Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 172 · 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.🛟 While watching shadows outdoors, what must you never do? (a) look straight at the Sun (b) sit in the shade (c) mark with chalk (d) wear a cap
2. 2.🧺 Which of these is needed for the shadow clock? (a) a magnet (b) a balloon (c) a mirror (d) chalk to mark shadows
3. 3.🧺 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 sunny open place (d) a magnet
4. 4.🔍 Which is the odd one out? (a) a wooden board (b) clear glass (c) clean water (d) air
5. 5.⚖️ 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 same stick (c) the time of day
6. 6.🔦 Is tissue paper opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
7. 7.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) a clock to check (c) a sunny open place (d) a balloon
8. 8.🔦 Is oily paper opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
9. 9.🔦 Is frosted glass opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
10. 10.⚖️ 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
11. 11.True or false: clean water is transparent. (a) True (b) False
12. 12.🧺 Which of these is not needed for the shadow clock? (a) yeast (b) a clock to check (c) chalk to mark shadows (d) a straight stick
13. 13.🔍 Which is the odd one out? (a) a steel plate (b) frosted glass (c) a brick (d) your hand
14. 14.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the stick kept upright”? (a) we measure it (b) we change it (c) we keep it the same
15. 15.⚖️ 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) False (b) True
16. 16.⚖️ 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
17. 17.True or false: clean water is opaque. (a) True (b) False
18. 18.🔍 Which is the odd one out? (a) oily paper (b) air (c) butter paper (d) frosted glass
19. 19.🔦 Which of these is translucent? (a) a wooden board (b) clear glass (c) a book (d) frosted glass
20. 20.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) brighter (b) smaller (c) coloured (d) bigger
21. 21.🛟 What should you wear for a long time in the hot sun? (a) a woollen sweater (b) nothing on your head (c) a raincoat (d) a cap or hat
22. 22.⚖️ 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
23. 23.🔦 Which of these is transparent? (a) butter paper (b) clean water (c) frosted glass (d) a wooden board
24. 24.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) missing (b) short (c) long (d) round
25. 25.📘 Why does a shadow form? (a) an object blocks light (b) the ground is dark (c) the object is cold (d) light bends round it
26. 26.🔦 Which of these is transparent? (a) a book (b) frosted glass (c) oily paper (d) clear glass
27. 27.🔍 Which is the odd one out? (a) clear plastic film (b) air (c) clean water (d) oily paper
28. 28.🧺 Do we need a straight stick for the shadow clock? (a) needed (b) not needed
29. 29.True or false: a book is translucent. (a) False (b) True
30. 30.True or false: clear plastic film is transparent. (a) False (b) True
31. 31.🔦 Is a brick opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
32. 32.🧺 Do we need a magnet for the shadow clock? (a) not needed (b) needed
33. 33.🔦 Which of these is translucent? (a) air (b) a wooden board (c) tissue paper (d) your hand
34. 34.🔦 Which of these is opaque? (a) butter paper (b) clean water (c) tissue paper (d) a wooden board
35. 35.🧺 Which of these is needed for the shadow clock? (a) a clock to check (b) turmeric powder (c) a magnet (d) yeast
36. 36.🔍 Which is the odd one out? (a) a brick (b) a wooden board (c) your hand (d) clean water
37. 37.🌍 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
38. 38.🔍 Which is the odd one out? (a) clear plastic film (b) your hand (c) a steel plate (d) a brick
39. 39.🔮 Predict: on a fully cloudy day, the sundial ___. (a) does not work well (b) works better (c) runs faster (d) shows two times
40. 40.🧺 Do we need a sunny open place for the shadow clock? (a) needed (b) not needed

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