Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 524 · 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 kept the same? (a) the time of day (b) the same stick (c) shadow length
2. 2.🧺 Which of these is needed for the shadow clock? (a) a balloon (b) a battery cell (c) chalk to mark shadows (d) a mirror
3. 3.🧺 Which of these is needed for the shadow clock? (a) yeast (b) a mirror (c) a clock to check (d) a battery cell
4. 4.🕰️ What is a sundial used for? (a) telling the time (b) measuring rain (c) making rainbows (d) weighing things
5. 5.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) a sunny open place (c) a balloon (d) a clock to check
6. 6.🧺 Which of these is needed for the shadow clock? (a) a mirror (b) a battery cell (c) a sunny open place (d) a magnet
7. 7.⚖️ 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 measure it (c) we change it
8. 8.⚖️ 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
9. 9.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: shadow length is kept the same. (a) False (b) True
10. 10.🔮 Predict: on a fully cloudy day, the sundial ___. (a) works better (b) runs faster (c) shows two times (d) does not work well
11. 11.🔍 Which is the odd one out? (a) butter paper (b) your hand (c) frosted glass (d) tissue paper
12. 12.🔦 Is butter paper opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
13. 13.🛟 While watching shadows outdoors, what must you never do? (a) wear a cap (b) sit in the shade (c) mark with chalk (d) look straight at the Sun
14. 14.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) round (b) short (c) long (d) missing
15. 15.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) smaller (b) coloured (c) bigger (d) brighter
16. 16.⚖️ 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) False (b) True
17. 17.True or false: a straight stick is not needed for the shadow clock. (a) True (b) False
18. 18.True or false: chalk to mark shadows is needed for the shadow clock. (a) True (b) False
19. 19.🧺 Which of these is needed for the shadow clock? (a) turmeric powder (b) a mirror (c) a straight stick (d) a magnet
20. 20.🧺 Do we need a sunny open place for the shadow clock? (a) needed (b) not needed
21. 21.🔍 Which is the odd one out? (a) a brick (b) frosted glass (c) oily paper (d) tissue paper
22. 22.True or false: a mirror is not needed for the shadow clock. (a) False (b) True
23. 23.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is kept the same. (a) True (b) False
24. 24.🧺 Do we need a mirror for the shadow clock? (a) not needed (b) needed
25. 25.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) turmeric powder (c) chalk to mark shadows (d) a straight stick
26. 26.True or false: turmeric powder is needed for the shadow clock. (a) True (b) False
27. 27.🔍 Which is the odd one out? (a) your hand (b) tissue paper (c) a steel plate (d) a book
28. 28.🔍 Which is the odd one out? (a) tissue paper (b) frosted glass (c) a book (d) butter paper
29. 29.🛟 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
30. 30.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the stick kept upright”? (a) we change it (b) we keep it the same (c) we measure it
31. 31.📘 Why does a shadow form? (a) the object is cold (b) an object blocks light (c) the ground is dark (d) light bends round it
32. 32.🧺 Do we need a straight stick for the shadow clock? (a) needed (b) not needed
33. 33.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a straight stick (c) a sunny open place (d) a battery cell
34. 34.🧺 Do we need a magnet for the shadow clock? (a) needed (b) not needed
35. 35.🌍 Why does the stick’s shadow move during the day? (a) the stick walks (b) the ground slides (c) the stick grows (d) Earth keeps spinning
36. 36.True or false: a balloon is needed for the shadow clock. (a) True (b) False
37. 37.🔦 Is tissue paper opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
38. 38.🧺 Do we need turmeric powder for the shadow clock? (a) needed (b) not needed
39. 39.🌞 When is a stick’s shadow the shortest? (a) at night (b) late evening (c) early morning (d) around noon
40. 40.🔦 Which of these is transparent? (a) butter paper (b) frosted glass (c) oily paper (d) air

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