Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 879 · 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) chalk to mark shadows (b) a balloon (c) turmeric powder (d) yeast
2. 2.🔍 Which is the odd one out? (a) a book (b) your hand (c) a brick (d) clear glass
3. 3.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) short (b) missing (c) long (d) round
4. 4.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same stick”? (a) we measure it (b) we keep it the same (c) we change it
5. 5.🧺 Which of these is not needed for the shadow clock? (a) a clock to check (b) chalk to mark shadows (c) a balloon (d) a sunny open place
6. 6.🔦 Is your hand opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
7. 7.📘 Why does a shadow form? (a) the object is cold (b) light bends round it (c) the ground is dark (d) an object blocks light
8. 8.True or false: a magnet is needed for the shadow clock. (a) False (b) True
9. 9.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the time of day”? (a) we measure it (b) we change it (c) we keep it the same
10. 10.True or false: frosted glass is translucent. (a) True (b) False
11. 11.⚖️ 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 spot (b) the time of day (c) the stick kept upright (d) the same stick
12. 12.🧺 Which of these is needed for the shadow clock? (a) a sunny open place (b) a mirror (c) turmeric powder (d) a magnet
13. 13.🔦 Which of these is translucent? (a) a wooden board (b) frosted glass (c) air (d) a brick
14. 14.🧺 Which of these is needed for the shadow clock? (a) a magnet (b) turmeric powder (c) a clock to check (d) a battery cell
15. 15.🧺 Do we need a straight stick for the shadow clock? (a) not needed (b) needed
16. 16.True or false: a clock to check is needed for the shadow clock. (a) False (b) True
17. 17.⚖️ 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
18. 18.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) a clock to check (c) chalk to mark shadows (d) a magnet
19. 19.🧺 Do we need a clock to check for the shadow clock? (a) not needed (b) needed
20. 20.🧺 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
21. 21.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a sunny open place (c) a clock to check (d) a battery cell
22. 22.⚖️ 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 keep it the same (c) we measure it
23. 23.🔍 Which is the odd one out? (a) a wooden board (b) clear plastic film (c) clear glass (d) clean water
24. 24.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “shadow length”? (a) we change it (b) we keep it the same (c) we measure it
25. 25.True or false: your hand is translucent. (a) True (b) False
26. 26.⚖️ 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
27. 27.⚖️ 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
28. 28.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) chalk to mark shadows (c) a sunny open place (d) a battery cell
29. 29.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) a straight stick (c) a clock to check (d) yeast
30. 30.True or false: yeast is not needed for the shadow clock. (a) True (b) False
31. 31.🧺 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 sunny open place (d) turmeric powder
32. 32.True or false: butter paper is opaque. (a) False (b) True
33. 33.🔦 Is a wooden board opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
34. 34.🔦 Is clear plastic film opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
35. 35.🧺 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 balloon (d) chalk to mark shadows
36. 36.🔍 Which is the odd one out? (a) air (b) clear glass (c) clean water (d) oily paper
37. 37.🧺 Do we need a mirror for the shadow clock? (a) needed (b) not needed
38. 38.🔦 Which of these is translucent? (a) air (b) oily paper (c) a steel plate (d) clean water
39. 39.True or false: clear plastic film is translucent. (a) False (b) True
40. 40.🧺 Which of these is needed for the shadow clock? (a) a straight stick (b) yeast (c) a balloon (d) a magnet

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