Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 157 · 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.🛟 While watching shadows outdoors, what must you never do? (a) sit in the shade (b) wear a cap (c) mark with chalk (d) look straight at the Sun
2. 2.🔮 Predict: on a fully cloudy day, the sundial ___. (a) works better (b) runs faster (c) shows two times (d) does not work well
3. 3.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a clock to check (c) chalk to mark shadows (d) a balloon
4. 4.True or false: a battery cell is needed for the shadow clock. (a) True (b) False
5. 5.⚖️ 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
6. 6.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) missing (b) round (c) short (d) long
7. 7.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) brighter (b) smaller (c) coloured (d) bigger
8. 8.True or false: yeast is needed for the shadow clock. (a) True (b) False
9. 9.🧺 Which of these is needed for the shadow clock? (a) a balloon (b) turmeric powder (c) a battery cell (d) a straight stick
10. 10.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) chalk to mark shadows (c) a straight stick (d) a balloon
11. 11.True or false: a wooden board is opaque. (a) False (b) True
12. 12.🔍 Which is the odd one out? (a) clear plastic film (b) air (c) a steel plate (d) clear glass
13. 13.🛟 What should you wear for a long time in the hot sun? (a) a cap or hat (b) a woollen sweater (c) nothing on your head (d) a raincoat
14. 14.⚖️ 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
15. 15.🔍 Which is the odd one out? (a) clear glass (b) clear plastic film (c) butter paper (d) clean water
16. 16.True or false: a sunny open place is not needed for the shadow clock. (a) True (b) False
17. 17.True or false: a straight stick is needed for the shadow clock. (a) False (b) True
18. 18.🔦 Which of these is translucent? (a) a wooden board (b) clean water (c) oily paper (d) a steel plate
19. 19.⚖️ 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
20. 20.🌍 Why does the stick’s shadow move during the day? (a) Earth keeps spinning (b) the stick grows (c) the ground slides (d) the stick walks
21. 21.🧺 Which of these is needed for the shadow clock? (a) yeast (b) a battery cell (c) turmeric powder (d) a clock to check
22. 22.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) chalk to mark shadows (c) a sunny open place (d) turmeric powder
23. 23.True or false: a clock to check is not needed for the shadow clock. (a) False (b) True
24. 24.True or false: clear plastic film is transparent. (a) False (b) True
25. 25.⚖️ 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
26. 26.⚖️ 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 same spot (c) the time of day
27. 27.🔍 Which is the odd one out? (a) a book (b) oily paper (c) a brick (d) a steel plate
28. 28.🔦 Which of these is transparent? (a) frosted glass (b) air (c) oily paper (d) a brick
29. 29.🧺 Do we need a mirror for the shadow clock? (a) needed (b) not needed
30. 30.True or false: tissue paper is translucent. (a) False (b) True
31. 31.True or false: a straight stick is not needed for the shadow clock. (a) False (b) True
32. 32.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) a magnet (c) a straight stick (d) a sunny open place
33. 33.True or false: chalk to mark shadows is needed for the shadow clock. (a) False (b) True
34. 34.🔦 Which of these is opaque? (a) frosted glass (b) oily paper (c) butter paper (d) a wooden board
35. 35.True or false: air is transparent. (a) True (b) False
36. 36.🔍 Which is the odd one out? (a) frosted glass (b) clean water (c) tissue paper (d) oily paper
37. 37.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same stick”? (a) we keep it the same (b) we change it (c) we measure it
38. 38.⚖️ 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
39. 39.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a battery cell (b) a clock to check (c) a sunny open place (d) chalk to mark shadows
40. 40.🧺 Which of these is needed for the shadow clock? (a) a battery cell (b) a magnet (c) turmeric powder (d) a sunny open place

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