Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 978 · 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.🧺 Which of these is needed for the shadow clock? (a) a sunny open place (b) yeast (c) a magnet (d) a balloon
2. 2.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) the same spot (b) the stick kept upright (c) the same stick (d) shadow length
3. 3.🧺 Do we need a mirror for the shadow clock? (a) needed (b) not needed
4. 4.📘 Why does a shadow form? (a) light bends round it (b) the object is cold (c) an object blocks light (d) the ground is dark
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.⚖️ 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 keep it the same (c) we change it
7. 7.True or false: a steel plate is transparent. (a) False (b) True
8. 8.True or false: butter paper is translucent. (a) True (b) False
9. 9.🔦 Which of these is opaque? (a) frosted glass (b) a wooden board (c) clean water (d) butter paper
10. 10.🧺 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 magnet (d) a clock to check
11. 11.🌍 Why does the stick’s shadow move during the day? (a) the stick walks (b) the ground slides (c) Earth keeps spinning (d) the stick grows
12. 12.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) east (b) north (c) up (d) west
13. 13.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) turmeric powder (b) chalk to mark shadows (c) a straight stick (d) a clock to check
14. 14.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the stick kept upright”? (a) we measure it (b) we change it (c) we keep it the same
15. 15.🛟 While watching shadows outdoors, what must you never do? (a) wear a cap (b) sit in the shade (c) look straight at the Sun (d) mark with chalk
16. 16.🕰️ What is a sundial used for? (a) weighing things (b) measuring rain (c) making rainbows (d) telling the time
17. 17.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) yeast (b) a straight stick (c) a sunny open place (d) a clock to check
18. 18.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) yeast (c) a clock to check (d) chalk to mark shadows
19. 19.⚖️ 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
20. 20.🧺 Which of these is needed for the shadow clock? (a) a clock to check (b) a magnet (c) a mirror (d) a balloon
21. 21.True or false: a steel plate is translucent. (a) False (b) True
22. 22.True or false: chalk to mark shadows is needed for the shadow clock. (a) True (b) False
23. 23.⚖️ 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 change it (c) we keep it the same
24. 24.⚖️ 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
25. 25.🧺 Do we need turmeric powder for the shadow clock? (a) not needed (b) needed
26. 26.True or false: clear plastic film is translucent. (a) True (b) False
27. 27.🔦 Which of these is opaque? (a) a brick (b) clear glass (c) air (d) butter paper
28. 28.⚖️ 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 same stick (d) the time of day
29. 29.🧺 Do we need a magnet for the shadow clock? (a) not needed (b) needed
30. 30.True or false: a straight stick is not needed for the shadow clock. (a) True (b) False
31. 31.⚖️ 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
32. 32.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) a straight stick (c) a sunny open place (d) a magnet
33. 33.🌞 When is a stick’s shadow the shortest? (a) early morning (b) late evening (c) at night (d) around noon
34. 34.True or false: butter paper is opaque. (a) False (b) True
35. 35.True or false: a straight stick is needed for the shadow clock. (a) False (b) True
36. 36.🔦 Which of these is transparent? (a) tissue paper (b) butter paper (c) clear plastic film (d) frosted glass
37. 37.🔦 Is oily paper opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
38. 38.🔦 Which of these is translucent? (a) your hand (b) clear plastic film (c) a brick (d) butter paper
39. 39.🧺 Which of these is needed for the shadow clock? (a) a battery cell (b) a magnet (c) chalk to mark shadows (d) a balloon
40. 40.🧺 Which of these is needed for the shadow clock? (a) a straight stick (b) a magnet (c) a balloon (d) a battery cell

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