Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 953 · 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) look straight at the Sun (b) mark with chalk (c) wear a cap (d) sit in the shade
2. 2.🔍 Which is the odd one out? (a) a steel plate (b) your hand (c) clear glass (d) a brick
3. 3.🧺 Which of these is needed for the shadow clock? (a) a mirror (b) a clock to check (c) a battery cell (d) yeast
4. 4.🧺 Do we need a magnet for the shadow clock? (a) needed (b) not needed
5. 5.🔦 Is clean water opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
6. 6.🔍 Which is the odd one out? (a) a book (b) oily paper (c) butter paper (d) frosted glass
7. 7.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a magnet (b) chalk to mark shadows (c) a clock to check (d) a sunny open place
8. 8.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) the same stick (b) the time of day (c) the stick kept upright (d) shadow length
9. 9.True or false: a sunny open place is not needed for the shadow clock. (a) True (b) False
10. 10.⚖️ 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
11. 11.🔦 Is a wooden board opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
12. 12.⚖️ 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
13. 13.True or false: clear plastic film is opaque. (a) True (b) False
14. 14.🧺 Which of these is needed for the shadow clock? (a) yeast (b) a magnet (c) turmeric powder (d) a straight stick
15. 15.🕰️ What is a sundial used for? (a) weighing things (b) measuring rain (c) telling the time (d) making rainbows
16. 16.🧺 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 sunny open place (d) a balloon
17. 17.🔦 Is tissue paper opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
18. 18.⚖️ 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 stick kept upright (c) the time of day (d) the same spot
19. 19.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) long (b) short (c) round (d) missing
20. 20.True or false: a magnet is not needed for the shadow clock. (a) True (b) False
21. 21.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is kept the same. (a) True (b) False
22. 22.🔦 Which of these is transparent? (a) clean water (b) a book (c) frosted glass (d) a steel plate
23. 23.⚖️ 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) False (b) True
24. 24.🧺 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 clock to check (d) a straight stick
25. 25.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) a clock to check (c) a sunny open place (d) a magnet
26. 26.🧺 Do we need turmeric powder for the shadow clock? (a) needed (b) not needed
27. 27.🔍 Which is the odd one out? (a) a brick (b) clear glass (c) air (d) clear plastic film
28. 28.⚖️ 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
29. 29.⚖️ 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
30. 30.⚖️ 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 stick kept upright (c) the time of day
31. 31.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “shadow length”? (a) we change it (b) we keep it the same (c) we measure it
32. 32.⚖️ 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
33. 33.🌞 When is a stick’s shadow the shortest? (a) early morning (b) late evening (c) around noon (d) at night
34. 34.⚖️ 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
35. 35.🔦 Is clear glass opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
36. 36.⚖️ 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) False (b) True
37. 37.🛟 What should you wear for a long time in the hot sun? (a) a cap or hat (b) nothing on your head (c) a woollen sweater (d) a raincoat
38. 38.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) smaller (b) coloured (c) brighter (d) bigger
39. 39.🧺 Do we need a mirror for the shadow clock? (a) needed (b) not needed
40. 40.🔍 Which is the odd one out? (a) clear glass (b) a wooden board (c) air (d) clear plastic film

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