Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 419 · 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? Which of these is the one thing we change? (a) the stick kept upright (b) shadow length (c) the time of day (d) the same spot
2. 2.True or false: a balloon is not needed for the shadow clock. (a) True (b) False
3. 3.⚖️ 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 stick kept upright
4. 4.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same spot is kept the same. (a) False (b) True
5. 5.🔦 Is frosted glass opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
6. 6.🔦 Is a brick opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
7. 7.True or false: a clock to check is not needed for the shadow clock. (a) True (b) False
8. 8.🔦 Which of these is translucent? (a) clear plastic film (b) your hand (c) a book (d) tissue paper
9. 9.True or false: oily paper is translucent. (a) True (b) False
10. 10.🧺 Do we need a sunny open place for the shadow clock? (a) needed (b) not needed
11. 11.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) chalk to mark shadows (c) a battery cell (d) a sunny open place
12. 12.🔍 Which is the odd one out? (a) a brick (b) clear glass (c) a wooden board (d) your hand
13. 13.⚖️ 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 measure it (c) we keep it the same
14. 14.True or false: yeast is needed for the shadow clock. (a) False (b) True
15. 15.🧺 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 straight stick (d) a mirror
16. 16.⚖️ 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 keep it the same (c) we measure it
17. 17.🧺 Which of these is needed for the shadow clock? (a) turmeric powder (b) a straight stick (c) a mirror (d) a magnet
18. 18.🔦 Is a book opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
19. 19.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) the time of day (b) shadow length (c) the stick kept upright (d) the same stick
20. 20.⚖️ 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 measure it (c) we keep it the same
21. 21.🧺 Do we need a balloon for the shadow clock? (a) not needed (b) needed
22. 22.🌍 Why does the stick’s shadow move during the day? (a) the stick grows (b) the ground slides (c) Earth keeps spinning (d) the stick walks
23. 23.🛟 What should you wear for a long time in the hot sun? (a) nothing on your head (b) a cap or hat (c) a raincoat (d) a woollen sweater
24. 24.True or false: your hand is transparent. (a) False (b) True
25. 25.⚖️ 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
26. 26.🧺 Do we need a clock to check for the shadow clock? (a) needed (b) not needed
27. 27.🛟 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
28. 28.🧺 Do we need a mirror for the shadow clock? (a) not needed (b) needed
29. 29.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) chalk to mark shadows (c) a balloon (d) a sunny open place
30. 30.🧺 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 sunny open place
31. 31.🔍 Which is the odd one out? (a) oily paper (b) a wooden board (c) butter paper (d) tissue paper
32. 32.🧺 Which of these is needed for the shadow clock? (a) a balloon (b) turmeric powder (c) chalk to mark shadows (d) a battery cell
33. 33.🧺 Do we need yeast for the shadow clock? (a) needed (b) not needed
34. 34.🧺 Do we need a magnet for the shadow clock? (a) needed (b) not needed
35. 35.🔦 Which of these is transparent? (a) clean water (b) tissue paper (c) frosted glass (d) oily paper
36. 36.🔦 Which of these is opaque? (a) butter paper (b) a brick (c) tissue paper (d) clean water
37. 37.⚖️ 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 time of day (c) the same stick
38. 38.True or false: chalk to mark shadows is not needed for the shadow clock. (a) False (b) True
39. 39.🔦 Is air opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
40. 40.🧺 Which of these is not needed for the shadow clock? (a) a mirror (b) a straight stick (c) a clock to check (d) a sunny open place

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