Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 512 · 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.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) round (b) short (c) missing (d) long
2. 2.🌍 Why does the stick’s shadow move during the day? (a) the stick walks (b) Earth keeps spinning (c) the stick grows (d) the ground slides
3. 3.🔍 Which is the odd one out? (a) a wooden board (b) a book (c) a steel plate (d) clean water
4. 4.🛟 What should you wear for a long time in the hot sun? (a) a woollen sweater (b) a cap or hat (c) a raincoat (d) nothing on your head
5. 5.🧺 Which of these is needed for the shadow clock? (a) a battery cell (b) a magnet (c) yeast (d) a straight stick
6. 6.🧺 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 mirror (d) a clock to check
7. 7.🔦 Which of these is translucent? (a) your hand (b) a steel plate (c) a brick (d) oily paper
8. 8.🔦 Is clear glass opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
9. 9.⚖️ 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
10. 10.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is the one thing we change? (a) the stick kept upright (b) the time of day (c) the same stick (d) the same spot
11. 11.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the time of day”? (a) we measure it (b) we change it (c) we keep it the same
12. 12.True or false: chalk to mark shadows is not needed for the shadow clock. (a) True (b) False
13. 13.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a balloon (c) a sunny open place (d) chalk to mark shadows
14. 14.🧺 Do we need yeast for the shadow clock? (a) not needed (b) needed
15. 15.True or false: a straight stick is not needed for the shadow clock. (a) True (b) False
16. 16.🔦 Is tissue paper opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
17. 17.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) a sunny open place (c) turmeric powder (d) chalk to mark shadows
18. 18.True or false: oily paper is transparent. (a) True (b) False
19. 19.True or false: a balloon is not needed for the shadow clock. (a) False (b) True
20. 20.🔦 Which of these is translucent? (a) a wooden board (b) clear glass (c) a book (d) tissue paper
21. 21.🧺 Which of these is not needed for the shadow clock? (a) a mirror (b) a sunny open place (c) a straight stick (d) chalk to mark shadows
22. 22.🔦 Is a wooden board opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
23. 23.True or false: a wooden board is opaque. (a) False (b) True
24. 24.🕰️ What is a sundial used for? (a) weighing things (b) measuring rain (c) telling the time (d) making rainbows
25. 25.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) up (b) north (c) west (d) east
26. 26.🛟 While watching shadows outdoors, what must you never do? (a) mark with chalk (b) sit in the shade (c) wear a cap (d) look straight at the Sun
27. 27.⚖️ 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
28. 28.🔦 Which of these is transparent? (a) a steel plate (b) tissue paper (c) clear plastic film (d) oily paper
29. 29.🧺 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) yeast (d) a straight stick
30. 30.⚖️ 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
31. 31.🔦 Which of these is opaque? (a) a steel plate (b) air (c) tissue paper (d) clean water
32. 32.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a battery cell (b) a clock to check (c) a straight stick (d) a sunny open place
33. 33.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) a magnet (c) chalk to mark shadows (d) a straight stick
34. 34.🔦 Is air opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
35. 35.True or false: a clock to check is not needed for the shadow clock. (a) True (b) False
36. 36.True or false: a mirror is not needed for the shadow clock. (a) False (b) True
37. 37.⚖️ 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 stick kept upright (c) shadow length
38. 38.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same spot is what we measure. (a) True (b) False
39. 39.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) chalk to mark shadows (c) turmeric powder (d) a sunny open place
40. 40.🔦 Which of these is translucent? (a) your hand (b) frosted glass (c) a book (d) a brick

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