Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 251 · 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 same spot (c) shadow length
2. 2.True or false: a clock to check is not needed for the shadow clock. (a) False (b) True
3. 3.True or false: chalk to mark shadows is needed for the shadow clock. (a) False (b) True
4. 4.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same spot”? (a) we change it (b) we measure it (c) we keep it the same
5. 5.🔦 Is butter paper opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
6. 6.🔦 Which of these is translucent? (a) clean water (b) butter paper (c) air (d) a steel plate
7. 7.🌞 When is a stick’s shadow the shortest? (a) late evening (b) early morning (c) at night (d) around noon
8. 8.🕰️ What is a sundial used for? (a) making rainbows (b) measuring rain (c) telling the time (d) weighing things
9. 9.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same spot is the one thing we change. (a) True (b) False
10. 10.🔍 Which is the odd one out? (a) butter paper (b) oily paper (c) frosted glass (d) clear glass
11. 11.⚖️ 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 measure it (c) we change it
12. 12.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same stick”? (a) we keep it the same (b) we change it (c) we measure it
13. 13.🛟 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
14. 14.True or false: a magnet is not needed for the shadow clock. (a) True (b) False
15. 15.🧺 Do we need a balloon for the shadow clock? (a) not needed (b) needed
16. 16.🔦 Is a wooden board opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
17. 17.🔦 Which of these is translucent? (a) your hand (b) a steel plate (c) a brick (d) oily paper
18. 18.🧺 Do we need a straight stick for the shadow clock? (a) needed (b) not needed
19. 19.⚖️ 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) False (b) True
20. 20.🧺 Which of these is not needed for the shadow clock? (a) a balloon (b) a clock to check (c) chalk to mark shadows (d) a straight stick
21. 21.🧺 Which of these is needed for the shadow clock? (a) chalk to mark shadows (b) a magnet (c) turmeric powder (d) yeast
22. 22.🧺 Which of these is not needed for the shadow clock? (a) a clock to check (b) chalk to mark shadows (c) a magnet (d) a straight stick
23. 23.⚖️ 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) True (b) False
24. 24.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a sunny open place (c) chalk to mark shadows (d) a balloon
25. 25.⚖️ 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
26. 26.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) north (b) up (c) east (d) west
27. 27.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) the stick kept upright (b) the time of day (c) shadow length (d) the same stick
28. 28.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is kept the same? (a) the same stick (b) the time of day (c) shadow length
29. 29.⚖️ 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 time of day (d) the stick kept upright
30. 30.🧺 Which of these is needed for the shadow clock? (a) turmeric powder (b) a straight stick (c) yeast (d) a magnet
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) chalk to mark shadows
32. 32.🧺 Do we need a sunny open place for the shadow clock? (a) not needed (b) needed
33. 33.True or false: butter paper is transparent. (a) False (b) True
34. 34.True or false: a steel plate is opaque. (a) True (b) False
35. 35.🔍 Which is the odd one out? (a) your hand (b) a book (c) tissue paper (d) a steel plate
36. 36.🧺 Which of these is needed for the shadow clock? (a) a magnet (b) turmeric powder (c) a sunny open place (d) a mirror
37. 37.🔍 Which is the odd one out? (a) butter paper (b) frosted glass (c) oily paper (d) a wooden board
38. 38.🛟 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
39. 39.True or false: a sunny open place is not needed for the shadow clock. (a) False (b) True
40. 40.True or false: butter paper is translucent. (a) True (b) False

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