Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 891 · 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.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) brighter (b) bigger (c) smaller (d) coloured
2. 2.🔍 Which is the odd one out? (a) air (b) clean water (c) your hand (d) clear plastic film
3. 3.True or false: a battery cell is not needed for the shadow clock. (a) False (b) True
4. 4.🛟 What should you wear for a long time in the hot sun? (a) a cap or hat (b) a woollen sweater (c) nothing on your head (d) a raincoat
5. 5.True or false: butter paper is translucent. (a) False (b) True
6. 6.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is the one thing we change? (a) shadow length (b) the stick kept upright (c) the time of day (d) the same stick
7. 7.🔍 Which is the odd one out? (a) clear glass (b) tissue paper (c) frosted glass (d) butter paper
8. 8.⚖️ 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
9. 9.True or false: a steel plate is translucent. (a) True (b) False
10. 10.🔦 Which of these is opaque? (a) your hand (b) clear glass (c) oily paper (d) air
11. 11.🔦 Which of these is opaque? (a) clear plastic film (b) clean water (c) butter paper (d) a brick
12. 12.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a clock to check (c) chalk to mark shadows (d) a battery cell
13. 13.🔦 Which of these is transparent? (a) butter paper (b) a book (c) clear glass (d) a steel plate
14. 14.🔦 Which of these is translucent? (a) a steel plate (b) oily paper (c) clear plastic film (d) a brick
15. 15.True or false: chalk to mark shadows is not needed for the shadow clock. (a) True (b) False
16. 16.🔦 Which of these is transparent? (a) frosted glass (b) clear plastic film (c) a wooden board (d) a brick
17. 17.🧺 Which of these is not needed for the shadow clock? (a) a clock to check (b) a straight stick (c) chalk to mark shadows (d) a battery cell
18. 18.🔮 Predict: on a fully cloudy day, the sundial ___. (a) works better (b) shows two times (c) does not work well (d) runs faster
19. 19.🧺 Which of these is needed for the shadow clock? (a) a mirror (b) a magnet (c) chalk to mark shadows (d) a battery cell
20. 20.🧺 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) yeast
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 measure it (c) we keep it the same
22. 22.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is kept the same. (a) False (b) True
23. 23.True or false: turmeric powder is needed for the shadow clock. (a) True (b) False
24. 24.🌞 When is a stick’s shadow the shortest? (a) at night (b) around noon (c) early morning (d) late evening
25. 25.🧺 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) turmeric powder
26. 26.🔦 Is clean water opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
27. 27.⚖️ 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
28. 28.🛟 While watching shadows outdoors, what must you never do? (a) wear a cap (b) look straight at the Sun (c) mark with chalk (d) sit in the shade
29. 29.📘 Why does a shadow form? (a) the ground is dark (b) the object is cold (c) light bends round it (d) an object blocks light
30. 30.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a magnet (b) a clock to check (c) a straight stick (d) a sunny open place
31. 31.⚖️ 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
32. 32.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: shadow length is what we measure. (a) False (b) True
33. 33.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “shadow length”? (a) we measure it (b) we change it (c) we keep it the same
34. 34.🔍 Which is the odd one out? (a) a wooden board (b) a steel plate (c) your hand (d) tissue paper
35. 35.🔍 Which is the odd one out? (a) a brick (b) clear plastic film (c) clean water (d) clear glass
36. 36.🔦 Is oily paper opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
37. 37.⚖️ 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) the same stick (d) shadow length
38. 38.🔦 Which of these is opaque? (a) clear plastic film (b) air (c) butter paper (d) a wooden board
39. 39.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) a clock to check (c) a straight stick (d) a balloon
40. 40.True or false: a balloon is needed for the shadow clock. (a) True (b) False

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