Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 893 · 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.🧺 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 sunny open place (d) turmeric powder
2. 2.🛟 While watching shadows outdoors, what must you never do? (a) wear a cap (b) mark with chalk (c) look straight at the Sun (d) sit in the shade
3. 3.🧺 Do we need yeast for the shadow clock? (a) not needed (b) needed
4. 4.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is the one thing we change? (a) shadow length (b) the time of day (c) the stick kept upright (d) the same spot
5. 5.True or false: turmeric powder is needed for the shadow clock. (a) True (b) False
6. 6.True or false: a wooden board is transparent. (a) False (b) True
7. 7.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same stick”? (a) we change it (b) we measure it (c) we keep it the same
8. 8.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) round (b) long (c) missing (d) short
9. 9.🔍 Which is the odd one out? (a) clear plastic film (b) air (c) frosted glass (d) clear glass
10. 10.🔦 Which of these is opaque? (a) frosted glass (b) clear plastic film (c) a steel plate (d) oily paper
11. 11.⚖️ 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
12. 12.🧺 Do we need a clock to check for the shadow clock? (a) needed (b) not needed
13. 13.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) brighter (b) coloured (c) bigger (d) smaller
14. 14.🕰️ What is a sundial used for? (a) weighing things (b) making rainbows (c) measuring rain (d) telling the time
15. 15.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) west (b) east (c) up (d) north
16. 16.🔦 Which of these is translucent? (a) tissue paper (b) a wooden board (c) air (d) clean water
17. 17.🛟 What should you wear for a long time in the hot sun? (a) a woollen sweater (b) a raincoat (c) nothing on your head (d) a cap or hat
18. 18.⚖️ 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
19. 19.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the stick kept upright”? (a) we measure it (b) we keep it the same (c) we change it
20. 20.🧺 Do we need a magnet for the shadow clock? (a) not needed (b) needed
21. 21.🔮 Predict: on a fully cloudy day, the sundial ___. (a) shows two times (b) works better (c) runs faster (d) does not work well
22. 22.🧺 Do we need a mirror for the shadow clock? (a) not needed (b) needed
23. 23.🔍 Which is the odd one out? (a) clean water (b) clear glass (c) a wooden board (d) air
24. 24.🔦 Is your hand opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
25. 25.True or false: chalk to mark shadows is not needed for the shadow clock. (a) True (b) False
26. 26.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “shadow length”? (a) we measure it (b) we change it (c) we keep it the same
27. 27.🔦 Is a steel plate opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
28. 28.⚖️ 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
29. 29.🧺 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 balloon (d) chalk to mark shadows
30. 30.🔦 Is clear glass opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
31. 31.🔦 Is butter paper opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
32. 32.🧺 Do we need a balloon for the shadow clock? (a) needed (b) not needed
33. 33.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same spot is kept the same. (a) False (b) True
34. 34.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) a battery cell (c) a clock to check (d) a straight stick
35. 35.🌞 When is a stick’s shadow the shortest? (a) around noon (b) late evening (c) at night (d) early morning
36. 36.🧺 Do we need a battery cell for the shadow clock? (a) needed (b) not needed
37. 37.⚖️ 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
38. 38.⚖️ 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 same stick
39. 39.🧺 Do we need chalk to mark shadows for the shadow clock? (a) needed (b) not needed
40. 40.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) a straight stick (c) a magnet (d) a sunny open place

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