Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 753 · 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? What do we do with “the same stick”? (a) we keep it the same (b) we change it (c) we measure it
2. 2.🛟 While watching shadows outdoors, what must you never do? (a) look straight at the Sun (b) sit in the shade (c) wear a cap (d) mark with chalk
3. 3.True or false: a sunny open place is not needed for the shadow clock. (a) True (b) False
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.🧺 Do we need yeast for the shadow clock? (a) not needed (b) needed
6. 6.⚖️ 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
7. 7.🧺 Do we need a sunny open place for the shadow clock? (a) not needed (b) needed
8. 8.🧺 Which of these is needed for the shadow clock? (a) a battery cell (b) a balloon (c) a sunny open place (d) yeast
9. 9.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) east (b) north (c) up (d) west
10. 10.🔦 Which of these is translucent? (a) air (b) clear plastic film (c) oily paper (d) a steel plate
11. 11.🔍 Which is the odd one out? (a) oily paper (b) frosted glass (c) tissue paper (d) clean water
12. 12.🕰️ What is a sundial used for? (a) weighing things (b) measuring rain (c) telling the time (d) making rainbows
13. 13.⚖️ 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
14. 14.🌍 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
15. 15.⚖️ 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 change it (c) we measure it
16. 16.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the stick kept upright is the one thing we change. (a) False (b) True
17. 17.🧺 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 sunny open place
18. 18.⚖️ 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) the time of day (d) shadow length
19. 19.🧺 Do we need a battery cell for the shadow clock? (a) not needed (b) needed
20. 20.🔦 Is butter paper opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
21. 21.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) a clock to check (c) turmeric powder (d) a straight stick
22. 22.🧺 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 clock to check (d) a magnet
23. 23.True or false: clean water is transparent. (a) True (b) False
24. 24.True or false: chalk to mark shadows is needed for the shadow clock. (a) False (b) True
25. 25.🧺 Do we need a balloon for the shadow clock? (a) needed (b) not needed
26. 26.🌞 When is a stick’s shadow the shortest? (a) at night (b) late evening (c) early morning (d) around noon
27. 27.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) short (b) round (c) long (d) missing
28. 28.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) a battery cell (c) a clock to check (d) a straight stick
29. 29.True or false: clean water is translucent. (a) True (b) False
30. 30.True or false: a balloon is needed for the shadow clock. (a) True (b) False
31. 31.🔦 Is air opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
32. 32.🧺 Do we need turmeric powder for the shadow clock? (a) needed (b) not needed
33. 33.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is what we measure. (a) True (b) False
34. 34.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same spot is what we measure. (a) False (b) True
35. 35.🔦 Is your hand opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
36. 36.True or false: your hand is opaque. (a) False (b) True
37. 37.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) the stick kept upright (b) shadow length (c) the time of day (d) the same spot
38. 38.🧺 Which of these is needed for the shadow clock? (a) yeast (b) a clock to check (c) a battery cell (d) turmeric powder
39. 39.🧺 Which of these is not needed for the shadow clock? (a) a battery cell (b) a straight stick (c) a sunny open place (d) a clock to check
40. 40.True or false: a battery cell is needed for the shadow clock. (a) True (b) False

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