Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 772 · 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 is the odd one out? (a) a wooden board (b) air (c) a steel plate (d) a book
2. 2.🔦 Is oily paper opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
3. 3.🧺 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 sunny open place (d) a mirror
4. 4.⚖️ 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 stick kept upright (c) the same spot (d) the time of day
5. 5.🔍 Which is the odd one out? (a) clear glass (b) a steel plate (c) your hand (d) a wooden board
6. 6.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) a magnet (c) a straight stick (d) a clock to check
7. 7.🧺 Do we need turmeric powder for the shadow clock? (a) not needed (b) needed
8. 8.🧺 Which of these is needed for the shadow clock? (a) a straight stick (b) a mirror (c) a balloon (d) turmeric powder
9. 9.⚖️ 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
10. 10.🔦 Which of these is transparent? (a) tissue paper (b) clean water (c) frosted glass (d) a steel plate
11. 11.🔦 Which of these is opaque? (a) butter paper (b) your hand (c) frosted glass (d) oily paper
12. 12.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the time of day is kept the same. (a) True (b) False
13. 13.True or false: turmeric powder is needed for the shadow clock. (a) True (b) False
14. 14.🔦 Which of these is transparent? (a) a book (b) air (c) a wooden board (d) oily paper
15. 15.⚖️ 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
16. 16.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a magnet (b) a clock to check (c) a sunny open place (d) chalk to mark shadows
17. 17.🛟 What should you wear for a long time in the hot sun? (a) a cap or hat (b) a raincoat (c) nothing on your head (d) a woollen sweater
18. 18.📘 Why does a shadow form? (a) the object is cold (b) the ground is dark (c) light bends round it (d) an object blocks light
19. 19.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same spot is the one thing we change. (a) True (b) False
20. 20.🧺 Do we need a clock to check for the shadow clock? (a) not needed (b) needed
21. 21.🧺 Which of these is needed for the shadow clock? (a) a balloon (b) a battery cell (c) a sunny open place (d) turmeric powder
22. 22.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a clock to check (c) a battery cell (d) a sunny open place
23. 23.🛟 While watching shadows outdoors, what must you never do? (a) look straight at the Sun (b) mark with chalk (c) wear a cap (d) sit in the shade
24. 24.True or false: your hand is transparent. (a) False (b) True
25. 25.True or false: a clock to check is not needed for the shadow clock. (a) True (b) False
26. 26.🧺 Which of these is not needed for the shadow clock? (a) turmeric powder (b) chalk to mark shadows (c) a straight stick (d) a clock to check
27. 27.⚖️ 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
28. 28.🧺 Do we need a battery cell for the shadow clock? (a) not needed (b) needed
29. 29.🔦 Is frosted glass opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
30. 30.🔍 Which is the odd one out? (a) tissue paper (b) frosted glass (c) a wooden board (d) oily paper
31. 31.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) east (b) up (c) west (d) north
32. 32.🔍 Which is the odd one out? (a) a wooden board (b) tissue paper (c) a brick (d) your hand
33. 33.🔮 Predict: on a fully cloudy day, the sundial ___. (a) works better (b) runs faster (c) does not work well (d) shows two times
34. 34.🧺 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 balloon (d) a clock to check
35. 35.True or false: clear glass is translucent. (a) True (b) False
36. 36.🔦 Is butter paper opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
37. 37.🔦 Is a wooden board opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
38. 38.🧺 Do we need a mirror for the shadow clock? (a) needed (b) not needed
39. 39.🧺 Do we need a magnet for the shadow clock? (a) needed (b) not needed
40. 40.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is the one thing we change. (a) False (b) True

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