Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 302 · 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? Which of these is kept the same? (a) the time of day (b) the stick kept upright (c) shadow length
2. 2.🧺 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 battery cell (d) a sunny open place
3. 3.🔍 Which is the odd one out? (a) oily paper (b) tissue paper (c) clear plastic film (d) butter paper
4. 4.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) missing (b) round (c) short (d) long
5. 5.🧺 Do we need a mirror for the shadow clock? (a) not needed (b) needed
6. 6.True or false: a book is translucent. (a) True (b) False
7. 7.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a balloon (b) a straight stick (c) chalk to mark shadows (d) a clock to check
8. 8.🔍 Which is the odd one out? (a) butter paper (b) frosted glass (c) a steel plate (d) oily paper
9. 9.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is kept the same? (a) the same spot (b) the time of day (c) shadow length
10. 10.⚖️ 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) shadow length (c) the stick kept upright (d) the time of day
11. 11.📘 Why does a shadow form? (a) light bends round it (b) an object blocks light (c) the ground is dark (d) the object is cold
12. 12.True or false: clear glass is translucent. (a) False (b) True
13. 13.⚖️ 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
14. 14.🔦 Is clean water opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
15. 15.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the time of day”? (a) we keep it the same (b) we change it (c) we measure it
16. 16.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a magnet (b) a straight stick (c) a sunny open place (d) a clock to check
17. 17.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) the same spot (b) the time of day (c) the same stick (d) shadow length
18. 18.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: shadow length is what we measure. (a) False (b) True
19. 19.True or false: a battery cell is not needed for the shadow clock. (a) True (b) False
20. 20.🔦 Is frosted glass opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
21. 21.🧺 Which of these is needed for the shadow clock? (a) a magnet (b) a mirror (c) a balloon (d) a sunny open place
22. 22.🔦 Is tissue paper opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
23. 23.🛟 What should you wear for a long time in the hot sun? (a) nothing on your head (b) a woollen sweater (c) a raincoat (d) a cap or hat
24. 24.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) a clock to check (c) a straight stick (d) a mirror
25. 25.🧺 Do we need a sunny open place 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 “the stick kept upright”? (a) we keep it the same (b) we change it (c) we measure it
27. 27.True or false: a balloon is needed for the shadow clock. (a) True (b) False
28. 28.🧺 Which of these is not needed for the shadow clock? (a) a balloon (b) chalk to mark shadows (c) a sunny open place (d) a clock to check
29. 29.True or false: butter paper is opaque. (a) False (b) True
30. 30.True or false: a magnet is not needed for the shadow clock. (a) False (b) True
31. 31.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the time of day is kept the same. (a) False (b) True
32. 32.🛟 While watching shadows outdoors, what must you never do? (a) sit in the shade (b) look straight at the Sun (c) mark with chalk (d) wear a cap
33. 33.🕰️ What is a sundial used for? (a) weighing things (b) making rainbows (c) measuring rain (d) telling the time
34. 34.🧺 Do we need chalk to mark shadows for the shadow clock? (a) not needed (b) needed
35. 35.⚖️ 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
36. 36.⚖️ 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
37. 37.🌍 Why does the stick’s shadow move during the day? (a) the stick grows (b) the stick walks (c) Earth keeps spinning (d) the ground slides
38. 38.🧺 Which of these is needed for the shadow clock? (a) a magnet (b) a balloon (c) a clock to check (d) yeast
39. 39.🔦 Which of these is opaque? (a) your hand (b) frosted glass (c) clear plastic film (d) butter paper
40. 40.🧺 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 clock to check

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