Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 892 · 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.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: shadow length is kept the same. (a) False (b) True
2. 2.⚖️ 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) the same spot (c) shadow length
3. 3.⚖️ 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
4. 4.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) long (b) short (c) round (d) missing
5. 5.⚖️ 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) True (b) False
6. 6.🛟 While watching shadows outdoors, what must you never do? (a) mark with chalk (b) look straight at the Sun (c) wear a cap (d) sit in the shade
7. 7.⚖️ 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) False (b) True
8. 8.🛟 What should you wear for a long time in the hot sun? (a) nothing on your head (b) a cap or hat (c) a raincoat (d) a woollen sweater
9. 9.🧺 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) turmeric powder (d) a sunny open place
10. 10.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) yeast (c) a sunny open place (d) chalk to mark shadows
11. 11.True or false: a steel plate is opaque. (a) True (b) False
12. 12.🔦 Is a steel plate opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
13. 13.🔦 Is frosted glass opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
14. 14.🔍 Which is the odd one out? (a) oily paper (b) butter paper (c) clear glass (d) tissue paper
15. 15.🧺 Which of these is needed for the shadow clock? (a) yeast (b) a straight stick (c) turmeric powder (d) a balloon
16. 16.🔍 Which is the odd one out? (a) your hand (b) clear plastic film (c) air (d) clear glass
17. 17.🕰️ What is a sundial used for? (a) making rainbows (b) telling the time (c) measuring rain (d) weighing things
18. 18.🧺 Which of these is needed for the shadow clock? (a) a battery cell (b) a balloon (c) a mirror (d) a sunny open place
19. 19.🧺 Do we need a magnet for the shadow clock? (a) not needed (b) needed
20. 20.🔍 Which is the odd one out? (a) a wooden board (b) oily paper (c) butter paper (d) frosted glass
21. 21.🔦 Is clear plastic film opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
22. 22.⚖️ 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 measure it (c) we change it
23. 23.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) brighter (b) coloured (c) bigger (d) smaller
24. 24.🔦 Is a book opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
25. 25.⚖️ 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 keep it the same (c) we measure it
26. 26.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) a battery cell (c) a clock to check (d) chalk to mark shadows
27. 27.True or false: a sunny open place is not needed for the shadow clock. (a) True (b) False
28. 28.True or false: a brick is opaque. (a) False (b) True
29. 29.True or false: turmeric powder is needed for the shadow clock. (a) False (b) True
30. 30.🔦 Which of these is transparent? (a) butter paper (b) clean water (c) oily paper (d) a book
31. 31.⚖️ 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 spot
32. 32.🧺 Which of these is needed for the shadow clock? (a) a balloon (b) a clock to check (c) a mirror (d) a battery cell
33. 33.🔦 Which of these is transparent? (a) a book (b) butter paper (c) oily paper (d) clear plastic film
34. 34.True or false: yeast is not needed for the shadow clock. (a) True (b) False
35. 35.🔦 Is butter paper opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
36. 36.⚖️ 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
37. 37.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) up (b) east (c) north (d) west
38. 38.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) turmeric powder (c) a clock to check (d) a sunny open place
39. 39.🧺 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
40. 40.🔦 Which of these is opaque? (a) clear glass (b) your hand (c) butter paper (d) oily paper

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