Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 901 · 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 kept the same? (a) shadow length (b) the time of day (c) the stick kept upright
2. 2.🔍 Which is the odd one out? (a) tissue paper (b) a steel plate (c) butter paper (d) oily paper
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 keep it the same (b) we measure it (c) we change it
4. 4.🔦 Is your hand opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
5. 5.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the stick kept upright is what we measure. (a) True (b) False
6. 6.🧺 Which of these is needed for the shadow clock? (a) a magnet (b) a mirror (c) chalk to mark shadows (d) a battery cell
7. 7.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) a straight stick (c) a sunny open place (d) a magnet
8. 8.⚖️ 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
9. 9.True or false: frosted glass is opaque. (a) True (b) False
10. 10.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is the one thing we change? (a) the same stick (b) the same spot (c) the stick kept upright (d) the time of day
11. 11.🔦 Is clean water opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
12. 12.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) a straight stick (c) chalk to mark shadows (d) yeast
13. 13.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) north (b) up (c) east (d) west
14. 14.🔦 Is a steel plate opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
15. 15.True or false: a balloon is needed for the shadow clock. (a) False (b) True
16. 16.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is what we measure. (a) False (b) True
17. 17.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a straight stick (c) a balloon (d) a sunny open place
18. 18.🛟 While watching shadows outdoors, what must you never do? (a) look straight at the Sun (b) wear a cap (c) sit in the shade (d) mark with chalk
19. 19.🧺 Do we need turmeric powder for the shadow clock? (a) needed (b) not needed
20. 20.🔍 Which is the odd one out? (a) clear glass (b) clear plastic film (c) frosted glass (d) air
21. 21.True or false: air is transparent. (a) False (b) True
22. 22.🔦 Which of these is transparent? (a) clear plastic film (b) a brick (c) butter paper (d) oily paper
23. 23.🔦 Is butter paper opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
24. 24.⚖️ 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
25. 25.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a magnet (b) a sunny open place (c) a straight stick (d) chalk to mark shadows
26. 26.⚖️ 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 change it (c) we keep it the same
27. 27.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) round (b) missing (c) long (d) short
28. 28.True or false: butter paper is translucent. (a) False (b) True
29. 29.🧺 Do we need a sunny open place for the shadow clock? (a) not needed (b) needed
30. 30.📘 Why does a shadow form? (a) an object blocks light (b) light bends round it (c) the object is cold (d) the ground is dark
31. 31.True or false: frosted glass is transparent. (a) True (b) False
32. 32.🧺 Which of these is needed for the shadow clock? (a) a balloon (b) yeast (c) turmeric powder (d) a straight stick
33. 33.True or false: a straight stick is needed for the shadow clock. (a) False (b) True
34. 34.🕰️ What is a sundial used for? (a) weighing things (b) making rainbows (c) telling the time (d) measuring rain
35. 35.🔮 Predict: on a fully cloudy day, the sundial ___. (a) shows two times (b) runs faster (c) works better (d) does not work well
36. 36.🌍 Why does the stick’s shadow move during the day? (a) the stick walks (b) the ground slides (c) Earth keeps spinning (d) the stick grows
37. 37.🧺 Do we need chalk to mark shadows for the shadow clock? (a) not needed (b) needed
38. 38.⚖️ 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 keep it the same (c) we change it
39. 39.🧺 Which of these is not needed for the shadow clock? (a) a balloon (b) chalk to mark shadows (c) a sunny open place (d) a clock to check
40. 40.🛟 What should you wear for a long time in the hot sun? (a) a woollen sweater (b) nothing on your head (c) a cap or hat (d) a raincoat

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