Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 513 · 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.🧺 Which of these is needed for the shadow clock? (a) a mirror (b) a straight stick (c) a battery cell (d) a balloon
2. 2.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is the one thing we change? (a) the stick kept upright (b) shadow length (c) the time of day (d) the same stick
3. 3.True or false: a steel plate is opaque. (a) True (b) False
4. 4.True or false: clear glass is opaque. (a) True (b) False
5. 5.🔍 Which is the odd one out? (a) a brick (b) clear glass (c) air (d) clean water
6. 6.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) a straight stick (c) a sunny open place (d) a magnet
7. 7.🧺 Do we need chalk to mark shadows for the shadow clock? (a) needed (b) not needed
8. 8.📘 Why does a shadow form? (a) the object is cold (b) the ground is dark (c) light bends round it (d) an object blocks light
9. 9.🌍 Why does the stick’s shadow move during the day? (a) Earth keeps spinning (b) the stick grows (c) the stick walks (d) the ground slides
10. 10.🛟 What should you wear for a long time in the hot sun? (a) a raincoat (b) a cap or hat (c) a woollen sweater (d) nothing on your head
11. 11.⚖️ 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 change it (c) we measure it
12. 12.⚖️ 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
13. 13.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a clock to check (c) a battery cell (d) a sunny open place
14. 14.🔦 Which of these is translucent? (a) a steel plate (b) clear plastic film (c) frosted glass (d) clean water
15. 15.True or false: a magnet is not needed for the shadow clock. (a) True (b) False
16. 16.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) a mirror (c) a straight stick (d) chalk to mark shadows
17. 17.True or false: clear plastic film is translucent. (a) False (b) True
18. 18.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) bigger (b) brighter (c) smaller (d) coloured
19. 19.🔍 Which is the odd one out? (a) a book (b) oily paper (c) a brick (d) a wooden board
20. 20.🧺 Do we need a magnet for the shadow clock? (a) needed (b) not needed
21. 21.🧺 Which of these is needed for the shadow clock? (a) a mirror (b) yeast (c) a balloon (d) a clock to check
22. 22.🔦 Is tissue paper opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
23. 23.🧺 Do we need a sunny open place for the shadow clock? (a) not needed (b) needed
24. 24.🛟 While watching shadows outdoors, what must you never do? (a) wear a cap (b) sit in the shade (c) mark with chalk (d) look straight at the Sun
25. 25.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) yeast (c) a clock to check (d) chalk to mark shadows
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.⚖️ 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
28. 28.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) long (b) round (c) short (d) missing
29. 29.🌞 When is a stick’s shadow the shortest? (a) at night (b) late evening (c) around noon (d) early morning
30. 30.🧺 Which of these is needed for the shadow clock? (a) chalk to mark shadows (b) a balloon (c) a magnet (d) a battery cell
31. 31.🔦 Which of these is translucent? (a) clear glass (b) oily paper (c) a steel plate (d) a wooden board
32. 32.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is what we measure. (a) False (b) True
33. 33.True or false: a balloon is not needed for the shadow clock. (a) False (b) True
34. 34.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) a mirror (c) chalk to mark shadows (d) a straight stick
35. 35.⚖️ 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
36. 36.⚖️ 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) shadow length (c) the same stick
37. 37.True or false: a straight stick is needed for the shadow clock. (a) True (b) False
38. 38.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) a battery cell (c) a sunny open place (d) a straight stick
39. 39.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is kept the same. (a) True (b) False
40. 40.🔍 Which is the odd one out? (a) clean water (b) frosted glass (c) oily paper (d) butter paper

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