Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 169 · 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.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) chalk to mark shadows (c) a balloon (d) a straight stick
2. 2.True or false: a sunny open place is needed for the shadow clock. (a) False (b) True
3. 3.🧺 Which of these is needed for the shadow clock? (a) turmeric powder (b) a battery cell (c) a mirror (d) a sunny open place
4. 4.🔍 Which is the odd one out? (a) frosted glass (b) oily paper (c) clear glass (d) butter paper
5. 5.🧺 Do we need a mirror for the shadow clock? (a) not needed (b) needed
6. 6.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) a balloon (c) a straight stick (d) a clock to check
7. 7.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) turmeric powder (b) a sunny open place (c) a straight stick (d) chalk to mark shadows
8. 8.⚖️ 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 same spot (c) shadow length (d) the time of day
9. 9.📘 Why does a shadow form? (a) the ground is dark (b) light bends round it (c) the object is cold (d) an object blocks light
10. 10.🔦 Which of these is transparent? (a) clean water (b) butter paper (c) a wooden board (d) frosted glass
11. 11.🔦 Which of these is translucent? (a) air (b) a book (c) butter paper (d) a brick
12. 12.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: shadow length is the one thing we change. (a) True (b) False
13. 13.🧺 Do we need yeast for the shadow clock? (a) needed (b) not needed
14. 14.⚖️ 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 stick (c) shadow length
15. 15.🧺 Which of these is needed for the shadow clock? (a) a balloon (b) yeast (c) a battery cell (d) a straight stick
16. 16.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the stick kept upright is what we measure. (a) True (b) False
17. 17.🛟 What should you wear for a long time in the hot sun? (a) a woollen sweater (b) nothing on your head (c) a cap or hat (d) a raincoat
18. 18.🧺 Which of these is not needed for the shadow clock? (a) a clock to check (b) a straight stick (c) a mirror (d) chalk to mark shadows
19. 19.🧺 Do we need a battery cell for the shadow clock? (a) needed (b) not needed
20. 20.⚖️ 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) True (b) False
21. 21.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) west (b) east (c) north (d) up
22. 22.True or false: chalk to mark shadows is not needed for the shadow clock. (a) True (b) False
23. 23.🔍 Which is the odd one out? (a) a wooden board (b) your hand (c) oily paper (d) a steel plate
24. 24.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a mirror (b) a sunny open place (c) chalk to mark shadows (d) a straight stick
25. 25.True or false: tissue paper is translucent. (a) True (b) False
26. 26.🧺 Which of these is needed for the shadow clock? (a) a mirror (b) turmeric powder (c) a balloon (d) chalk to mark shadows
27. 27.🧺 Do we need a straight stick for the shadow clock? (a) not needed (b) needed
28. 28.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) turmeric powder (c) chalk to mark shadows (d) a straight stick
29. 29.🧺 Do we need turmeric powder for the shadow clock? (a) needed (b) not needed
30. 30.True or false: a mirror is not needed for the shadow clock. (a) True (b) False
31. 31.True or false: a book is translucent. (a) True (b) False
32. 32.🔦 Is a book opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
33. 33.⚖️ 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 measure it (c) we change it
34. 34.🧺 Do we need a balloon for the shadow clock? (a) needed (b) not needed
35. 35.⚖️ 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
36. 36.🛟 While watching shadows outdoors, what must you never do? (a) look straight at the Sun (b) wear a cap (c) mark with chalk (d) sit in the shade
37. 37.🌞 When is a stick’s shadow the shortest? (a) early morning (b) around noon (c) late evening (d) at night
38. 38.🧺 Do we need a clock to check for the shadow clock? (a) needed (b) not needed
39. 39.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the time of day”? (a) we change it (b) we keep it the same (c) we measure it
40. 40.🧺 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 sunny open place (d) a magnet

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