Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 276 · 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.True or false: frosted glass is opaque. (a) True (b) False
2. 2.🔦 Is your hand opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
3. 3.True or false: a balloon is not needed for the shadow clock. (a) False (b) True
4. 4.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “shadow length”? (a) we keep it the same (b) we measure it (c) we change it
5. 5.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the time of day”? (a) we measure it (b) we keep it the same (c) we change it
6. 6.🔍 Which is the odd one out? (a) clear plastic film (b) clear glass (c) tissue paper (d) clean water
7. 7.🛟 While watching shadows outdoors, what must you never do? (a) sit in the shade (b) wear a cap (c) mark with chalk (d) look straight at the Sun
8. 8.🧺 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 balloon (d) chalk to mark shadows
9. 9.🔦 Is butter paper opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
10. 10.🔦 Which of these is opaque? (a) frosted glass (b) a wooden board (c) air (d) clean water
11. 11.🔦 Which of these is transparent? (a) butter paper (b) clean water (c) a book (d) your hand
12. 12.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: shadow length is the one thing we change. (a) True (b) False
13. 13.⚖️ 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 change it (c) we measure it
14. 14.🧺 Which of these is not needed for the shadow clock? (a) turmeric powder (b) chalk to mark shadows (c) a straight stick (d) a sunny open place
15. 15.🔦 Is clean water opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
16. 16.True or false: yeast is not needed for the shadow clock. (a) True (b) False
17. 17.True or false: a sunny open place is not needed for the shadow clock. (a) False (b) True
18. 18.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) yeast (b) a clock to check (c) a straight stick (d) chalk to mark shadows
19. 19.🔦 Is frosted glass opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
20. 20.🔍 Which is the odd one out? (a) clear plastic film (b) air (c) clean water (d) a wooden board
21. 21.🧺 Which of these is not needed for the shadow clock? (a) a clock to check (b) a balloon (c) chalk to mark shadows (d) a straight stick
22. 22.🧺 Do we need a sunny open place for the shadow clock? (a) not needed (b) needed
23. 23.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) west (b) up (c) north (d) east
24. 24.🛟 What should you wear for a long time in the hot sun? (a) a cap or hat (b) a raincoat (c) nothing on your head (d) a woollen sweater
25. 25.🧺 Do we need a balloon for the shadow clock? (a) not needed (b) needed
26. 26.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) long (b) missing (c) short (d) round
27. 27.True or false: a mirror is needed for the shadow clock. (a) True (b) False
28. 28.True or false: chalk to mark shadows is not needed for the shadow clock. (a) True (b) False
29. 29.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a magnet (b) a clock to check (c) a straight stick (d) chalk to mark shadows
30. 30.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is the one thing we change? (a) the stick kept upright (b) shadow length (c) the time of day (d) the same spot
31. 31.🔮 Predict: on a fully cloudy day, the sundial ___. (a) does not work well (b) runs faster (c) shows two times (d) works better
32. 32.🔦 Which of these is transparent? (a) a book (b) oily paper (c) clear glass (d) a brick
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) False (b) True
34. 34.⚖️ 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 stick kept upright (c) the time of day
35. 35.🔍 Which is the odd one out? (a) frosted glass (b) a brick (c) a wooden board (d) your hand
36. 36.🧺 Do we need turmeric powder for the shadow clock? (a) needed (b) not needed
37. 37.🔍 Which is the odd one out? (a) a brick (b) a wooden board (c) your hand (d) clear plastic film
38. 38.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) turmeric powder (c) chalk to mark shadows (d) a sunny open place
39. 39.🔦 Which of these is translucent? (a) clear glass (b) your hand (c) butter paper (d) a wooden board
40. 40.🔦 Which of these is translucent? (a) clear glass (b) a steel plate (c) a wooden board (d) frosted glass

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