Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 422 · 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.🧺 Do we need a sunny open place for the shadow clock? (a) needed (b) not needed
2. 2.🧺 Which of these is not needed for the shadow clock? (a) a clock to check (b) chalk to mark shadows (c) a straight stick (d) a balloon
3. 3.🧺 Which of these is not needed for the shadow clock? (a) a clock to check (b) a sunny open place (c) a straight stick (d) a magnet
4. 4.🔮 Predict: on a fully cloudy day, the sundial ___. (a) works better (b) does not work well (c) runs faster (d) shows two times
5. 5.⚖️ 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 same spot (c) the time of day
6. 6.🔍 Which is the odd one out? (a) a book (b) a wooden board (c) a brick (d) clean water
7. 7.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a sunny open place (c) a battery cell (d) chalk to mark shadows
8. 8.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) a straight stick (c) chalk to mark shadows (d) yeast
9. 9.🧺 Which of these is needed for the shadow clock? (a) turmeric powder (b) a straight stick (c) a balloon (d) a battery cell
10. 10.True or false: a magnet is needed for the shadow clock. (a) False (b) True
11. 11.🧺 Do we need a magnet for the shadow clock? (a) needed (b) not needed
12. 12.🔍 Which is the odd one out? (a) tissue paper (b) a steel plate (c) frosted glass (d) oily paper
13. 13.True or false: butter paper is transparent. (a) False (b) True
14. 14.🔦 Which of these is transparent? (a) your hand (b) a book (c) clear glass (d) a brick
15. 15.🧺 Do we need chalk to mark shadows for the shadow clock? (a) not needed (b) needed
16. 16.🔍 Which is the odd one out? (a) clear plastic film (b) air (c) a book (d) clean water
17. 17.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a mirror (c) a sunny open place (d) a clock to check
18. 18.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) north (b) east (c) up (d) west
19. 19.🧺 Which of these is not needed for the shadow clock? (a) a clock to check (b) a battery cell (c) chalk to mark shadows (d) a straight stick
20. 20.🧺 Do we need yeast for the shadow clock? (a) needed (b) not needed
21. 21.True or false: clear glass is transparent. (a) True (b) False
22. 22.🛟 While watching shadows outdoors, what must you never do? (a) mark with chalk (b) wear a cap (c) look straight at the Sun (d) sit in the shade
23. 23.⚖️ 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
24. 24.🧺 Do we need a battery cell for the shadow clock? (a) not needed (b) needed
25. 25.⚖️ 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
26. 26.⚖️ 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
27. 27.True or false: a steel plate is opaque. (a) True (b) False
28. 28.🔍 Which is the odd one out? (a) oily paper (b) tissue paper (c) clear plastic film (d) butter paper
29. 29.⚖️ 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
30. 30.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: shadow length is kept the same. (a) True (b) False
31. 31.🧺 Which of these is needed for the shadow clock? (a) a battery cell (b) turmeric powder (c) a magnet (d) a sunny open place
32. 32.🧺 Do we need a clock to check for the shadow clock? (a) not needed (b) needed
33. 33.True or false: oily paper is transparent. (a) False (b) True
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.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) chalk to mark shadows (c) a clock to check (d) turmeric powder
36. 36.True or false: a balloon is needed for the shadow clock. (a) False (b) True
37. 37.True or false: frosted glass is translucent. (a) True (b) False
38. 38.⚖️ 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
39. 39.🔦 Which of these is opaque? (a) frosted glass (b) clean water (c) air (d) a steel plate
40. 40.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) bigger (b) brighter (c) coloured (d) smaller

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