Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 46 · 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.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) brighter (b) coloured (c) bigger (d) smaller
2. 2.🛟 While watching shadows outdoors, what must you never do? (a) look straight at the Sun (b) mark with chalk (c) sit in the shade (d) wear a cap
3. 3.🧺 Do we need chalk to mark shadows for the shadow clock? (a) not needed (b) needed
4. 4.🔦 Is a steel plate opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
5. 5.True or false: a straight stick is needed for the shadow clock. (a) True (b) False
6. 6.🧺 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) yeast
7. 7.🔍 Which is the odd one out? (a) butter paper (b) clear plastic film (c) clear glass (d) air
8. 8.📘 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
9. 9.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) east (b) north (c) up (d) west
10. 10.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) a mirror (c) a clock to check (d) chalk to mark shadows
11. 11.🧺 Which of these is needed for the shadow clock? (a) a mirror (b) a straight stick (c) a balloon (d) a magnet
12. 12.True or false: a wooden board is transparent. (a) False (b) True
13. 13.🌍 Why does the stick’s shadow move during the day? (a) the ground slides (b) the stick walks (c) Earth keeps spinning (d) the stick grows
14. 14.True or false: chalk to mark shadows is needed for the shadow clock. (a) False (b) True
15. 15.🔦 Is clear glass opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
16. 16.🔮 Predict: on a fully cloudy day, the sundial ___. (a) runs faster (b) shows two times (c) works better (d) does not work well
17. 17.🔍 Which is the odd one out? (a) tissue paper (b) butter paper (c) your hand (d) frosted glass
18. 18.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) round (b) missing (c) long (d) short
19. 19.🧺 Which of these is needed for the shadow clock? (a) a balloon (b) turmeric powder (c) a clock to check (d) a battery cell
20. 20.True or false: a magnet is needed for the shadow clock. (a) False (b) True
21. 21.🧺 Do we need a battery cell for the shadow clock? (a) not needed (b) needed
22. 22.🔦 Is clear plastic film opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
23. 23.True or false: a steel plate is translucent. (a) False (b) True
24. 24.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “shadow length”? (a) we measure it (b) we keep it the same (c) we change it
25. 25.True or false: chalk to mark shadows is not needed for the shadow clock. (a) True (b) False
26. 26.🔦 Is your hand opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
27. 27.True or false: clear glass is opaque. (a) True (b) False
28. 28.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) shadow length (b) the same stick (c) the stick kept upright (d) the time of day
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) True (b) False
30. 30.⚖️ 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
31. 31.🔦 Which of these is translucent? (a) a brick (b) butter paper (c) a wooden board (d) a steel plate
32. 32.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is kept the same? (a) the same stick (b) shadow length (c) the time of day
33. 33.⚖️ 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
34. 34.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) a straight stick (c) a sunny open place (d) a magnet
35. 35.True or false: turmeric powder is needed for the shadow clock. (a) False (b) True
36. 36.True or false: a straight stick is not needed for the shadow clock. (a) True (b) False
37. 37.⚖️ 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 stick kept upright (c) the same spot (d) shadow length
38. 38.🔍 Which is the odd one out? (a) a wooden board (b) a book (c) your hand (d) tissue paper
39. 39.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the stick kept upright”? (a) we keep it the same (b) we measure it (c) we change it
40. 40.🔦 Which of these is opaque? (a) a wooden board (b) oily paper (c) clean water (d) tissue paper

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