Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 161 · 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.⚖️ 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 spot (c) the stick kept upright (d) the time of day
2. 2.🔦 Which of these is translucent? (a) butter paper (b) your hand (c) a brick (d) a wooden board
3. 3.🌞 When is a stick’s shadow the shortest? (a) late evening (b) early morning (c) around noon (d) at night
4. 4.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) a sunny open place (c) a straight stick (d) a magnet
5. 5.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) missing (b) round (c) long (d) short
6. 6.⚖️ 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 time of day (c) the stick kept upright
7. 7.🧺 Do we need a clock to check for the shadow clock? (a) not needed (b) needed
8. 8.🔦 Which of these is transparent? (a) a steel plate (b) oily paper (c) clear plastic film (d) a book
9. 9.🧺 Do we need a balloon for the shadow clock? (a) needed (b) not needed
10. 10.🌍 Why does the stick’s shadow move during the day? (a) Earth keeps spinning (b) the ground slides (c) the stick grows (d) the stick walks
11. 11.🔍 Which is the odd one out? (a) your hand (b) a brick (c) a wooden board (d) clear plastic film
12. 12.⚖️ 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 change it (c) we keep it the same
13. 13.🔮 Predict: on a fully cloudy day, the sundial ___. (a) shows two times (b) works better (c) runs faster (d) does not work well
14. 14.📘 Why does a shadow form? (a) light bends round it (b) the ground is dark (c) the object is cold (d) an object blocks light
15. 15.🧺 Which of these is needed for the shadow clock? (a) a sunny open place (b) yeast (c) a mirror (d) turmeric powder
16. 16.🔦 Which of these is opaque? (a) frosted glass (b) a steel plate (c) oily paper (d) tissue paper
17. 17.True or false: a balloon is needed for the shadow clock. (a) True (b) False
18. 18.True or false: turmeric powder is not needed for the shadow clock. (a) True (b) False
19. 19.True or false: a mirror is not needed for the shadow clock. (a) False (b) True
20. 20.🛟 What should you wear for a long time in the hot sun? (a) a woollen sweater (b) a cap or hat (c) a raincoat (d) nothing on your head
21. 21.🧺 Which of these is not needed for the shadow clock? (a) a clock to check (b) a mirror (c) a straight stick (d) a sunny open place
22. 22.🔍 Which is the odd one out? (a) a brick (b) oily paper (c) frosted glass (d) tissue paper
23. 23.🛟 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
24. 24.⚖️ 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 change it (c) we keep it the same
25. 25.🧺 Do we need a magnet for the shadow clock? (a) not needed (b) needed
26. 26.True or false: air is transparent. (a) False (b) True
27. 27.⚖️ 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
28. 28.🔦 Is your hand opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
29. 29.True or false: a clock to check is not needed for the shadow clock. (a) False (b) True
30. 30.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) a clock to check (c) a battery cell (d) a sunny open place
31. 31.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) turmeric powder (b) a straight stick (c) a clock to check (d) chalk to mark shadows
32. 32.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) a magnet (c) chalk to mark shadows (d) a straight stick
33. 33.True or false: a balloon is not needed for the shadow clock. (a) True (b) False
34. 34.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) smaller (b) bigger (c) brighter (d) coloured
35. 35.True or false: tissue paper is transparent. (a) False (b) True
36. 36.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) a straight stick (c) a clock to check (d) a mirror
37. 37.🔍 Which is the odd one out? (a) oily paper (b) a wooden board (c) your hand (d) a steel plate
38. 38.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: shadow length is kept the same. (a) True (b) False
39. 39.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) east (b) up (c) north (d) west
40. 40.🔦 Which of these is opaque? (a) frosted glass (b) a wooden board (c) clean water (d) clear glass

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