Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 627 · 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 sunny open place for the shadow clock? (a) not needed (b) needed
2. 2.🛟 What should you wear for a long time in the hot sun? (a) a woollen sweater (b) a raincoat (c) nothing on your head (d) a cap or hat
3. 3.📘 Why does a shadow form? (a) an object blocks light (b) light bends round it (c) the object is cold (d) the ground is dark
4. 4.🔍 Which is the odd one out? (a) a wooden board (b) a brick (c) butter paper (d) a book
5. 5.🧺 Do we need chalk to mark shadows for the shadow clock? (a) not needed (b) needed
6. 6.True or false: a battery cell is needed for the shadow clock. (a) True (b) False
7. 7.True or false: chalk to mark shadows is not needed for the shadow clock. (a) True (b) False
8. 8.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) a clock to check (c) chalk to mark shadows (d) turmeric powder
9. 9.⚖️ 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 same stick (d) the time of day
10. 10.True or false: a steel plate is transparent. (a) True (b) False
11. 11.🔍 Which is the odd one out? (a) clean water (b) clear glass (c) clear plastic film (d) frosted glass
12. 12.🔮 Predict: on a fully cloudy day, the sundial ___. (a) works better (b) does not work well (c) runs faster (d) shows two times
13. 13.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: shadow length is what we measure. (a) True (b) False
14. 14.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) round (b) short (c) missing (d) long
15. 15.⚖️ 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
16. 16.⚖️ 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
17. 17.🔦 Which of these is translucent? (a) clean water (b) a steel plate (c) a wooden board (d) butter paper
18. 18.🔍 Which is the odd one out? (a) frosted glass (b) butter paper (c) a steel plate (d) tissue paper
19. 19.True or false: a steel plate is opaque. (a) False (b) True
20. 20.🧺 Which of these is needed for the shadow clock? (a) a clock to check (b) a magnet (c) yeast (d) a battery cell
21. 21.🛟 While watching shadows outdoors, what must you never do? (a) wear a cap (b) sit in the shade (c) look straight at the Sun (d) mark with chalk
22. 22.🔦 Which of these is opaque? (a) a brick (b) air (c) clear plastic film (d) clear glass
23. 23.🔦 Is clean water opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
24. 24.🔍 Which is the odd one out? (a) a wooden board (b) butter paper (c) tissue paper (d) oily paper
25. 25.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same spot is what we measure. (a) True (b) False
26. 26.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) the stick kept upright (b) the time of day (c) the same spot (d) shadow length
27. 27.True or false: chalk to mark shadows is needed for the shadow clock. (a) False (b) True
28. 28.⚖️ 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
29. 29.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is kept the same? (a) shadow length (b) the same spot (c) the time of day
30. 30.🔦 Which of these is translucent? (a) tissue paper (b) a wooden board (c) a book (d) clear plastic film
31. 31.🧺 Which of these is needed for the shadow clock? (a) a magnet (b) a balloon (c) yeast (d) chalk to mark shadows
32. 32.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) turmeric powder (c) a straight stick (d) a clock to check
33. 33.🔦 Is frosted glass opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
34. 34.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) up (b) north (c) west (d) east
35. 35.🔦 Which of these is opaque? (a) a book (b) clear glass (c) air (d) clear plastic film
36. 36.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same spot”? (a) we keep it the same (b) we measure it (c) we change it
37. 37.⚖️ 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 change it (c) we keep it the same
38. 38.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) a clock to check (c) a straight stick (d) yeast
39. 39.🧺 Which of these is needed for the shadow clock? (a) a balloon (b) a battery cell (c) a magnet (d) a straight stick
40. 40.🌍 Why does the stick’s shadow move during the day? (a) the ground slides (b) the stick grows (c) the stick walks (d) Earth keeps spinning

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