Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 472 · 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.🧺 Do we need a mirror for the shadow clock? (a) needed (b) not needed
2. 2.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) coloured (b) brighter (c) bigger (d) smaller
3. 3.🛟 While watching shadows outdoors, what must you never do? (a) wear a cap (b) mark with chalk (c) look straight at the Sun (d) sit in the shade
4. 4.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) a straight stick (c) turmeric powder (d) a clock to check
5. 5.⚖️ 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
6. 6.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a battery cell (b) a straight stick (c) chalk to mark shadows (d) a sunny open place
7. 7.🛟 What should you wear for a long time in the hot sun? (a) a raincoat (b) a cap or hat (c) a woollen sweater (d) nothing on your head
8. 8.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is the one thing we change? (a) shadow length (b) the same spot (c) the time of day (d) the same stick
9. 9.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) west (b) east (c) north (d) up
10. 10.⚖️ 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
11. 11.📘 Why does a shadow form? (a) the ground is dark (b) light bends round it (c) an object blocks light (d) the object is cold
12. 12.🧺 Which of these is needed for the shadow clock? (a) turmeric powder (b) a sunny open place (c) a mirror (d) yeast
13. 13.⚖️ 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
14. 14.🔦 Is frosted glass opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
15. 15.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a sunny open place (c) a balloon (d) chalk to mark shadows
16. 16.🧺 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 sunny open place
17. 17.True or false: a straight stick is not needed for the shadow clock. (a) False (b) True
18. 18.🌍 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
19. 19.True or false: turmeric powder is not needed for the shadow clock. (a) False (b) True
20. 20.True or false: a brick is transparent. (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 time of day”? (a) we change it (b) we measure it (c) we keep it the same
22. 22.🔮 Predict: on a fully cloudy day, the sundial ___. (a) runs faster (b) shows two times (c) does not work well (d) works better
23. 23.🔦 Which of these is opaque? (a) butter paper (b) air (c) a wooden board (d) clear plastic film
24. 24.True or false: tissue paper is transparent. (a) False (b) True
25. 25.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) the time of day (b) the same spot (c) the stick kept upright (d) shadow length
26. 26.🔦 Is a brick opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
27. 27.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “shadow length”? (a) we change it (b) we measure it (c) we keep it the same
28. 28.⚖️ 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
29. 29.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) a sunny open place (c) a straight stick (d) turmeric powder
30. 30.🧺 Which of these is needed for the shadow clock? (a) turmeric powder (b) chalk to mark shadows (c) a battery cell (d) a magnet
31. 31.⚖️ 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
32. 32.🧺 Do we need yeast for the shadow clock? (a) not needed (b) needed
33. 33.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) chalk to mark shadows (c) a straight stick (d) a balloon
34. 34.True or false: a clock to check is not needed for the shadow clock. (a) False (b) True
35. 35.🔦 Is butter paper opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
36. 36.🔍 Which is the odd one out? (a) oily paper (b) a brick (c) butter paper (d) frosted glass
37. 37.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same spot is kept the same. (a) False (b) True
38. 38.🧺 Do we need a magnet for the shadow clock? (a) needed (b) not needed
39. 39.🧺 Which of these is not needed for the shadow clock? (a) yeast (b) a straight stick (c) a sunny open place (d) chalk to mark shadows
40. 40.⚖️ 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

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