Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 775 · 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: shadow length is what we measure. (a) False (b) True
2. 2.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) short (b) round (c) missing (d) long
3. 3.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) turmeric powder (c) a straight stick (d) a sunny open place
4. 4.⚖️ 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 keep it the same (c) we change it
5. 5.🧺 Which of these is needed for the shadow clock? (a) a battery cell (b) a clock to check (c) a balloon (d) a mirror
6. 6.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the stick kept upright is kept the same. (a) True (b) False
7. 7.⚖️ 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 measure it (c) we change it
8. 8.⚖️ 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
9. 9.🧺 Do we need turmeric powder for the shadow clock? (a) not needed (b) needed
10. 10.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) a straight stick (c) chalk to mark shadows (d) a battery cell
11. 11.🌞 When is a stick’s shadow the shortest? (a) at night (b) early morning (c) late evening (d) around noon
12. 12.🧺 Do we need a mirror for the shadow clock? (a) not needed (b) needed
13. 13.🧺 Which of these is not needed for the shadow clock? (a) a balloon (b) a sunny open place (c) a straight stick (d) a clock to check
14. 14.🧺 Do we need a sunny open place for the shadow clock? (a) needed (b) not needed
15. 15.🔦 Is air opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
16. 16.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same spot”? (a) we keep it the same (b) we measure it (c) we change it
17. 17.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) chalk to mark shadows (c) a balloon (d) a clock to check
18. 18.🔦 Which of these is translucent? (a) a wooden board (b) oily paper (c) your hand (d) a steel plate
19. 19.🧺 Which of these is needed for the shadow clock? (a) a balloon (b) yeast (c) a sunny open place (d) a battery cell
20. 20.🧺 Which of these is not needed for the shadow clock? (a) a clock to check (b) a mirror (c) chalk to mark shadows (d) a sunny open place
21. 21.🔦 Which of these is opaque? (a) air (b) a steel plate (c) butter paper (d) tissue paper
22. 22.🌍 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
23. 23.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) bigger (b) coloured (c) brighter (d) smaller
24. 24.🧺 Do we need a magnet for the shadow clock? (a) needed (b) not needed
25. 25.True or false: a balloon is needed for the shadow clock. (a) False (b) True
26. 26.True or false: a straight stick is needed for the shadow clock. (a) False (b) True
27. 27.🧺 Do we need a straight stick for the shadow clock? (a) not needed (b) needed
28. 28.🔦 Which of these is opaque? (a) clean water (b) a wooden board (c) butter paper (d) air
29. 29.True or false: frosted glass is translucent. (a) False (b) True
30. 30.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) up (b) west (c) north (d) east
31. 31.🧺 Which of these is needed for the shadow clock? (a) a balloon (b) yeast (c) chalk to mark shadows (d) a battery cell
32. 32.🛟 What should you wear for a long time in the hot sun? (a) a raincoat (b) a woollen sweater (c) nothing on your head (d) a cap or hat
33. 33.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is the one thing we change? (a) the time of day (b) the same spot (c) the same stick (d) shadow length
34. 34.🧺 Do we need a battery cell for the shadow clock? (a) needed (b) not needed
35. 35.True or false: a magnet is needed for the shadow clock. (a) True (b) False
36. 36.🔍 Which is the odd one out? (a) butter paper (b) a wooden board (c) oily paper (d) frosted glass
37. 37.🕰️ What is a sundial used for? (a) measuring rain (b) telling the time (c) making rainbows (d) weighing things
38. 38.True or false: chalk to mark shadows is not needed for the shadow clock. (a) True (b) False
39. 39.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: shadow length is kept the same. (a) True (b) False
40. 40.🛟 While watching shadows outdoors, what must you never do? (a) sit in the shade (b) mark with chalk (c) wear a cap (d) look straight at the Sun

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