Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 581 · 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.🔦 Is a brick opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
2. 2.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) north (b) west (c) up (d) east
3. 3.🧺 Do we need chalk to mark shadows for the shadow clock? (a) needed (b) not needed
4. 4.🛟 While watching shadows outdoors, what must you never do? (a) sit in the shade (b) wear a cap (c) look straight at the Sun (d) mark with chalk
5. 5.🧺 Which of these is needed for the shadow clock? (a) a straight stick (b) a magnet (c) a mirror (d) a balloon
6. 6.🕰️ What is a sundial used for? (a) making rainbows (b) telling the time (c) measuring rain (d) weighing things
7. 7.🧺 Do we need turmeric powder for the shadow clock? (a) not needed (b) needed
8. 8.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same spot”? (a) we change it (b) we measure it (c) we keep it the same
9. 9.🧺 Do we need a sunny open place for the shadow clock? (a) needed (b) not needed
10. 10.⚖️ 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
11. 11.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) the same stick (b) the stick kept upright (c) shadow length (d) the time of day
12. 12.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) smaller (b) bigger (c) coloured (d) brighter
13. 13.🔮 Predict: on a fully cloudy day, the sundial ___. (a) shows two times (b) works better (c) runs faster (d) does not work well
14. 14.🧺 Do we need a straight stick for the shadow clock? (a) needed (b) not needed
15. 15.True or false: a sunny open place is not 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 stick kept upright is kept the same. (a) True (b) False
17. 17.🧺 Which of these is not needed for the shadow clock? (a) a magnet (b) chalk to mark shadows (c) a straight stick (d) a clock to check
18. 18.🔍 Which is the odd one out? (a) a steel plate (b) clear plastic film (c) your hand (d) a brick
19. 19.🧺 Do we need yeast for the shadow clock? (a) not needed (b) needed
20. 20.🧺 Which of these is not needed for the shadow clock? (a) yeast (b) a straight stick (c) a clock to check (d) a sunny open place
21. 21.🔦 Which of these is translucent? (a) clear plastic film (b) clean water (c) butter paper (d) a book
22. 22.⚖️ 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
23. 23.⚖️ 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 spot (b) the stick kept upright (c) the time of day (d) shadow length
24. 24.📘 Why does a shadow form? (a) the object is cold (b) an object blocks light (c) the ground is dark (d) light bends round it
25. 25.🔦 Is tissue paper opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
26. 26.True or false: a battery cell is needed for the shadow clock. (a) True (b) False
27. 27.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) a straight stick (c) chalk to mark shadows (d) a mirror
28. 28.🔦 Is a book opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
29. 29.True or false: a clock to check is needed for the shadow clock. (a) True (b) False
30. 30.🌞 When is a stick’s shadow the shortest? (a) at night (b) late evening (c) around noon (d) early morning
31. 31.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) turmeric powder (c) a sunny open place (d) a clock to check
32. 32.🔦 Is butter paper opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
33. 33.True or false: butter paper is translucent. (a) True (b) False
34. 34.🔍 Which is the odd one out? (a) clear glass (b) air (c) clean water (d) a steel plate
35. 35.🧺 Which of these is needed for the shadow clock? (a) turmeric powder (b) a sunny open place (c) yeast (d) a battery cell
36. 36.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is kept the same? (a) the same stick (b) shadow length (c) the time of day
37. 37.⚖️ 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
38. 38.🧺 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 magnet (d) chalk to mark shadows
39. 39.🔦 Which of these is transparent? (a) tissue paper (b) clean water (c) oily paper (d) your hand
40. 40.🔦 Which of these is opaque? (a) tissue paper (b) your hand (c) frosted glass (d) air

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