning (c) the stick grows (d) the ground slides
18. 18.🛟 While watching shadows outdoors, what must you never do? (a) mark with chalk (b) sit in the shade (c) look straight at the Sun (d) wear a cap
19. 19.🔦 Is your hand opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
20. 20.⚖️ 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 same stick (c) shadow length
21. 21.🔦 Is a brick opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
22. 22.True or false: a magnet is needed for the shadow clock. (a) False (b) True
23. 23.True or false: a sunny open place is not needed for the shadow clock. (a) False (b) True
24. 24.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a straight stick (c) chalk to mark shadows (d) yeast
25. 25.🧺 Do we need a mirror for the shadow clock? (a) needed (b) not needed
26. 26.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “shadow length”? (a) we change it (b) we keep it the same (c) we measure it
27. 27.🔍 Which is the odd one out? (a) your hand (b) clear plastic film (c) a steel plate (d) a book
28. 28.⚖️ 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) the stick kept upright (c) the same spot (d) the same stick
29. 29.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the stick kept upright is what we measure. (a) True (b) False
30. 30.🧺 Do we need a sunny open place for the shadow clock? (a) needed (b) not needed
31. 31.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same stick”? (a) we measure it (b) we keep it the same (c) we change it
32. 32.📘 Why does a shadow form? (a) the ground is dark (b) the object is cold (c) light bends round it (d) an object blocks light
33. 33.🧺 Which of these is needed for the shadow clock? (a) turmeric powder (b) chalk to mark shadows (c) a battery cell (d) yeast
34. 34.🧺 Which of these is not needed for the shadow clock? (a) a clock to check (b) a sunny open place (c) a balloon (d) a straight stick
35. 35.🌞 When is a stick’s shadow the shortest? (a) at night (b) early morning (c) around noon (d) late evening
36. 36.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a balloon (b) chalk to mark shadows (c) a clock to check (d) a straight stick
37. 37.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a magnet (b) chalk to mark shadows (c) a clock to check (d) a straight stick
38. 38.🔍 Which is the odd one out? (a) a brick (b) a book (c) air (d) your hand
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) True (b) False
40. 40.🛟 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

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