Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 289 · 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 is the odd one out? (a) air (b) clear glass (c) clear plastic film (d) your hand
2. 2.🔮 Predict: on a fully cloudy day, the sundial ___. (a) works better (b) shows two times (c) does not work well (d) runs faster
3. 3.🧺 Do we need turmeric powder for the shadow clock? (a) needed (b) not needed
4. 4.True or false: yeast is needed for the shadow clock. (a) True (b) False
5. 5.⚖️ 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 stick (c) the stick kept upright (d) shadow length
6. 6.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) coloured (b) bigger (c) brighter (d) smaller
7. 7.🧺 Which of these is needed for the shadow clock? (a) chalk to mark shadows (b) a magnet (c) yeast (d) a battery cell
8. 8.🛟 While watching shadows outdoors, what must you never do? (a) look straight at the Sun (b) wear a cap (c) sit in the shade (d) mark with chalk
9. 9.🔍 Which is the odd one out? (a) frosted glass (b) your hand (c) a wooden board (d) a brick
10. 10.🔦 Which of these is opaque? (a) clear glass (b) frosted glass (c) a wooden board (d) oily paper
11. 11.🔦 Is a brick opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
12. 12.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a magnet (c) a sunny open place (d) chalk to mark shadows
13. 13.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) a straight stick (c) a mirror (d) a sunny open place
14. 14.🧺 Do we need a clock to check for the shadow clock? (a) needed (b) not needed
15. 15.True or false: a book is translucent. (a) True (b) False
16. 16.🔦 Is oily paper opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
17. 17.🧺 Do we need a magnet for the shadow clock? (a) not needed (b) needed
18. 18.⚖️ 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
19. 19.🌍 Why does the stick’s shadow move during the day? (a) Earth keeps spinning (b) the ground slides (c) the stick grows (d) the stick walks
20. 20.🧺 Do we need a mirror for the shadow clock? (a) needed (b) not needed
21. 21.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same stick”? (a) we change it (b) we keep it the same (c) we measure it
22. 22.📘 Why does a shadow form? (a) the ground is dark (b) an object blocks light (c) the object is cold (d) light bends round it
23. 23.🧺 Do we need yeast for the shadow clock? (a) not needed (b) needed
24. 24.⚖️ 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) shadow length (c) the same stick (d) the stick kept upright
25. 25.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the stick kept upright is what we measure. (a) True (b) False
26. 26.🧺 Which of these is not needed for the shadow clock? (a) a balloon (b) a straight stick (c) a sunny open place (d) a clock to check
27. 27.True or false: a brick is opaque. (a) False (b) True
28. 28.🔦 Is butter paper opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
29. 29.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is kept the same. (a) False (b) True
30. 30.⚖️ 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
31. 31.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same spot is the one thing we change. (a) False (b) True
32. 32.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a clock to check (c) a battery cell (d) a sunny open place
33. 33.True or false: a mirror is not needed for the shadow clock. (a) False (b) True
34. 34.True or false: a magnet is not needed for the shadow clock. (a) True (b) False
35. 35.🧺 Which of these is needed for the shadow clock? (a) a sunny open place (b) a mirror (c) a magnet (d) a battery cell
36. 36.⚖️ 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
37. 37.🔦 Is air opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
38. 38.🧺 Which of these is needed for the shadow clock? (a) a magnet (b) a mirror (c) a straight stick (d) a balloon
39. 39.🔍 Which is the odd one out? (a) a steel plate (b) a brick (c) oily paper (d) a wooden board
40. 40.🧺 Do we need chalk to mark shadows for the shadow clock? (a) needed (b) not needed

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