Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 113 · 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 is the odd one out? (a) a brick (b) a wooden board (c) butter paper (d) a book
2. 2.🧺 Do we need a straight stick for the shadow clock? (a) not needed (b) needed
3. 3.🛟 While watching shadows outdoors, what must you never do? (a) sit in the shade (b) look straight at the Sun (c) wear a cap (d) mark with chalk
4. 4.⚖️ 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 stick kept upright (c) the same stick (d) shadow length
5. 5.🔍 Which is the odd one out? (a) clear plastic film (b) a steel plate (c) clean water (d) air
6. 6.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) bigger (b) coloured (c) smaller (d) brighter
7. 7.⚖️ 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) True (b) False
8. 8.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) a clock to check (c) a mirror (d) a sunny open place
9. 9.🧺 Which of these is needed for the shadow clock? (a) turmeric powder (b) a straight stick (c) a battery cell (d) a magnet
10. 10.🔦 Which of these is opaque? (a) air (b) clean water (c) a book (d) clear glass
11. 11.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: shadow length is kept the same. (a) False (b) True
12. 12.⚖️ 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) the time of day (c) shadow length
13. 13.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) a mirror (c) a sunny open place (d) a straight stick
14. 14.True or false: a balloon is needed for the shadow clock. (a) False (b) True
15. 15.🔦 Is tissue paper opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
16. 16.🔦 Which of these is translucent? (a) clear plastic film (b) a wooden board (c) a book (d) frosted glass
17. 17.🔦 Is air opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
18. 18.🔦 Is clear plastic film opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
19. 19.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) round (b) long (c) missing (d) short
20. 20.🛟 What should you wear for a long time in the hot sun? (a) a woollen sweater (b) a raincoat (c) a cap or hat (d) nothing on your head
21. 21.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same spot is kept the same. (a) False (b) True
22. 22.🧺 Do we need a magnet for the shadow clock? (a) needed (b) not needed
23. 23.🧺 Which of these is needed for the shadow clock? (a) yeast (b) a balloon (c) a clock to check (d) turmeric powder
24. 24.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) a balloon (c) a clock to check (d) a straight stick
25. 25.⚖️ 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 time of day (c) the same spot
26. 26.🔦 Is a wooden board opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
27. 27.True or false: oily paper is opaque. (a) False (b) True
28. 28.⚖️ 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
29. 29.🧺 Do we need turmeric powder for the shadow clock? (a) needed (b) not needed
30. 30.⚖️ 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
31. 31.🌍 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
32. 32.True or false: a sunny open place is needed for the shadow clock. (a) True (b) False
33. 33.🔦 Is a steel plate opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
34. 34.True or false: a book is transparent. (a) True (b) False
35. 35.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: shadow length is what we measure. (a) False (b) True
36. 36.🔮 Predict: on a fully cloudy day, the sundial ___. (a) works better (b) shows two times (c) runs faster (d) does not work well
37. 37.🔦 Which of these is translucent? (a) a wooden board (b) oily paper (c) air (d) a brick
38. 38.⚖️ 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
39. 39.True or false: a balloon is not needed for the shadow clock. (a) False (b) True
40. 40.🔦 Is a brick opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent

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