Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 613 · 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 of these is transparent? (a) your hand (b) a steel plate (c) a brick (d) clear glass
2. 2.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is what we measure. (a) True (b) False
3. 3.True or false: a magnet is not needed for the shadow clock. (a) False (b) True
4. 4.🔦 Which of these is opaque? (a) butter paper (b) a brick (c) frosted glass (d) air
5. 5.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) chalk to mark shadows (c) a clock to check (d) a balloon
6. 6.True or false: a wooden board is translucent. (a) False (b) True
7. 7.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the stick kept upright is the one thing we change. (a) False (b) True
8. 8.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) a balloon (c) a straight stick (d) a clock to check
9. 9.⚖️ 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 same spot (c) the stick kept upright (d) the same stick
10. 10.⚖️ 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
11. 11.🔍 Which is the odd one out? (a) air (b) tissue paper (c) clean water (d) clear glass
12. 12.🧺 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 magnet (d) a sunny open place
13. 13.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a mirror (c) chalk to mark shadows (d) a sunny open place
14. 14.🛟 While watching shadows outdoors, what must you never do? (a) mark with chalk (b) look straight at the Sun (c) wear a cap (d) sit in the shade
15. 15.🔦 Is clean water opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
16. 16.🔍 Which is the odd one out? (a) clean water (b) air (c) clear glass (d) a brick
17. 17.🧺 Which of these is needed for the shadow clock? (a) a battery cell (b) a straight stick (c) a magnet (d) turmeric powder
18. 18.🔍 Which is the odd one out? (a) clean water (b) clear plastic film (c) a wooden board (d) clear glass
19. 19.⚖️ 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
20. 20.⚖️ 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
21. 21.True or false: a wooden board is transparent. (a) True (b) False
22. 22.🌞 When is a stick’s shadow the shortest? (a) early morning (b) around noon (c) at night (d) late evening
23. 23.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) the same spot (b) the same stick (c) the stick kept upright (d) shadow length
24. 24.True or false: air is translucent. (a) True (b) False
25. 25.🔍 Which is the odd one out? (a) a book (b) air (c) a steel plate (d) a brick
26. 26.🛟 What should you wear for a long time in the hot sun? (a) a woollen sweater (b) nothing on your head (c) a cap or hat (d) a raincoat
27. 27.True or false: a balloon is not needed for the shadow clock. (a) False (b) True
28. 28.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is kept the same? (a) the same stick (b) shadow length (c) the time of day
29. 29.True or false: frosted glass is translucent. (a) True (b) False
30. 30.🧺 Do we need a balloon for the shadow clock? (a) not needed (b) needed
31. 31.⚖️ 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
32. 32.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) a clock to check (c) chalk to mark shadows (d) yeast
33. 33.🧺 Do we need chalk to mark shadows for the shadow clock? (a) not needed (b) needed
34. 34.⚖️ 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
35. 35.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) a magnet (c) a sunny open place (d) chalk to mark shadows
36. 36.🧺 Which of these is needed for the shadow clock? (a) a mirror (b) a magnet (c) chalk to mark shadows (d) turmeric powder
37. 37.🔦 Which of these is opaque? (a) frosted glass (b) tissue paper (c) clear glass (d) your hand
38. 38.🔦 Which of these is transparent? (a) a steel plate (b) air (c) tissue paper (d) your hand
39. 39.🔦 Is your hand opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
40. 40.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) brighter (b) bigger (c) coloured (d) smaller

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