Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 923 · 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? True or false: the same spot is kept the same. (a) False (b) True
2. 2.🛟 While watching shadows outdoors, what must you never do? (a) wear a cap (b) look straight at the Sun (c) sit in the shade (d) mark with chalk
3. 3.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the stick kept upright”? (a) we measure it (b) we change it (c) we keep it the same
4. 4.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) short (b) missing (c) round (d) long
5. 5.True or false: a steel plate is opaque. (a) True (b) False
6. 6.True or false: clear plastic film is translucent. (a) False (b) True
7. 7.🔦 Is a steel plate opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
8. 8.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) a clock to check (c) a sunny open place (d) a balloon
9. 9.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) a sunny open place (c) a mirror (d) a straight stick
10. 10.🧺 Do we need chalk to mark shadows for the shadow clock? (a) needed (b) not needed
11. 11.🔦 Which of these is opaque? (a) clear glass (b) frosted glass (c) tissue paper (d) a wooden board
12. 12.True or false: oily paper is translucent. (a) True (b) False
13. 13.⚖️ 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 time of day (c) the same spot (d) the stick kept upright
14. 14.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) chalk to mark shadows (c) a magnet (d) a sunny open place
15. 15.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) a straight stick (c) turmeric powder (d) a clock to check
16. 16.True or false: your hand is transparent. (a) True (b) False
17. 17.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) smaller (b) brighter (c) bigger (d) coloured
18. 18.🧺 Which of these is needed for the shadow clock? (a) a straight stick (b) yeast (c) a battery cell (d) a balloon
19. 19.🔦 Is a wooden board opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
20. 20.🕰️ What is a sundial used for? (a) measuring rain (b) weighing things (c) telling the time (d) making rainbows
21. 21.🧺 Which of these is not needed for the shadow clock? (a) yeast (b) a clock to check (c) a sunny open place (d) a straight stick
22. 22.🧺 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 clock to check (d) a balloon
23. 23.🔦 Which of these is translucent? (a) frosted glass (b) a steel plate (c) your hand (d) clear glass
24. 24.True or false: a straight stick is not needed for the shadow clock. (a) False (b) True
25. 25.⚖️ 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
26. 26.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “shadow length”? (a) we keep it the same (b) we measure it (c) we change it
27. 27.⚖️ 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
28. 28.True or false: a clock to check is not needed for the shadow clock. (a) False (b) True
29. 29.🌞 When is a stick’s shadow the shortest? (a) around noon (b) late evening (c) early morning (d) at night
30. 30.🔦 Which of these is translucent? (a) a brick (b) a steel plate (c) oily paper (d) a wooden board
31. 31.🧺 Do we need a straight stick for the shadow clock? (a) not needed (b) needed
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 change it (c) we keep it the same
33. 33.🧺 Do we need a battery cell for the shadow clock? (a) not needed (b) needed
34. 34.True or false: a wooden board is opaque. (a) True (b) False
35. 35.🔦 Which of these is opaque? (a) tissue paper (b) a steel plate (c) clear plastic film (d) butter paper
36. 36.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the stick kept upright is the one thing we change. (a) True (b) False
37. 37.🔍 Which is the odd one out? (a) clean water (b) clear glass (c) air (d) oily paper
38. 38.🧺 Do we need a sunny open place for the shadow clock? (a) needed (b) not needed
39. 39.🛟 What should you wear for a long time in the hot sun? (a) a cap or hat (b) a woollen sweater (c) a raincoat (d) nothing on your head
40. 40.⚖️ 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 keep it the same (c) we measure it

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