Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 672 · 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 raincoat (b) nothing on your head (c) a woollen sweater (d) a cap or hat
2. 2.🌞 When is a stick’s shadow the shortest? (a) at night (b) late evening (c) early morning (d) around noon
3. 3.True or false: butter paper is translucent. (a) True (b) False
4. 4.🔦 Which of these is opaque? (a) tissue paper (b) a wooden board (c) clear plastic film (d) air
5. 5.True or false: oily paper is opaque. (a) False (b) True
6. 6.🔦 Is clear plastic film opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
7. 7.🔦 Which of these is translucent? (a) air (b) tissue paper (c) a steel plate (d) a wooden board
8. 8.🔦 Is your hand opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
9. 9.🧺 Which of these is needed for the shadow clock? (a) chalk to mark shadows (b) a magnet (c) a battery cell (d) a mirror
10. 10.🧺 Which of these is needed for the shadow clock? (a) a mirror (b) turmeric powder (c) a sunny open place (d) yeast
11. 11.True or false: a sunny open place is not needed for the shadow clock. (a) True (b) False
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) False (b) True
13. 13.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) coloured (b) brighter (c) smaller (d) bigger
14. 14.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the stick kept upright”? (a) we change it (b) we keep it the same (c) we measure it
15. 15.True or false: clear plastic film is transparent. (a) True (b) False
16. 16.🛟 While watching shadows outdoors, what must you never do? (a) sit in the shade (b) mark with chalk (c) look straight at the Sun (d) wear a cap
17. 17.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the time of day”? (a) we change it (b) we measure it (c) we keep it the same
18. 18.🔍 Which is the odd one out? (a) air (b) tissue paper (c) clear glass (d) clear plastic film
19. 19.True or false: a straight stick is not 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 kept the same? (a) shadow length (b) the same stick (c) the time of day
21. 21.🔦 Which of these is opaque? (a) clear plastic film (b) butter paper (c) a steel plate (d) frosted glass
22. 22.True or false: butter paper is opaque. (a) False (b) True
23. 23.True or false: a balloon is not needed for the shadow clock. (a) True (b) False
24. 24.⚖️ 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 change it (c) we keep it the same
25. 25.⚖️ 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 measure it (c) we keep it the same
26. 26.True or false: tissue paper is translucent. (a) False (b) True
27. 27.🔦 Which of these is opaque? (a) butter paper (b) your hand (c) oily paper (d) frosted glass
28. 28.🧺 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 battery cell (d) chalk to mark shadows
29. 29.🧺 Which of these is needed for the shadow clock? (a) a balloon (b) a straight stick (c) a magnet (d) yeast
30. 30.📘 Why does a shadow form? (a) the object is cold (b) the ground is dark (c) light bends round it (d) an object blocks light
31. 31.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) turmeric powder (c) a clock to check (d) a sunny open place
32. 32.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: shadow length is what we measure. (a) True (b) False
33. 33.🕰️ What is a sundial used for? (a) telling the time (b) weighing things (c) making rainbows (d) measuring rain
34. 34.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) yeast (c) a straight stick (d) a sunny open place
35. 35.True or false: a steel plate is transparent. (a) True (b) False
36. 36.🧺 Do we need yeast for the shadow clock? (a) needed (b) not needed
37. 37.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same spot is kept the same. (a) True (b) False
38. 38.🧺 Do we need a sunny open place for the shadow clock? (a) needed (b) not needed
39. 39.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) a clock to check (c) chalk to mark shadows (d) a mirror
40. 40.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the time of day is the one thing we change. (a) False (b) True

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