Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 373 · 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.🌍 Why does the stick’s shadow move during the day? (a) the stick walks (b) Earth keeps spinning (c) the stick grows (d) the ground slides
2. 2.🕰️ What is a sundial used for? (a) telling the time (b) measuring rain (c) making rainbows (d) weighing things
3. 3.🧺 Which of these is needed for the shadow clock? (a) a battery cell (b) a balloon (c) a sunny open place (d) a magnet
4. 4.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) coloured (b) bigger (c) smaller (d) brighter
5. 5.⚖️ 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
6. 6.🛟 What should you wear for a long time in the hot sun? (a) nothing on your head (b) a cap or hat (c) a raincoat (d) a woollen sweater
7. 7.⚖️ 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
8. 8.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) up (b) north (c) west (d) east
9. 9.⚖️ 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 same spot (c) the stick kept upright (d) shadow length
10. 10.⚖️ 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
11. 11.🧺 Do we need a balloon for the shadow clock? (a) not needed (b) needed
12. 12.🧺 Do we need a clock to check for the shadow clock? (a) not needed (b) needed
13. 13.⚖️ 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) shadow length (c) the same stick
14. 14.🔍 Which is the odd one out? (a) a steel plate (b) butter paper (c) frosted glass (d) oily paper
15. 15.🧺 Do we need a battery cell for the shadow clock? (a) not needed (b) needed
16. 16.📘 Why does a shadow form? (a) an object blocks light (b) the ground is dark (c) light bends round it (d) the object is cold
17. 17.⚖️ 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
18. 18.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a magnet (b) a clock to check (c) a sunny open place (d) a straight stick
19. 19.🧺 Which of these is needed for the shadow clock? (a) a battery cell (b) a balloon (c) chalk to mark shadows (d) a magnet
20. 20.🔦 Is a book opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
21. 21.🧺 Do we need a sunny open place for the shadow clock? (a) not needed (b) needed
22. 22.🔍 Which is the odd one out? (a) clear plastic film (b) oily paper (c) butter paper (d) tissue paper
23. 23.🔍 Which is the odd one out? (a) clean water (b) air (c) a brick (d) clear glass
24. 24.⚖️ 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
25. 25.🧺 Do we need yeast for the shadow clock? (a) needed (b) not needed
26. 26.🔮 Predict: on a fully cloudy day, the sundial ___. (a) runs faster (b) works better (c) does not work well (d) shows two times
27. 27.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) a straight stick (c) a balloon (d) a clock to check
28. 28.🌞 When is a stick’s shadow the shortest? (a) late evening (b) early morning (c) around noon (d) at night
29. 29.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) turmeric powder (c) a clock to check (d) a straight stick
30. 30.🔦 Is tissue paper opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
31. 31.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a battery cell (b) a straight stick (c) chalk to mark shadows (d) a sunny open place
32. 32.🔦 Is clean water opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
33. 33.True or false: a battery cell is needed for the shadow clock. (a) True (b) False
34. 34.🔦 Which of these is opaque? (a) tissue paper (b) butter paper (c) clean water (d) a book
35. 35.🔦 Is a brick opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
36. 36.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) a balloon (c) chalk to mark shadows (d) a straight stick
37. 37.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) a mirror (c) a straight stick (d) a sunny open place
38. 38.🛟 While watching shadows outdoors, what must you never do? (a) look straight at the Sun (b) sit in the shade (c) mark with chalk (d) wear a cap
39. 39.⚖️ 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
40. 40.True or false: air is transparent. (a) True (b) False

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