Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 658 · 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? Which of these is kept the same? (a) shadow length (b) the same stick (c) the time of day
2. 2.🔦 Is a book opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
3. 3.🌞 When is a stick’s shadow the shortest? (a) late evening (b) early morning (c) around noon (d) at night
4. 4.True or false: a mirror is not needed for the shadow clock. (a) True (b) False
5. 5.True or false: chalk to mark shadows is not needed for the shadow clock. (a) True (b) False
6. 6.🔦 Which of these is opaque? (a) tissue paper (b) frosted glass (c) clear glass (d) a wooden board
7. 7.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “shadow length”? (a) we keep it the same (b) we change it (c) we measure it
8. 8.🛟 While watching shadows outdoors, what must you never do? (a) wear a cap (b) mark with chalk (c) sit in the shade (d) look straight at the Sun
9. 9.True or false: clear plastic film is translucent. (a) True (b) False
10. 10.🕰️ What is a sundial used for? (a) measuring rain (b) weighing things (c) telling the time (d) making rainbows
11. 11.🔦 Is frosted glass opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
12. 12.🔍 Which is the odd one out? (a) a book (b) clear glass (c) a brick (d) your hand
13. 13.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the stick kept upright is what we measure. (a) False (b) True
14. 14.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) chalk to mark shadows (c) a sunny open place (d) a mirror
15. 15.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) missing (b) long (c) short (d) round
16. 16.⚖️ 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 stick kept upright
17. 17.🧺 Do we need a magnet for the shadow clock? (a) needed (b) not needed
18. 18.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) a clock to check (c) a straight stick (d) a balloon
19. 19.🧺 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) chalk to mark shadows (d) a magnet
20. 20.True or false: a wooden board is translucent. (a) True (b) False
21. 21.True or false: a clock to check is not needed for the shadow clock. (a) True (b) False
22. 22.🧺 Which of these is needed for the shadow clock? (a) a balloon (b) yeast (c) a sunny open place (d) turmeric powder
23. 23.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) a sunny open place (c) a straight stick (d) a magnet
24. 24.⚖️ 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 time of day (c) the stick kept upright (d) shadow length
25. 25.True or false: a magnet is not needed for the shadow clock. (a) False (b) True
26. 26.🔦 Is butter paper opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
27. 27.🔦 Which of these is opaque? (a) oily paper (b) air (c) your hand (d) clean water
28. 28.🧺 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) turmeric powder (d) a straight stick
29. 29.🔦 Is tissue paper opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
30. 30.🔦 Is oily paper opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
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 change it (b) we measure it (c) we keep it the same
32. 32.⚖️ 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 same spot (c) the stick kept upright (d) shadow length
33. 33.🛟 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
34. 34.🔍 Which is the odd one out? (a) clean water (b) butter paper (c) clear glass (d) air
35. 35.🔍 Which is the odd one out? (a) tissue paper (b) butter paper (c) frosted glass (d) a steel plate
36. 36.🔍 Which is the odd one out? (a) air (b) clean water (c) frosted glass (d) clear glass
37. 37.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same stick”? (a) we keep it the same (b) we change it (c) we measure it
38. 38.True or false: a sunny open place is not needed for the shadow clock. (a) True (b) False
39. 39.🔦 Is a steel plate opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
40. 40.True or false: a sunny open place is needed for the shadow clock. (a) False (b) True

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