Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 131 · 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? What do we do with “the same stick”? (a) we change it (b) we keep it the same (c) we measure it
2. 2.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) yeast (c) a sunny open place (d) a straight stick
3. 3.⚖️ 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
4. 4.True or false: turmeric powder is not needed for the shadow clock. (a) False (b) True
5. 5.🔍 Which is the odd one out? (a) air (b) a brick (c) clean water (d) clear plastic film
6. 6.🧺 Which of these is needed for the shadow clock? (a) a magnet (b) a battery cell (c) a straight stick (d) a balloon
7. 7.🧺 Do we need chalk to mark shadows for the shadow clock? (a) not needed (b) needed
8. 8.🧺 Which of these is needed for the shadow clock? (a) turmeric powder (b) a balloon (c) a magnet (d) a clock to check
9. 9.True or false: tissue paper is translucent. (a) False (b) True
10. 10.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is the one thing we change? (a) the same spot (b) shadow length (c) the same stick (d) the time of day
11. 11.🔍 Which is the odd one out? (a) frosted glass (b) oily paper (c) butter paper (d) a steel plate
12. 12.⚖️ 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
13. 13.🔦 Is clean water opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
14. 14.⚖️ 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
15. 15.⚖️ 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
16. 16.🛟 What should you wear for a long time in the hot sun? (a) a woollen sweater (b) a cap or hat (c) a raincoat (d) nothing on your head
17. 17.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the stick kept upright”? (a) we measure it (b) we keep it the same (c) we change it
18. 18.🧺 Do we need a battery cell for the shadow clock? (a) not needed (b) needed
19. 19.🔍 Which is the odd one out? (a) your hand (b) a book (c) a steel plate (d) clear glass
20. 20.🔦 Which of these is translucent? (a) a brick (b) butter paper (c) clean water (d) a wooden board
21. 21.True or false: clear plastic film is translucent. (a) True (b) False
22. 22.🔍 Which is the odd one out? (a) air (b) a wooden board (c) clean water (d) clear plastic film
23. 23.🔍 Which is the odd one out? (a) air (b) tissue paper (c) clear plastic film (d) clear glass
24. 24.🕰️ What is a sundial used for? (a) making rainbows (b) telling the time (c) measuring rain (d) weighing things
25. 25.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) brighter (b) smaller (c) bigger (d) coloured
26. 26.True or false: a book is translucent. (a) False (b) True
27. 27.🧺 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 mirror (d) a sunny open place
28. 28.🔦 Is clear plastic film opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
29. 29.🔦 Is tissue paper opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
30. 30.🔮 Predict: on a fully cloudy day, the sundial ___. (a) runs faster (b) does not work well (c) shows two times (d) works better
31. 31.True or false: a magnet is needed for the shadow clock. (a) True (b) False
32. 32.⚖️ 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
33. 33.🧺 Which of these is not needed for the shadow clock? (a) a clock to check (b) a sunny open place (c) a mirror (d) a straight stick
34. 34.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the time of day”? (a) we measure it (b) we keep it the same (c) we change it
35. 35.True or false: frosted glass is opaque. (a) False (b) True
36. 36.🧺 Which of these is needed for the shadow clock? (a) a mirror (b) a battery cell (c) yeast (d) a sunny open place
37. 37.🌞 When is a stick’s shadow the shortest? (a) late evening (b) at night (c) around noon (d) early morning
38. 38.🔦 Is your hand opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
39. 39.🔦 Which of these is transparent? (a) clean water (b) your hand (c) a steel plate (d) a wooden board
40. 40.True or false: a mirror is not needed for the shadow clock. (a) False (b) True

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