Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 469 · 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 of these is not needed for the shadow clock? (a) yeast (b) chalk to mark shadows (c) a sunny open place (d) a clock to check
2. 2.🔦 Is a steel plate opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
3. 3.True or false: a straight stick is not needed for the shadow clock. (a) True (b) False
4. 4.🔦 Which of these is transparent? (a) a wooden board (b) a book (c) clean water (d) a steel plate
5. 5.True or false: a sunny open place is not needed for the shadow clock. (a) True (b) False
6. 6.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is what we measure. (a) True (b) False
7. 7.🛟 What should you wear for a long time in the hot sun? (a) a woollen sweater (b) nothing on your head (c) a cap or hat (d) a raincoat
8. 8.🧺 Which of these is needed for the shadow clock? (a) a battery cell (b) chalk to mark shadows (c) turmeric powder (d) a mirror
9. 9.🔍 Which is the odd one out? (a) clear glass (b) clean water (c) clear plastic film (d) butter paper
10. 10.🧺 Which of these is needed for the shadow clock? (a) turmeric powder (b) a balloon (c) a straight stick (d) yeast
11. 11.⚖️ 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) shadow length (d) the same stick
12. 12.🧺 Do we need a sunny open place for the shadow clock? (a) needed (b) not needed
13. 13.⚖️ 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 time of day (d) the same spot
14. 14.🛟 While watching shadows outdoors, what must you never do? (a) look straight at the Sun (b) mark with chalk (c) sit in the shade (d) wear a cap
15. 15.🧺 Do we need a magnet for the shadow clock? (a) not needed (b) needed
16. 16.🔦 Is clear glass opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
17. 17.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) yeast (b) chalk to mark shadows (c) a clock to check (d) a sunny open place
18. 18.🔍 Which is the odd one out? (a) clear glass (b) clean water (c) a brick (d) clear plastic film
19. 19.🔦 Which of these is opaque? (a) butter paper (b) clean water (c) air (d) a wooden board
20. 20.True or false: a book is transparent. (a) True (b) False
21. 21.🔦 Is a book opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
22. 22.🔍 Which is the odd one out? (a) clear plastic film (b) clear glass (c) clean water (d) a steel plate
23. 23.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a battery cell (b) chalk to mark shadows (c) a sunny open place (d) a clock to check
24. 24.🔦 Which of these is transparent? (a) clear plastic film (b) your hand (c) oily paper (d) tissue paper
25. 25.⚖️ 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 keep it the same (c) we change it
26. 26.True or false: a clock to check is needed for the shadow clock. (a) True (b) False
27. 27.⚖️ 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
28. 28.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) short (b) long (c) round (d) missing
29. 29.⚖️ 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 keep it the same (c) we change it
30. 30.🔍 Which is the odd one out? (a) frosted glass (b) air (c) butter paper (d) oily paper
31. 31.True or false: turmeric powder is not needed for the shadow clock. (a) True (b) False
32. 32.🧺 Do we need a straight stick for the shadow clock? (a) needed (b) not needed
33. 33.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the stick kept upright”? (a) we change it (b) we measure it (c) we keep it the same
34. 34.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a magnet (c) a straight stick (d) a sunny open place
35. 35.🔍 Which is the odd one out? (a) clear plastic film (b) a wooden board (c) clean water (d) clear glass
36. 36.🔦 Is your hand opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
37. 37.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) brighter (b) smaller (c) bigger (d) coloured
38. 38.True or false: a balloon is not needed for the shadow clock. (a) True (b) False
39. 39.🧺 Which of these is needed for the shadow clock? (a) a balloon (b) a mirror (c) a magnet (d) a clock to check
40. 40.🔦 Is clear plastic film opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent

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