Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 757 · 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.🔦 Is your hand opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
2. 2.🌍 Why does the stick’s shadow move during the day? (a) the ground slides (b) the stick walks (c) Earth keeps spinning (d) the stick grows
3. 3.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the time of day is the one thing we change. (a) True (b) False
4. 4.⚖️ 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
5. 5.🔦 Which of these is translucent? (a) clear plastic film (b) butter paper (c) a wooden board (d) a steel plate
6. 6.🛟 While watching shadows outdoors, what must you never do? (a) look straight at the Sun (b) wear a cap (c) mark with chalk (d) sit in the shade
7. 7.⚖️ 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
8. 8.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) a balloon (c) a clock to check (d) a straight stick
9. 9.🔦 Is a wooden board opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
10. 10.🧺 Do we need a sunny open place for the shadow clock? (a) needed (b) not needed
11. 11.🔍 Which is the odd one out? (a) your hand (b) a book (c) butter paper (d) a brick
12. 12.⚖️ 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 same spot (d) the same stick
13. 13.🔍 Which is the odd one out? (a) butter paper (b) a steel plate (c) tissue paper (d) frosted glass
14. 14.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) a sunny open place (c) turmeric powder (d) a clock to check
15. 15.🧺 Which of these is needed for the shadow clock? (a) a mirror (b) a straight stick (c) a magnet (d) a battery cell
16. 16.⚖️ 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 spot (b) the stick kept upright (c) the time of day (d) shadow length
17. 17.⚖️ 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
18. 18.🧺 Do we need yeast for the shadow clock? (a) not needed (b) needed
19. 19.True or false: a wooden board is transparent. (a) True (b) False
20. 20.🔦 Which of these is translucent? (a) clear glass (b) your hand (c) tissue paper (d) a wooden board
21. 21.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) east (b) up (c) north (d) west
22. 22.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) round (b) short (c) missing (d) long
23. 23.True or false: clear plastic film is opaque. (a) True (b) False
24. 24.🔮 Predict: on a fully cloudy day, the sundial ___. (a) does not work well (b) shows two times (c) works better (d) runs faster
25. 25.⚖️ 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
26. 26.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a straight stick (c) a magnet (d) a sunny open place
27. 27.📘 Why does a shadow form? (a) light bends round it (b) the ground is dark (c) an object blocks light (d) the object is cold
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 change it (b) we measure it (c) we keep it the same
29. 29.⚖️ 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 same spot
30. 30.True or false: air is opaque. (a) False (b) True
31. 31.🔦 Which of these is opaque? (a) clear glass (b) oily paper (c) clean water (d) a wooden board
32. 32.🧺 Do we need a mirror for the shadow clock? (a) needed (b) not needed
33. 33.True or false: butter paper is opaque. (a) False (b) True
34. 34.🔦 Which of these is transparent? (a) a brick (b) tissue paper (c) air (d) your hand
35. 35.True or false: a straight stick is not needed for the shadow clock. (a) False (b) True
36. 36.🛟 What should you wear for a long time in the hot sun? (a) nothing on your head (b) a woollen sweater (c) a cap or hat (d) a raincoat
37. 37.🔦 Is frosted glass opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
38. 38.🧺 Which of these is needed for the shadow clock? (a) a magnet (b) turmeric powder (c) a sunny open place (d) a balloon
39. 39.🔦 Which of these is opaque? (a) air (b) tissue paper (c) oily paper (d) your hand
40. 40.True or false: butter paper is transparent. (a) True (b) False

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