Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 166 · 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.🔦 Which of these is opaque? (a) clear glass (b) butter paper (c) tissue paper (d) a book
2. 2.🔦 Is tissue paper opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
3. 3.🔦 Which of these is opaque? (a) a wooden board (b) frosted glass (c) clear plastic film (d) tissue paper
4. 4.🔍 Which is the odd one out? (a) air (b) a wooden board (c) clear glass (d) clear plastic film
5. 5.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) brighter (b) smaller (c) coloured (d) bigger
6. 6.🔮 Predict: on a fully cloudy day, the sundial ___. (a) shows two times (b) works better (c) does not work well (d) runs faster
7. 7.🔦 Is oily paper opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
8. 8.🔍 Which is the odd one out? (a) your hand (b) clear glass (c) a steel plate (d) a wooden board
9. 9.🔦 Is a brick opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
10. 10.True or false: oily paper is opaque. (a) False (b) True
11. 11.🛟 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
12. 12.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a sunny open place (c) chalk to mark shadows (d) turmeric powder
13. 13.🕰️ What is a sundial used for? (a) measuring rain (b) weighing things (c) telling the time (d) making rainbows
14. 14.🔍 Which is the odd one out? (a) a steel plate (b) frosted glass (c) tissue paper (d) oily paper
15. 15.True or false: turmeric powder is not needed for the shadow clock. (a) False (b) True
16. 16.🌍 Why does the stick’s shadow move during the day? (a) Earth keeps spinning (b) the stick walks (c) the stick grows (d) the ground slides
17. 17.🧺 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
18. 18.True or false: chalk to mark shadows is not needed for the shadow clock. (a) False (b) True
19. 19.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) a clock to check (c) chalk to mark shadows (d) a mirror
20. 20.🧺 Do we need a straight stick for the shadow clock? (a) needed (b) not needed
21. 21.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) chalk to mark shadows (c) a clock to check (d) a magnet
22. 22.🔦 Is a wooden board opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
23. 23.True or false: turmeric powder is needed for the shadow clock. (a) True (b) False
24. 24.🧺 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 straight stick (d) a sunny open place
25. 25.⚖️ 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
26. 26.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) a clock to check (c) yeast (d) a straight stick
27. 27.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same spot”? (a) we keep it the same (b) we measure it (c) we change it
28. 28.🧺 Do we need a sunny open place for the shadow clock? (a) needed (b) not needed
29. 29.⚖️ 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) False (b) True
30. 30.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is the one thing we change? (a) the stick kept upright (b) the time of day (c) the same spot (d) shadow length
31. 31.🧺 Do we need a clock to check for the shadow clock? (a) not needed (b) needed
32. 32.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) turmeric powder (c) chalk to mark shadows (d) a straight stick
33. 33.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is kept the same. (a) False (b) True
34. 34.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) the same spot (b) the time of day (c) the stick kept upright (d) shadow length
35. 35.⚖️ 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
36. 36.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same spot is what we measure. (a) False (b) True
37. 37.True or false: air is opaque. (a) True (b) False
38. 38.🔦 Is your hand opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
39. 39.📘 Why does a shadow form? (a) light bends round it (b) an object blocks light (c) the object is cold (d) the ground is dark
40. 40.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) east (b) north (c) up (d) west

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