Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 729 · 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? True or false: the same spot is kept the same. (a) True (b) False
2. 2.True or false: your hand is transparent. (a) False (b) True
3. 3.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) west (b) up (c) east (d) north
4. 4.🔦 Is butter paper opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
5. 5.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) a battery cell (c) chalk to mark shadows (d) a straight stick
6. 6.🛟 While watching shadows outdoors, what must you never do? (a) sit in the shade (b) look straight at the Sun (c) mark with chalk (d) wear a cap
7. 7.🔦 Which of these is translucent? (a) clean water (b) frosted glass (c) a brick (d) air
8. 8.🔦 Is clear plastic film opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
9. 9.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) the stick kept upright (b) the same stick (c) the time of day (d) shadow length
10. 10.🛟 What should you wear for a long time in the hot sun? (a) a woollen sweater (b) a raincoat (c) a cap or hat (d) nothing on your head
11. 11.🧺 Do we need a mirror for the shadow clock? (a) not needed (b) needed
12. 12.True or false: turmeric powder is not needed for the shadow clock. (a) False (b) True
13. 13.🔦 Which of these is opaque? (a) tissue paper (b) butter paper (c) air (d) a wooden board
14. 14.🔍 Which is the odd one out? (a) oily paper (b) tissue paper (c) clear glass (d) frosted glass
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.🔮 Predict: on a fully cloudy day, the sundial ___. (a) runs faster (b) shows two times (c) does not work well (d) works better
17. 17.⚖️ 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
18. 18.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) a mirror (c) a clock to check (d) a straight stick
19. 19.True or false: a clock to check is needed for the shadow clock. (a) False (b) True
20. 20.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is kept the same? (a) the stick kept upright (b) shadow length (c) the time of day
21. 21.⚖️ 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
22. 22.🧺 Which of these is needed for the shadow clock? (a) yeast (b) a magnet (c) turmeric powder (d) a straight stick
23. 23.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) smaller (b) bigger (c) brighter (d) coloured
24. 24.📘 Why does a shadow form? (a) the ground is dark (b) light bends round it (c) an object blocks light (d) the object is cold
25. 25.🕰️ What is a sundial used for? (a) measuring rain (b) telling the time (c) weighing things (d) making rainbows
26. 26.True or false: a clock to check is not needed for the shadow clock. (a) False (b) True
27. 27.True or false: chalk to mark shadows is not needed for the shadow clock. (a) True (b) False
28. 28.⚖️ 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
29. 29.🧺 Which of these is not needed for the shadow clock? (a) a clock to check (b) a straight stick (c) a sunny open place (d) a magnet
30. 30.🔦 Is oily paper opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
31. 31.🌞 When is a stick’s shadow the shortest? (a) late evening (b) around noon (c) at night (d) early morning
32. 32.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is kept the same? (a) the time of day (b) the same stick (c) shadow length
33. 33.⚖️ 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) True (b) False
34. 34.True or false: a steel plate is transparent. (a) True (b) False
35. 35.🔍 Which is the odd one out? (a) oily paper (b) a wooden board (c) tissue paper (d) frosted glass
36. 36.True or false: clear glass is transparent. (a) True (b) False
37. 37.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is the one thing we change? (a) the time of day (b) the stick kept upright (c) the same stick (d) shadow length
38. 38.🔦 Is clear glass opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
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) False (b) True
40. 40.🧺 Do we need yeast for the shadow clock? (a) needed (b) not needed

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