Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 427 · 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 clear glass opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
2. 2.🔮 Predict: on a fully cloudy day, the sundial ___. (a) works better (b) shows two times (c) does not work well (d) runs faster
3. 3.🔦 Is frosted glass opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
4. 4.⚖️ 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
5. 5.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) a straight stick (c) a sunny open place (d) yeast
6. 6.🧺 Do we need a mirror for the shadow clock? (a) not needed (b) needed
7. 7.True or false: butter paper is opaque. (a) True (b) False
8. 8.🔍 Which is the odd one out? (a) oily paper (b) a wooden board (c) a steel plate (d) a brick
9. 9.🕰️ What is a sundial used for? (a) weighing things (b) measuring rain (c) making rainbows (d) telling the time
10. 10.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) up (b) east (c) west (d) north
11. 11.🧺 Do we need turmeric powder for the shadow clock? (a) not needed (b) needed
12. 12.🛟 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
13. 13.⚖️ 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
14. 14.🛟 What should you wear for a long time in the hot sun? (a) a woollen sweater (b) a raincoat (c) a cap or hat (d) nothing on your head
15. 15.🔍 Which is the odd one out? (a) oily paper (b) butter paper (c) a book (d) tissue paper
16. 16.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) a sunny open place (c) turmeric powder (d) a clock to check
17. 17.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) a clock to check (c) a balloon (d) a sunny open place
18. 18.🔍 Which is the odd one out? (a) oily paper (b) frosted glass (c) clear glass (d) butter paper
19. 19.True or false: tissue paper is translucent. (a) True (b) False
20. 20.🧺 Which of these is not needed for the shadow clock? (a) a clock to check (b) chalk to mark shadows (c) a battery cell (d) a straight stick
21. 21.True or false: a magnet is needed for the shadow clock. (a) False (b) True
22. 22.🔦 Is a steel plate opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
23. 23.⚖️ 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
24. 24.🔦 Which of these is transparent? (a) butter paper (b) a wooden board (c) clear glass (d) tissue paper
25. 25.⚖️ 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 time of day (c) shadow length (d) the stick kept upright
26. 26.🧺 Do we need chalk to mark shadows for the shadow clock? (a) not needed (b) needed
27. 27.🔍 Which is the odd one out? (a) clean water (b) a brick (c) a steel plate (d) a wooden board
28. 28.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) chalk to mark shadows (c) a straight stick (d) turmeric powder
29. 29.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a battery cell (b) a straight stick (c) a clock to check (d) a sunny open place
30. 30.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a balloon (b) chalk to mark shadows (c) a sunny open place (d) a clock to check
31. 31.🔦 Which of these is translucent? (a) clean water (b) your hand (c) oily paper (d) a steel plate
32. 32.🧺 Do we need yeast for the shadow clock? (a) needed (b) not needed
33. 33.⚖️ 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) shadow length (c) the same spot (d) the same stick
34. 34.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a sunny open place (c) a magnet (d) chalk to mark shadows
35. 35.🧺 Which of these is needed for the shadow clock? (a) a mirror (b) chalk to mark shadows (c) turmeric powder (d) a balloon
36. 36.True or false: yeast is needed for the shadow clock. (a) False (b) True
37. 37.🔦 Is clean water opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
38. 38.True or false: yeast is not needed for the shadow clock. (a) False (b) True
39. 39.True or false: frosted glass is translucent. (a) False (b) True
40. 40.⚖️ 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

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