Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 212 · 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) needed (b) not needed
2. 2.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is kept the same. (a) False (b) True
3. 3.🔍 Which is the odd one out? (a) your hand (b) clear glass (c) a book (d) a brick
4. 4.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is what we measure. (a) True (b) False
5. 5.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: shadow length is kept the same. (a) True (b) False
6. 6.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) bigger (b) brighter (c) smaller (d) coloured
7. 7.🔦 Is a brick opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
8. 8.🧺 Do we need a magnet for the shadow clock? (a) needed (b) not needed
9. 9.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same spot”? (a) we measure it (b) we keep it the same (c) we change it
10. 10.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) a clock to check (c) a battery cell (d) a straight stick
11. 11.True or false: a battery cell is not needed for the shadow clock. (a) True (b) False
12. 12.True or false: yeast is needed for the shadow clock. (a) False (b) True
13. 13.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) a clock to check (c) a mirror (d) chalk to mark shadows
14. 14.⚖️ 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
15. 15.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) up (b) west (c) east (d) north
16. 16.🛟 What should you wear for a long time in the hot sun? (a) a cap or hat (b) a woollen sweater (c) a raincoat (d) nothing on your head
17. 17.⚖️ 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
18. 18.⚖️ 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) the same spot (c) the stick kept upright (d) shadow length
19. 19.🧺 Do we need a mirror for the shadow clock? (a) not needed (b) needed
20. 20.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) long (b) short (c) missing (d) round
21. 21.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a mirror (b) a clock to check (c) a straight stick (d) a sunny open place
22. 22.🔦 Is oily paper opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
23. 23.🌞 When is a stick’s shadow the shortest? (a) early morning (b) late evening (c) around noon (d) at night
24. 24.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same spot is kept the same. (a) True (b) False
25. 25.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a straight stick (c) a balloon (d) a sunny open place
26. 26.⚖️ 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
27. 27.🧺 Do we need chalk to mark shadows for the shadow clock? (a) needed (b) not needed
28. 28.🔦 Is tissue paper opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
29. 29.⚖️ 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 same stick (c) shadow length (d) the time of day
30. 30.True or false: yeast is not needed for the shadow clock. (a) False (b) True
31. 31.True or false: clear plastic film is transparent. (a) False (b) True
32. 32.🧺 Which of these is not needed for the shadow clock? (a) a clock to check (b) a sunny open place (c) chalk to mark shadows (d) a balloon
33. 33.🧺 Which of these is needed for the shadow clock? (a) chalk to mark shadows (b) a balloon (c) yeast (d) a battery cell
34. 34.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is kept the same? (a) shadow length (b) the stick kept upright (c) the time of day
35. 35.🔦 Which of these is opaque? (a) tissue paper (b) air (c) butter paper (d) a brick
36. 36.True or false: clear plastic film is translucent. (a) False (b) True
37. 37.🧺 Do we need yeast for the shadow clock? (a) not needed (b) needed
38. 38.True or false: oily paper is translucent. (a) False (b) True
39. 39.🌍 Why does the stick’s shadow move during the day? (a) the ground slides (b) the stick grows (c) the stick walks (d) Earth keeps spinning
40. 40.🔦 Is your hand opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent

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