Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 297 · 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.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same spot is what we measure. (a) False (b) True
2. 2.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is the one thing we change. (a) True (b) False
3. 3.⚖️ 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) True (b) False
4. 4.🛟 What should you wear for a long time in the hot sun? (a) a cap or hat (b) a raincoat (c) nothing on your head (d) a woollen sweater
5. 5.🔦 Which of these is translucent? (a) tissue paper (b) a book (c) a brick (d) a wooden board
6. 6.⚖️ 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
7. 7.🔮 Predict: on a fully cloudy day, the sundial ___. (a) runs faster (b) does not work well (c) shows two times (d) works better
8. 8.⚖️ 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) shadow length (c) the same stick
9. 9.🛟 While watching shadows outdoors, what must you never do? (a) look straight at the Sun (b) sit in the shade (c) mark with chalk (d) wear a cap
10. 10.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) short (b) round (c) long (d) missing
11. 11.🔦 Which of these is opaque? (a) your hand (b) clear plastic film (c) tissue paper (d) air
12. 12.🧺 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 battery cell (d) a sunny open place
13. 13.🧺 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 sunny open place (d) yeast
14. 14.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same spot is kept the same. (a) True (b) False
15. 15.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the time of day”? (a) we change it (b) we keep it the same (c) we measure it
16. 16.🌍 Why does the stick’s shadow move during the day? (a) the stick walks (b) the ground slides (c) Earth keeps spinning (d) the stick grows
17. 17.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) brighter (b) bigger (c) smaller (d) coloured
18. 18.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: shadow length is the one thing we change. (a) True (b) False
19. 19.🔦 Which of these is transparent? (a) your hand (b) a wooden board (c) clear plastic film (d) butter paper
20. 20.True or false: air is transparent. (a) True (b) False
21. 21.🌞 When is a stick’s shadow the shortest? (a) late evening (b) early morning (c) at night (d) around noon
22. 22.🧺 Which of these is needed for the shadow clock? (a) a sunny open place (b) a balloon (c) a battery cell (d) a magnet
23. 23.🔦 Is tissue paper opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
24. 24.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a mirror (b) a sunny open place (c) a clock to check (d) a straight stick
25. 25.True or false: a steel plate is translucent. (a) False (b) True
26. 26.🔦 Which of these is opaque? (a) a brick (b) clear plastic film (c) clean water (d) oily paper
27. 27.True or false: frosted glass is transparent. (a) False (b) True
28. 28.True or false: tissue paper is translucent. (a) False (b) True
29. 29.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is the one thing we change? (a) shadow length (b) the time of day (c) the stick kept upright (d) the same spot
30. 30.True or false: a straight stick is needed for the shadow clock. (a) True (b) False
31. 31.True or false: chalk to mark shadows is needed for the shadow clock. (a) False (b) True
32. 32.🧺 Do we need a magnet for the shadow clock? (a) needed (b) not needed
33. 33.True or false: a mirror is not needed for the shadow clock. (a) True (b) False
34. 34.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the stick kept upright is what we measure. (a) True (b) False
35. 35.True or false: a battery cell is not needed for the shadow clock. (a) False (b) True
36. 36.🔦 Is clean water opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
37. 37.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “shadow length”? (a) we measure it (b) we change it (c) we keep it the same
38. 38.🔍 Which is the odd one out? (a) a brick (b) a wooden board (c) a book (d) butter paper
39. 39.True or false: a balloon is not needed for the shadow clock. (a) False (b) True
40. 40.⚖️ 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

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