Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 681 · 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.🧺 Do we need a balloon for the shadow clock? (a) not needed (b) needed
2. 2.True or false: a clock to check is not needed for the shadow clock. (a) False (b) True
3. 3.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is kept the same? (a) the stick kept upright (b) shadow length (c) the time of day
4. 4.True or false: chalk to mark shadows is not needed for the shadow clock. (a) True (b) False
5. 5.🧺 Do we need a mirror for the shadow clock? (a) needed (b) not needed
6. 6.⚖️ 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 measure it (c) we change it
7. 7.🛟 What should you wear for a long time in the hot sun? (a) a woollen sweater (b) a cap or hat (c) a raincoat (d) nothing on your head
8. 8.🧺 Do we need chalk to mark shadows for the shadow clock? (a) not needed (b) needed
9. 9.True or false: chalk to mark shadows is needed for the shadow clock. (a) True (b) False
10. 10.🧺 Which of these is needed for the shadow clock? (a) yeast (b) a mirror (c) a battery cell (d) chalk to mark shadows
11. 11.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a clock to check (c) chalk to mark shadows (d) a mirror
12. 12.True or false: a battery cell is not needed for the shadow clock. (a) False (b) True
13. 13.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the stick kept upright is kept the same. (a) True (b) False
14. 14.⚖️ 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
15. 15.True or false: a balloon is needed for the shadow clock. (a) True (b) False
16. 16.🛟 While watching shadows outdoors, what must you never do? (a) mark with chalk (b) wear a cap (c) look straight at the Sun (d) sit in the shade
17. 17.⚖️ 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
18. 18.🔦 Which of these is opaque? (a) clean water (b) butter paper (c) frosted glass (d) your hand
19. 19.🕰️ What is a sundial used for? (a) weighing things (b) making rainbows (c) telling the time (d) measuring rain
20. 20.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) east (b) west (c) north (d) up
21. 21.🧺 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 straight stick (d) a magnet
22. 22.🧺 Do we need a magnet for the shadow clock? (a) needed (b) not needed
23. 23.🧺 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) yeast (d) a straight stick
24. 24.🔦 Which of these is opaque? (a) air (b) frosted glass (c) a brick (d) oily paper
25. 25.⚖️ 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
26. 26.True or false: oily paper is transparent. (a) True (b) False
27. 27.🔍 Which is the odd one out? (a) clean water (b) tissue paper (c) oily paper (d) frosted glass
28. 28.🔦 Is air opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
29. 29.True or false: butter paper is transparent. (a) True (b) False
30. 30.⚖️ 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 measure it (c) we keep it the same
31. 31.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) turmeric powder (b) a sunny open place (c) a clock to check (d) chalk to mark shadows
32. 32.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a balloon (b) a sunny open place (c) a clock to check (d) a straight stick
33. 33.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same spot is what we measure. (a) False (b) True
34. 34.🔦 Which of these is opaque? (a) a steel plate (b) clear glass (c) clean water (d) oily paper
35. 35.🧺 Which of these is needed for the shadow clock? (a) a mirror (b) a clock to check (c) a battery cell (d) yeast
36. 36.🌞 When is a stick’s shadow the shortest? (a) early morning (b) at night (c) around noon (d) late evening
37. 37.🧺 Which of these is not needed for the shadow clock? (a) a balloon (b) a clock to check (c) a straight stick (d) a sunny open place
38. 38.⚖️ 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) shadow length (d) the same spot
39. 39.🧺 Which of these is needed for the shadow clock? (a) a battery cell (b) yeast (c) turmeric powder (d) a straight stick
40. 40.True or false: a straight stick is not needed for the shadow clock. (a) True (b) False

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