Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 247 · 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 the one thing we change? (a) the stick kept upright (b) shadow length (c) the time of day (d) the same stick
2. 2.True or false: butter paper is transparent. (a) True (b) False
3. 3.⚖️ 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
4. 4.True or false: chalk to mark shadows is not needed for the shadow clock. (a) False (b) True
5. 5.🔦 Which of these is opaque? (a) butter paper (b) a book (c) air (d) frosted glass
6. 6.⚖️ 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) True (b) False
7. 7.True or false: turmeric powder is not needed for the shadow clock. (a) False (b) True
8. 8.🧺 Which of these is needed for the shadow clock? (a) turmeric powder (b) a sunny open place (c) a battery cell (d) a mirror
9. 9.True or false: air is opaque. (a) True (b) False
10. 10.🔦 Is a wooden board opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
11. 11.🧺 Do we need a mirror for the shadow clock? (a) needed (b) not needed
12. 12.🧺 Which of these is needed for the shadow clock? (a) a balloon (b) a battery cell (c) a magnet (d) a clock to check
13. 13.⚖️ 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
14. 14.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: shadow length is what we measure. (a) False (b) True
15. 15.True or false: chalk to mark shadows is needed for the shadow clock. (a) True (b) False
16. 16.🔦 Is tissue paper opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
17. 17.🧺 Do we need chalk to mark shadows for the shadow clock? (a) not needed (b) needed
18. 18.🔦 Which of these is transparent? (a) clear glass (b) a steel plate (c) a book (d) tissue paper
19. 19.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) shadow length (b) the same spot (c) the same stick (d) the time of day
20. 20.⚖️ 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
21. 21.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same stick”? (a) we measure it (b) we keep it the same (c) we change it
22. 22.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) a sunny open place (c) a balloon (d) a clock to check
23. 23.🔦 Which of these is translucent? (a) air (b) a brick (c) a book (d) butter paper
24. 24.🔍 Which is the odd one out? (a) your hand (b) clear plastic film (c) a steel plate (d) a wooden board
25. 25.🧺 Which of these is needed for the shadow clock? (a) a magnet (b) a balloon (c) a straight stick (d) a battery cell
26. 26.True or false: a wooden board is translucent. (a) False (b) True
27. 27.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a magnet (b) chalk to mark shadows (c) a sunny open place (d) a clock to check
28. 28.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) a balloon (c) a straight stick (d) chalk to mark shadows
29. 29.🛟 While watching shadows outdoors, what must you never do? (a) look straight at the Sun (b) sit in the shade (c) mark with chalk (d) wear a cap
30. 30.🔦 Which of these is transparent? (a) a book (b) frosted glass (c) a steel plate (d) clear plastic film
31. 31.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) yeast (c) a clock to check (d) a straight stick
32. 32.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) chalk to mark shadows (c) turmeric powder (d) a sunny open place
33. 33.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) long (b) missing (c) short (d) round
34. 34.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) smaller (b) brighter (c) coloured (d) bigger
35. 35.🕰️ What is a sundial used for? (a) measuring rain (b) weighing things (c) making rainbows (d) telling the time
36. 36.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a mirror (c) a sunny open place (d) a straight stick
37. 37.True or false: turmeric powder is needed for the shadow clock. (a) False (b) True
38. 38.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) east (b) up (c) west (d) north
39. 39.🔦 Which of these is translucent? (a) clean water (b) a brick (c) clear plastic film (d) tissue paper
40. 40.🌍 Why does the stick’s shadow move during the day? (a) the stick grows (b) Earth keeps spinning (c) the ground slides (d) the stick walks

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