Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 571 · 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.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) turmeric powder (b) a clock to check (c) a straight stick (d) a sunny open place
2. 2.🧺 Do we need a straight stick for the shadow clock? (a) needed (b) not needed
3. 3.🔍 Which is the odd one out? (a) air (b) clear plastic film (c) clear glass (d) a wooden board
4. 4.🧺 Do we need a battery cell for the shadow clock? (a) needed (b) not needed
5. 5.🔦 Is a brick opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
6. 6.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) missing (b) long (c) short (d) round
7. 7.🌍 Why does the stick’s shadow move during the day? (a) Earth keeps spinning (b) the stick walks (c) the stick grows (d) the ground slides
8. 8.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) up (b) west (c) north (d) east
9. 9.⚖️ 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
10. 10.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) a straight stick (c) a sunny open place (d) a magnet
11. 11.⚖️ 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 change it (c) we measure it
12. 12.⚖️ 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
13. 13.True or false: a clock to check is needed for the shadow clock. (a) True (b) False
14. 14.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) a sunny open place (c) a balloon (d) a straight stick
15. 15.⚖️ 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
16. 16.🧺 Do we need a sunny open place for the shadow clock? (a) not needed (b) needed
17. 17.🌞 When is a stick’s shadow the shortest? (a) around noon (b) at night (c) early morning (d) late evening
18. 18.⚖️ 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
19. 19.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same spot”? (a) we measure it (b) we change it (c) we keep it the same
20. 20.🧺 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
21. 21.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) a battery cell (c) a straight stick (d) a clock to check
22. 22.🔍 Which is the odd one out? (a) a wooden board (b) a book (c) a brick (d) oily paper
23. 23.🛟 While watching shadows outdoors, what must you never do? (a) sit in the shade (b) look straight at the Sun (c) mark with chalk (d) wear a cap
24. 24.📘 Why does a shadow form? (a) an object blocks light (b) light bends round it (c) the object is cold (d) the ground is dark
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 spot (b) shadow length (c) the time of day
26. 26.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) brighter (b) bigger (c) smaller (d) coloured
27. 27.🔦 Is clear glass opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
28. 28.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “shadow length”? (a) we keep it the same (b) we measure it (c) we change it
29. 29.🧺 Do we need chalk to mark shadows for the shadow clock? (a) not needed (b) needed
30. 30.⚖️ 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 same stick (d) the stick kept upright
31. 31.True or false: clean water is transparent. (a) True (b) False
32. 32.🔦 Which of these is opaque? (a) butter paper (b) clear plastic film (c) air (d) your hand
33. 33.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a sunny open place (c) a clock to check (d) a mirror
34. 34.🔦 Which of these is opaque? (a) clean water (b) a steel plate (c) clear plastic film (d) butter paper
35. 35.True or false: a balloon is needed for the shadow clock. (a) False (b) True
36. 36.🧺 Which of these is needed for the shadow clock? (a) a sunny open place (b) a balloon (c) a magnet (d) yeast
37. 37.True or false: a sunny open place is not needed for the shadow clock. (a) False (b) True
38. 38.🔍 Which is the odd one out? (a) tissue paper (b) oily paper (c) clear glass (d) frosted glass
39. 39.🔍 Which is the odd one out? (a) tissue paper (b) frosted glass (c) a brick (d) butter paper
40. 40.⚖️ 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 stick kept upright (c) the same stick (d) shadow length

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