Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 222 · 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.🌍 Why does the stick’s shadow move during the day? (a) the stick walks (b) the stick grows (c) the ground slides (d) Earth keeps spinning
2. 2.🧺 Do we need turmeric powder for the shadow clock? (a) needed (b) not needed
3. 3.🧺 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 mirror (d) chalk to mark shadows
4. 4.🧺 Do we need a clock to check for the shadow clock? (a) needed (b) not needed
5. 5.🧺 Do we need a magnet for the shadow clock? (a) needed (b) not needed
6. 6.🔦 Is a wooden board opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
7. 7.⚖️ 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) shadow length (d) the same spot
8. 8.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a balloon (b) a clock to check (c) chalk to mark shadows (d) a straight stick
9. 9.🌞 When is a stick’s shadow the shortest? (a) at night (b) late evening (c) early morning (d) around noon
10. 10.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) coloured (b) brighter (c) bigger (d) smaller
11. 11.⚖️ 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
12. 12.🧺 Do we need chalk to mark shadows for the shadow clock? (a) not needed (b) needed
13. 13.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is what we measure. (a) False (b) True
14. 14.🔦 Which of these is transparent? (a) a book (b) oily paper (c) clear glass (d) frosted glass
15. 15.⚖️ 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 stick kept upright (c) the same spot (d) shadow length
16. 16.🔦 Which of these is translucent? (a) a wooden board (b) tissue paper (c) a steel plate (d) clean water
17. 17.🧺 Which of these is needed for the shadow clock? (a) a magnet (b) a battery cell (c) a mirror (d) chalk to mark shadows
18. 18.🔍 Which is the odd one out? (a) oily paper (b) a book (c) a wooden board (d) a brick
19. 19.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) a sunny open place (c) a magnet (d) a clock to check
20. 20.True or false: a sunny open place is needed for the shadow clock. (a) True (b) False
21. 21.📘 Why does a shadow form? (a) the object is cold (b) an object blocks light (c) light bends round it (d) the ground is dark
22. 22.🛟 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
23. 23.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a battery cell (c) a sunny open place (d) a straight stick
24. 24.⚖️ 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
25. 25.🔍 Which is the odd one out? (a) your hand (b) frosted glass (c) oily paper (d) butter paper
26. 26.🔦 Which of these is transparent? (a) oily paper (b) air (c) your hand (d) a steel plate
27. 27.🔦 Which of these is opaque? (a) air (b) a wooden board (c) oily paper (d) tissue paper
28. 28.True or false: turmeric powder is not needed for the shadow clock. (a) True (b) False
29. 29.🧺 Do we need a battery cell for the shadow clock? (a) needed (b) not needed
30. 30.🔍 Which is the odd one out? (a) a brick (b) a steel plate (c) clear glass (d) a book
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) True (b) False
32. 32.🔦 Is tissue paper opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
33. 33.🔍 Which is the odd one out? (a) air (b) clear glass (c) clear plastic film (d) butter paper
34. 34.🔦 Is a brick opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
35. 35.🧺 Do we need a balloon for the shadow clock? (a) needed (b) not needed
36. 36.True or false: a wooden board is translucent. (a) True (b) False
37. 37.🔮 Predict: on a fully cloudy day, the sundial ___. (a) works better (b) runs faster (c) does not work well (d) shows two times
38. 38.⚖️ 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 keep it the same (c) we measure it
39. 39.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) yeast (b) a straight stick (c) a sunny open place (d) chalk to mark shadows
40. 40.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) north (b) east (c) west (d) up

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