Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 106 · 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: the stick kept upright is what we measure. (a) True (b) False
2. 2.🌞 When is a stick’s shadow the shortest? (a) at night (b) around noon (c) early morning (d) late evening
3. 3.🧺 Which of these is needed for the shadow clock? (a) a balloon (b) a battery cell (c) yeast (d) a sunny open place
4. 4.🧺 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
5. 5.🔦 Which of these is opaque? (a) frosted glass (b) clear glass (c) a brick (d) oily paper
6. 6.🔍 Which is the odd one out? (a) tissue paper (b) a steel plate (c) oily paper (d) butter paper
7. 7.🧺 Which of these is needed for the shadow clock? (a) a magnet (b) a straight stick (c) a balloon (d) turmeric powder
8. 8.True or false: clear glass is translucent. (a) False (b) True
9. 9.⚖️ 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
10. 10.🧺 Which of these is not needed for the shadow clock? (a) a battery cell (b) chalk to mark shadows (c) a clock to check (d) a straight stick
11. 11.🔦 Which of these is translucent? (a) clear glass (b) a wooden board (c) air (d) tissue paper
12. 12.True or false: chalk to mark shadows is needed for the shadow clock. (a) True (b) False
13. 13.⚖️ 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) True (b) False
14. 14.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) the same stick (b) the time of day (c) the stick kept upright (d) shadow length
15. 15.True or false: a magnet is not needed for the shadow clock. (a) False (b) True
16. 16.🛟 What should you wear for a long time in the hot sun? (a) nothing on your head (b) a woollen sweater (c) a raincoat (d) a cap or hat
17. 17.🔍 Which is the odd one out? (a) frosted glass (b) your hand (c) a wooden board (d) a steel plate
18. 18.True or false: your hand is transparent. (a) False (b) True
19. 19.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) round (b) short (c) long (d) missing
20. 20.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a straight stick (c) a sunny open place (d) a balloon
21. 21.⚖️ 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 same spot (c) shadow length (d) the time of day
22. 22.⚖️ 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 measure it (c) we change it
23. 23.True or false: your hand is translucent. (a) False (b) True
24. 24.⚖️ 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 spot (c) the time of day
25. 25.⚖️ 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
26. 26.⚖️ 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
27. 27.🛟 While watching shadows outdoors, what must you never do? (a) sit in the shade (b) mark with chalk (c) look straight at the Sun (d) wear a cap
28. 28.True or false: frosted glass is transparent. (a) False (b) True
29. 29.🔦 Is a brick opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
30. 30.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is kept the same? (a) the same stick (b) shadow length (c) the time of day
31. 31.🔦 Is a wooden board opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
32. 32.🕰️ What is a sundial used for? (a) making rainbows (b) telling the time (c) measuring rain (d) weighing things
33. 33.🧺 Which of these is not needed for the shadow clock? (a) a clock to check (b) chalk to mark shadows (c) a magnet (d) a straight stick
34. 34.⚖️ 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
35. 35.True or false: a sunny open place is not needed for the shadow clock. (a) True (b) False
36. 36.🔦 Is clear glass opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
37. 37.🧺 Do we need chalk to mark shadows for the shadow clock? (a) not needed (b) needed
38. 38.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) chalk to mark shadows (c) a straight stick (d) a mirror
39. 39.🧺 Do we need a clock to check for the shadow clock? (a) needed (b) not needed
40. 40.True or false: oily paper is translucent. (a) True (b) False

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