Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 585 · 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.🔦 Is your hand opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
2. 2.🧺 Do we need turmeric powder for the shadow clock? (a) needed (b) not needed
3. 3.True or false: butter paper is transparent. (a) True (b) False
4. 4.🔦 Is frosted glass opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
5. 5.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a magnet (b) a sunny open place (c) chalk to mark shadows (d) a straight stick
6. 6.🛟 While watching shadows outdoors, what must you never do? (a) look straight at the Sun (b) mark with chalk (c) wear a cap (d) sit in the shade
7. 7.True or false: air is transparent. (a) False (b) True
8. 8.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is kept the same? (a) the same spot (b) shadow length (c) the time of day
9. 9.🔦 Which of these is transparent? (a) your hand (b) butter paper (c) a steel plate (d) clear glass
10. 10.⚖️ 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 keep it the same (c) we change it
11. 11.True or false: a mirror is needed for the shadow clock. (a) False (b) True
12. 12.🛟 What should you wear for a long time in the hot sun? (a) a cap or hat (b) a woollen sweater (c) a raincoat (d) nothing on your head
13. 13.True or false: a battery cell is not needed for the shadow clock. (a) False (b) True
14. 14.🔍 Which is the odd one out? (a) a steel plate (b) clear glass (c) clear plastic film (d) clean water
15. 15.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) round (b) long (c) missing (d) short
16. 16.🔍 Which is the odd one out? (a) frosted glass (b) butter paper (c) tissue paper (d) a book
17. 17.⚖️ 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
18. 18.⚖️ 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
19. 19.🔦 Is butter paper opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
20. 20.⚖️ 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
21. 21.🔦 Which of these is transparent? (a) a steel plate (b) a wooden board (c) clear plastic film (d) tissue paper
22. 22.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) shadow length (b) the time of day (c) the same stick (d) the stick kept upright
23. 23.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same stick”? (a) we change it (b) we keep it the same (c) we measure it
24. 24.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) brighter (b) smaller (c) bigger (d) coloured
25. 25.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is the one thing we change? (a) the stick kept upright (b) the time of day (c) the same spot (d) shadow length
26. 26.🔮 Predict: on a fully cloudy day, the sundial ___. (a) shows two times (b) runs faster (c) does not work well (d) works better
27. 27.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is kept the same. (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 keep it the same (b) we measure it (c) we change it
29. 29.⚖️ 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 measure it (c) we keep it the same
30. 30.🔦 Which of these is transparent? (a) a brick (b) butter paper (c) oily paper (d) clean water
31. 31.🔦 Which of these is opaque? (a) oily paper (b) clear glass (c) a steel plate (d) frosted glass
32. 32.🧺 Which of these is not needed for the shadow clock? (a) a magnet (b) a clock to check (c) a straight stick (d) chalk to mark shadows
33. 33.🧺 Which of these is needed for the shadow clock? (a) a clock to check (b) yeast (c) turmeric powder (d) a mirror
34. 34.True or false: turmeric powder is needed for the shadow clock. (a) True (b) False
35. 35.True or false: a straight stick is not needed for the shadow clock. (a) True (b) False
36. 36.🧺 Do we need a magnet for the shadow clock? (a) needed (b) not needed
37. 37.True or false: a brick is opaque. (a) False (b) True
38. 38.True or false: yeast is not needed for the shadow clock. (a) True (b) False
39. 39.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) a straight stick (c) a mirror (d) chalk to mark shadows
40. 40.🧺 Do we need a clock to check for the shadow clock? (a) not needed (b) needed

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