Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 984 · 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) your hand (b) oily paper (c) frosted glass (d) tissue paper
2. 2.🔍 Which is the odd one out? (a) a wooden board (b) a steel plate (c) frosted glass (d) your hand
3. 3.⚖️ 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) the stick kept upright (c) the same spot (d) shadow length
4. 4.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same spot is what we measure. (a) False (b) True
5. 5.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the time of day”? (a) we keep it the same (b) we change it (c) we measure it
6. 6.🧺 Which of these is not needed for the shadow clock? (a) a clock to check (b) turmeric powder (c) a sunny open place (d) chalk to mark shadows
7. 7.📘 Why does a shadow form? (a) light bends round it (b) the ground is dark (c) the object is cold (d) an object blocks light
8. 8.🔦 Is a wooden board opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
9. 9.🛟 While watching shadows outdoors, what must you never do? (a) sit in the shade (b) wear a cap (c) look straight at the Sun (d) mark with chalk
10. 10.🌞 When is a stick’s shadow the shortest? (a) at night (b) late evening (c) around noon (d) early morning
11. 11.True or false: frosted glass is transparent. (a) False (b) True
12. 12.⚖️ 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) False (b) True
13. 13.⚖️ 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
14. 14.🔍 Which is the odd one out? (a) a brick (b) clear plastic film (c) a wooden board (d) a steel plate
15. 15.🔦 Which of these is opaque? (a) oily paper (b) clean water (c) a wooden board (d) clear glass
16. 16.🔦 Is a book opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
17. 17.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) a sunny open place (c) chalk to mark shadows (d) a balloon
18. 18.True or false: a straight stick is not needed for the shadow clock. (a) False (b) True
19. 19.🧺 Which of these is needed for the shadow clock? (a) chalk to mark shadows (b) a mirror (c) a balloon (d) a battery cell
20. 20.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) missing (b) short (c) round (d) long
21. 21.🧺 Do we need a sunny open place for the shadow clock? (a) not needed (b) needed
22. 22.🔦 Which of these is translucent? (a) air (b) your hand (c) butter paper (d) a steel plate
23. 23.🧺 Which of these is not needed for the shadow clock? (a) a magnet (b) chalk to mark shadows (c) a sunny open place (d) a clock to check
24. 24.True or false: a sunny open place is needed for the shadow clock. (a) False (b) True
25. 25.True or false: a wooden board is transparent. (a) False (b) True
26. 26.🧺 Which of these is needed for the shadow clock? (a) yeast (b) a magnet (c) a balloon (d) a clock to check
27. 27.True or false: chalk to mark shadows is needed for the shadow clock. (a) True (b) False
28. 28.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) yeast (c) a straight stick (d) a sunny open place
29. 29.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same spot is kept the same. (a) True (b) False
30. 30.🔦 Which of these is transparent? (a) tissue paper (b) clean water (c) frosted glass (d) a book
31. 31.🔦 Which of these is opaque? (a) a steel plate (b) oily paper (c) tissue paper (d) butter paper
32. 32.True or false: a magnet is needed for the shadow clock. (a) True (b) False
33. 33.🧺 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 mirror
34. 34.⚖️ 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
35. 35.🛟 What should you wear for a long time in the hot sun? (a) a cap or hat (b) nothing on your head (c) a raincoat (d) a woollen sweater
36. 36.🧺 Do we need yeast for the shadow clock? (a) not needed (b) needed
37. 37.⚖️ 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) False (b) True
38. 38.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) brighter (b) coloured (c) bigger (d) smaller
39. 39.True or false: a steel plate is opaque. (a) False (b) True
40. 40.🔦 Which of these is translucent? (a) air (b) a steel plate (c) clear plastic film (d) frosted glass

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