Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 640 · 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.🛟 What should you wear for a long time in the hot sun? (a) nothing on your head (b) a woollen sweater (c) a raincoat (d) a cap or hat
2. 2.True or false: a sunny open place is not needed for the shadow clock. (a) False (b) True
3. 3.True or false: chalk to mark shadows is needed for the shadow clock. (a) False (b) True
4. 4.🔦 Which of these is transparent? (a) oily paper (b) a brick (c) butter paper (d) clear glass
5. 5.🔦 Is your hand opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
6. 6.🔦 Which of these is transparent? (a) your hand (b) oily paper (c) clear plastic film (d) a steel plate
7. 7.True or false: your hand is opaque. (a) False (b) True
8. 8.🧺 Do we need turmeric powder for the shadow clock? (a) needed (b) not needed
9. 9.True or false: a balloon 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? Which of these is the one thing we change? (a) the stick kept upright (b) the time of day (c) shadow length (d) the same stick
11. 11.🛟 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
12. 12.True or false: a sunny open place is needed for the shadow clock. (a) False (b) True
13. 13.True or false: clear plastic film is transparent. (a) True (b) False
14. 14.🔦 Which of these is translucent? (a) clear plastic film (b) clean water (c) oily paper (d) a book
15. 15.⚖️ 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
16. 16.🔍 Which is the odd one out? (a) oily paper (b) tissue paper (c) frosted glass (d) clear glass
17. 17.🧺 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) a sunny open place
18. 18.🧺 Do we need a clock to check for the shadow clock? (a) needed (b) not needed
19. 19.True or false: a clock to check is not needed for the shadow clock. (a) True (b) False
20. 20.🌍 Why does the stick’s shadow move during the day? (a) the stick walks (b) Earth keeps spinning (c) the ground slides (d) the stick grows
21. 21.⚖️ 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) False (b) True
22. 22.⚖️ 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 time of day (d) the stick kept upright
23. 23.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) north (b) west (c) up (d) east
24. 24.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the stick kept upright is the one thing we change. (a) False (b) True
25. 25.🔦 Is clean water opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
26. 26.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) yeast (b) chalk to mark shadows (c) a clock to check (d) a straight stick
27. 27.🔦 Is clear plastic film opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
28. 28.🔦 Is a wooden board opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
29. 29.True or false: clear glass is translucent. (a) False (b) True
30. 30.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same spot”? (a) we measure it (b) we keep it the same (c) we change it
31. 31.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) missing (b) long (c) short (d) round
32. 32.🔍 Which is the odd one out? (a) clean water (b) frosted glass (c) clear glass (d) air
33. 33.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the stick kept upright is kept the same. (a) False (b) True
34. 34.⚖️ 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
35. 35.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is the one thing we change. (a) True (b) False
36. 36.🔍 Which is the odd one out? (a) a brick (b) air (c) a wooden board (d) a steel plate
37. 37.⚖️ 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 stick (c) the time of day
38. 38.🔮 Predict: on a fully cloudy day, the sundial ___. (a) shows two times (b) runs faster (c) does not work well (d) works better
39. 39.🔦 Which of these is opaque? (a) butter paper (b) your hand (c) clean water (d) clear plastic film
40. 40.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) a straight stick (c) a clock to check (d) turmeric powder

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