Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 622 · 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: the Sun is low in the evening sky. The stick’s shadow is ___. (a) short (b) round (c) long (d) missing
2. 2.🛟 While watching shadows outdoors, what must you never do? (a) mark with chalk (b) wear a cap (c) sit in the shade (d) look straight at the Sun
3. 3.⚖️ 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
4. 4.🔦 Is clear plastic film opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
5. 5.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: shadow length is what we measure. (a) False (b) True
6. 6.⚖️ 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 time of day (c) the same stick (d) the same spot
7. 7.🧺 Do we need a balloon for the shadow clock? (a) not needed (b) needed
8. 8.⚖️ 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
9. 9.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) coloured (b) bigger (c) brighter (d) smaller
10. 10.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) a clock to check (c) a balloon (d) a straight stick
11. 11.True or false: air is opaque. (a) True (b) False
12. 12.🔍 Which is the odd one out? (a) tissue paper (b) butter paper (c) oily paper (d) air
13. 13.🛟 What should you wear for a long time in the hot sun? (a) a raincoat (b) nothing on your head (c) a cap or hat (d) a woollen sweater
14. 14.⚖️ 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
15. 15.🔦 Which of these is transparent? (a) tissue paper (b) clear plastic film (c) frosted glass (d) a brick
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 needed for the shadow clock? (a) a sunny open place (b) turmeric powder (c) a magnet (d) a balloon
18. 18.🧺 Which of these is needed for the shadow clock? (a) a mirror (b) a battery cell (c) a straight stick (d) turmeric powder
19. 19.🔮 Predict: on a fully cloudy day, the sundial ___. (a) works better (b) does not work well (c) shows two times (d) runs faster
20. 20.🔦 Is butter paper opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
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.🧺 Do we need a magnet for the shadow clock? (a) not needed (b) needed
23. 23.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a sunny open place (c) a battery cell (d) a straight stick
24. 24.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “shadow length”? (a) we change it (b) we keep it the same (c) we measure it
25. 25.🔦 Which of these is transparent? (a) clean water (b) frosted glass (c) a book (d) tissue paper
26. 26.🔦 Is frosted glass opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
27. 27.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same spot”? (a) we change it (b) we measure it (c) we keep it the same
28. 28.🌞 When is a stick’s shadow the shortest? (a) at night (b) early morning (c) late evening (d) around noon
29. 29.🕰️ What is a sundial used for? (a) weighing things (b) measuring rain (c) telling the time (d) making rainbows
30. 30.🔦 Which of these is translucent? (a) a steel plate (b) butter paper (c) a wooden board (d) a brick
31. 31.⚖️ 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
32. 32.🔦 Is clean water opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
33. 33.True or false: a wooden board is transparent. (a) True (b) False
34. 34.🌍 Why does the stick’s shadow move during the day? (a) the stick grows (b) the stick walks (c) Earth keeps spinning (d) the ground slides
35. 35.True or false: a clock to check is not needed for the shadow clock. (a) False (b) True
36. 36.🧺 Which of these is needed for the shadow clock? (a) chalk to mark shadows (b) yeast (c) a mirror (d) a magnet
37. 37.🧺 Do we need a mirror for the shadow clock? (a) not needed (b) needed
38. 38.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) up (b) north (c) east (d) west
39. 39.⚖️ 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) True (b) False
40. 40.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same stick”? (a) we keep it the same (b) we change it (c) we measure it

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