Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 367 · 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.🧺 Which of these is not needed for the shadow clock? (a) a clock to check (b) a straight stick (c) a sunny open place (d) turmeric powder
2. 2.📘 Why does a shadow form? (a) an object blocks light (b) light bends round it (c) the ground is dark (d) the object is cold
3. 3.🧺 Which of these is needed for the shadow clock? (a) yeast (b) turmeric powder (c) a straight stick (d) a battery cell
4. 4.🔦 Is your hand opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
5. 5.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same stick”? (a) we keep it the same (b) we measure it (c) we change it
6. 6.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) short (b) long (c) missing (d) round
7. 7.⚖️ 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 stick kept upright
8. 8.🔦 Is a brick opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
9. 9.True or false: clean water is translucent. (a) False (b) True
10. 10.🔦 Which of these is opaque? (a) tissue paper (b) oily paper (c) a wooden board (d) clear glass
11. 11.🌍 Why does the stick’s shadow move during the day? (a) the stick walks (b) Earth keeps spinning (c) the stick grows (d) the ground slides
12. 12.🔍 Which is the odd one out? (a) a steel plate (b) a book (c) butter paper (d) a wooden board
13. 13.🧺 Do we need chalk to mark shadows for the shadow clock? (a) not needed (b) needed
14. 14.🧺 Do we need a mirror for the shadow clock? (a) not needed (b) needed
15. 15.🔮 Predict: on a fully cloudy day, the sundial ___. (a) runs faster (b) does not work well (c) shows two times (d) works better
16. 16.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a mirror (b) chalk to mark shadows (c) a sunny open place (d) a straight stick
17. 17.True or false: a magnet is needed for the shadow clock. (a) False (b) True
18. 18.🔦 Which of these is transparent? (a) a book (b) a steel plate (c) butter paper (d) clear plastic film
19. 19.🔦 Which of these is opaque? (a) butter paper (b) your hand (c) frosted glass (d) clear plastic film
20. 20.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: shadow length is the one thing we change. (a) True (b) False
21. 21.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: shadow length is what we measure. (a) True (b) False
22. 22.🛟 While watching shadows outdoors, what must you never do? (a) look straight at the Sun (b) wear a cap (c) sit in the shade (d) mark with chalk
23. 23.⚖️ 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 keep it the same (c) we change it
24. 24.🧺 Which of these is needed for the shadow clock? (a) a sunny open place (b) a magnet (c) turmeric powder (d) a battery cell
25. 25.True or false: clean water is opaque. (a) True (b) False
26. 26.🛟 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
27. 27.True or false: a battery cell is not needed for the shadow clock. (a) True (b) False
28. 28.⚖️ 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
29. 29.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a magnet (b) a straight stick (c) a sunny open place (d) a clock to check
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 same stick (b) the time of day (c) shadow length (d) the stick kept upright
31. 31.🔦 Which of these is translucent? (a) a wooden board (b) a steel plate (c) clear glass (d) tissue paper
32. 32.🔦 Which of these is transparent? (a) oily paper (b) clean water (c) a book (d) frosted glass
33. 33.🔦 Is frosted glass opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
34. 34.True or false: a clock to check is not needed for the shadow clock. (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 measure it (c) we keep it the same
36. 36.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) a clock to check (c) a straight stick (d) a battery cell
37. 37.True or false: tissue paper is opaque. (a) True (b) False
38. 38.⚖️ 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 change it (c) we measure it
39. 39.True or false: a sunny open place is not needed for the shadow clock. (a) True (b) False
40. 40.🧺 Do we need a magnet for the shadow clock? (a) needed (b) not needed

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