Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 534 · 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) a clock to check (b) a straight stick (c) yeast (d) chalk to mark shadows
2. 2.⚖️ 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 keep it the same (c) we measure it
3. 3.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) short (b) long (c) round (d) missing
4. 4.🧺 Do we need a balloon for the shadow clock? (a) not needed (b) needed
5. 5.🔍 Which is the odd one out? (a) a steel plate (b) a book (c) a wooden board (d) clean water
6. 6.🧺 Which of these is needed for the shadow clock? (a) yeast (b) a balloon (c) a mirror (d) a clock to check
7. 7.⚖️ 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) the same stick (c) shadow length
8. 8.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is what we measure. (a) False (b) True
9. 9.🔦 Is air opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
10. 10.⚖️ 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) True (b) False
11. 11.🧺 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 straight stick (d) a battery cell
12. 12.🔦 Is frosted glass opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
13. 13.🧺 Which of these is needed for the shadow clock? (a) turmeric powder (b) a sunny open place (c) yeast (d) a magnet
14. 14.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) a battery cell (c) a sunny open place (d) chalk to mark shadows
15. 15.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a balloon (b) chalk to mark shadows (c) a clock to check (d) a sunny open place
16. 16.True or false: yeast is not needed for the shadow clock. (a) False (b) True
17. 17.🧺 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 clock to check (d) a magnet
18. 18.🔦 Which of these is opaque? (a) frosted glass (b) clear plastic film (c) a brick (d) air
19. 19.True or false: a brick is transparent. (a) False (b) True
20. 20.🧺 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
21. 21.⚖️ 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
22. 22.🔦 Which of these is opaque? (a) your hand (b) clear glass (c) tissue paper (d) clear plastic film
23. 23.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the time of day”? (a) we change it (b) we measure it (c) we keep it the same
24. 24.🔦 Is clear plastic film opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
25. 25.🔦 Is your hand opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
26. 26.True or false: a straight stick is not needed for the shadow clock. (a) False (b) True
27. 27.⚖️ 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
28. 28.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) turmeric powder (c) a sunny open place (d) a straight stick
29. 29.⚖️ 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 time of day (c) shadow length (d) the stick kept upright
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) shadow length
31. 31.⚖️ 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 keep it the same (c) we measure it
32. 32.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) a straight stick (c) yeast (d) a clock to check
33. 33.⚖️ 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 stick kept upright (c) the time of day
34. 34.True or false: clear glass is translucent. (a) False (b) True
35. 35.⚖️ 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
36. 36.🔦 Is a wooden board opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
37. 37.True or false: a sunny open place is needed for the shadow clock. (a) True (b) False
38. 38.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) north (b) up (c) east (d) west
39. 39.🔍 Which is the odd one out? (a) clear plastic film (b) clean water (c) a wooden board (d) clear glass
40. 40.🧺 Which of these is needed for the shadow clock? (a) a battery cell (b) chalk to mark shadows (c) a balloon (d) turmeric powder

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