Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 674 · 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.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) short (b) round (c) long (d) missing
2. 2.⚖️ 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
3. 3.🔦 Is oily paper opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
4. 4.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same spot is the one thing we change. (a) True (b) False
5. 5.True or false: a brick is translucent. (a) False (b) True
6. 6.🔦 Is a book opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
7. 7.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the stick kept upright”? (a) we change it (b) we measure it (c) we keep it the same
8. 8.True or false: a brick is opaque. (a) True (b) False
9. 9.🔦 Which of these is opaque? (a) butter paper (b) a wooden board (c) clear glass (d) tissue paper
10. 10.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) chalk to mark shadows (c) yeast (d) a straight stick
11. 11.True or false: oily paper is opaque. (a) True (b) False
12. 12.🔍 Which is the odd one out? (a) butter paper (b) a brick (c) tissue paper (d) frosted glass
13. 13.⚖️ 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 measure it (c) we keep it the same
14. 14.True or false: a clock to check is not needed for the shadow clock. (a) True (b) False
15. 15.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) smaller (b) coloured (c) brighter (d) bigger
16. 16.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a battery cell (b) chalk to mark shadows (c) a straight stick (d) a sunny open place
17. 17.🧺 Do we need a balloon for the shadow clock? (a) not needed (b) needed
18. 18.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the stick kept upright is kept the same. (a) False (b) True
19. 19.⚖️ 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 time of day (c) shadow length (d) the same stick
20. 20.🧺 Which of these is needed for the shadow clock? (a) chalk to mark shadows (b) turmeric powder (c) a magnet (d) yeast
21. 21.🔦 Which of these is translucent? (a) air (b) butter paper (c) clean water (d) a wooden board
22. 22.🛟 What should you wear for a long time in the hot sun? (a) a woollen sweater (b) a raincoat (c) nothing on your head (d) a cap or hat
23. 23.🧺 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 magnet (d) a sunny open place
24. 24.🔦 Is air opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
25. 25.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) a sunny open place (c) a battery cell (d) chalk to mark shadows
26. 26.🌞 When is a stick’s shadow the shortest? (a) early morning (b) around noon (c) late evening (d) at night
27. 27.🧺 Do we need yeast for the shadow clock? (a) not needed (b) needed
28. 28.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: shadow length is what we measure. (a) True (b) False
29. 29.🔦 Is clear glass opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
30. 30.True or false: a sunny open place is not needed for the shadow clock. (a) False (b) True
31. 31.🔮 Predict: on a fully cloudy day, the sundial ___. (a) runs faster (b) works better (c) shows two times (d) does not work well
32. 32.🔦 Which of these is translucent? (a) frosted glass (b) a wooden board (c) clean water (d) air
33. 33.⚖️ 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
34. 34.🧺 Do we need chalk to mark shadows for the shadow clock? (a) not needed (b) needed
35. 35.True or false: a straight stick is not needed for the shadow clock. (a) False (b) True
36. 36.🧺 Which of these is needed for the shadow clock? (a) a magnet (b) a mirror (c) yeast (d) a clock to check
37. 37.🌍 Why does the stick’s shadow move during the day? (a) the ground slides (b) the stick grows (c) Earth keeps spinning (d) the stick walks
38. 38.🔦 Which of these is opaque? (a) butter paper (b) frosted glass (c) a steel plate (d) oily paper
39. 39.🧺 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 mirror (d) chalk to mark shadows
40. 40.🔍 Which is the odd one out? (a) butter paper (b) frosted glass (c) tissue paper (d) clear glass

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