Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 325 · 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 of these is not needed for the shadow clock? (a) a clock to check (b) a sunny open place (c) chalk to mark shadows (d) a battery cell
2. 2.🛟 What should you wear for a long time in the hot sun? (a) a raincoat (b) a woollen sweater (c) a cap or hat (d) nothing on your head
3. 3.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) long (b) round (c) short (d) missing
4. 4.True or false: your hand is opaque. (a) True (b) False
5. 5.🔦 Is a wooden board opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
6. 6.🔍 Which is the odd one out? (a) clean water (b) clear glass (c) your hand (d) air
7. 7.🔦 Which of these is opaque? (a) butter paper (b) air (c) frosted glass (d) a book
8. 8.⚖️ 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) False (b) True
9. 9.True or false: a magnet is not needed for the shadow clock. (a) False (b) True
10. 10.⚖️ 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
11. 11.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) north (b) west (c) up (d) east
12. 12.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a balloon (c) chalk to mark shadows (d) a straight stick
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) True (b) False
14. 14.🧺 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 magnet (d) chalk to mark shadows
15. 15.True or false: frosted glass is transparent. (a) False (b) True
16. 16.🔦 Which of these is translucent? (a) a wooden board (b) air (c) frosted glass (d) a book
17. 17.True or false: a battery cell is needed for the shadow clock. (a) True (b) False
18. 18.🔦 Is your hand opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
19. 19.True or false: a book is translucent. (a) True (b) False
20. 20.📘 Why does a shadow form? (a) the object is cold (b) the ground is dark (c) an object blocks light (d) light bends round it
21. 21.🛟 While watching shadows outdoors, what must you never do? (a) mark with chalk (b) wear a cap (c) look straight at the Sun (d) sit in the shade
22. 22.⚖️ 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
23. 23.⚖️ 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 same stick (c) the time of day (d) shadow length
24. 24.🔍 Which is the odd one out? (a) clear glass (b) air (c) oily paper (d) clear plastic film
25. 25.⚖️ 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 measure it (c) we keep it the same
26. 26.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) turmeric powder (b) chalk to mark shadows (c) a straight stick (d) a clock to check
27. 27.🔦 Which of these is opaque? (a) clear plastic film (b) frosted glass (c) a steel plate (d) butter paper
28. 28.🌍 Why does the stick’s shadow move during the day? (a) the stick grows (b) the stick walks (c) the ground slides (d) Earth keeps spinning
29. 29.🔍 Which is the odd one out? (a) a wooden board (b) air (c) clean water (d) clear glass
30. 30.⚖️ 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
31. 31.🔍 Which is the odd one out? (a) a steel plate (b) a brick (c) a book (d) clear plastic film
32. 32.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) smaller (b) brighter (c) bigger (d) coloured
33. 33.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is the one thing we change? (a) the same stick (b) the same spot (c) the time of day (d) shadow length
34. 34.🔍 Which is the odd one out? (a) butter paper (b) oily paper (c) tissue paper (d) a steel plate
35. 35.🔍 Which is the odd one out? (a) clear plastic film (b) a brick (c) clean water (d) clear glass
36. 36.🔮 Predict: on a fully cloudy day, the sundial ___. (a) runs faster (b) does not work well (c) works better (d) shows two times
37. 37.🔦 Is clear glass opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
38. 38.🔦 Which of these is translucent? (a) air (b) oily paper (c) a brick (d) clean water
39. 39.🧺 Do we need a balloon for the shadow clock? (a) not needed (b) needed
40. 40.🧺 Which of these is needed for the shadow clock? (a) a battery cell (b) a sunny open place (c) a mirror (d) a balloon

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