Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 856 · 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 clock to check for the shadow clock? (a) needed (b) not needed
2. 2.🔍 Which is the odd one out? (a) your hand (b) a steel plate (c) clean water (d) a wooden board
3. 3.True or false: a book is opaque. (a) False (b) True
4. 4.🔍 Which is the odd one out? (a) clear plastic film (b) clean water (c) clear glass (d) oily paper
5. 5.🔮 Predict: on a fully cloudy day, the sundial ___. (a) works better (b) shows two times (c) runs faster (d) does not work well
6. 6.True or false: a mirror is not needed for the shadow clock. (a) False (b) True
7. 7.🔦 Which of these is translucent? (a) tissue paper (b) clear glass (c) clear plastic film (d) a brick
8. 8.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a sunny open place (c) chalk to mark shadows (d) yeast
9. 9.🧺 Do we need a straight stick for the shadow clock? (a) not needed (b) needed
10. 10.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same spot is what we measure. (a) True (b) False
11. 11.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) missing (b) short (c) long (d) round
12. 12.🧺 Which of these is not needed for the shadow clock? (a) turmeric powder (b) a clock to check (c) chalk to mark shadows (d) a straight stick
13. 13.🧺 Do we need turmeric powder for the shadow clock? (a) needed (b) not needed
14. 14.🧺 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 magnet (d) a clock to check
15. 15.🔦 Is frosted glass opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
16. 16.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) chalk to mark shadows (c) a straight stick (d) turmeric powder
17. 17.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) a magnet (c) a straight stick (d) a clock to check
18. 18.🔦 Is butter paper opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
19. 19.🧺 Which of these is needed for the shadow clock? (a) a battery cell (b) a sunny open place (c) a magnet (d) a balloon
20. 20.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same spot”? (a) we keep it the same (b) we measure it (c) we change it
21. 21.🧺 Which of these is needed for the shadow clock? (a) a mirror (b) a balloon (c) chalk to mark shadows (d) yeast
22. 22.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) a mirror (c) a clock to check (d) chalk to mark shadows
23. 23.🛟 What should you wear for a long time in the hot sun? (a) a raincoat (b) a cap or hat (c) nothing on your head (d) a woollen sweater
24. 24.True or false: a sunny open place is needed for the shadow clock. (a) False (b) True
25. 25.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the stick kept upright”? (a) we measure it (b) we keep it the same (c) we change it
26. 26.🔦 Is your hand opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
27. 27.True or false: a sunny open place is not needed for the shadow clock. (a) True (b) False
28. 28.🔦 Which of these is transparent? (a) clear plastic film (b) a brick (c) a book (d) oily paper
29. 29.True or false: tissue paper is opaque. (a) True (b) False
30. 30.True or false: oily paper is opaque. (a) False (b) True
31. 31.True or false: frosted glass is transparent. (a) True (b) False
32. 32.🔦 Is tissue paper opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
33. 33.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a balloon (b) a straight stick (c) chalk to mark shadows (d) a clock to check
34. 34.⚖️ 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 same spot (c) the time of day (d) shadow length
35. 35.⚖️ 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
36. 36.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) chalk to mark shadows (c) a balloon (d) a clock to check
37. 37.True or false: a steel plate is translucent. (a) True (b) False
38. 38.⚖️ 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 stick kept upright (c) shadow length
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 keep it the same (b) we change it (c) we measure it
40. 40.🔦 Which of these is opaque? (a) a wooden board (b) oily paper (c) frosted glass (d) clear glass

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