Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 458 · 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.🧺 Do we need chalk to mark shadows for the shadow clock? (a) not needed (b) needed
2. 2.🧺 Which of these is needed for the shadow clock? (a) a magnet (b) a mirror (c) a balloon (d) chalk to mark shadows
3. 3.🔦 Which of these is opaque? (a) a steel plate (b) oily paper (c) clear plastic film (d) frosted glass
4. 4.🔦 Which of these is translucent? (a) a book (b) oily paper (c) air (d) clean water
5. 5.🧺 Do we need a magnet for the shadow clock? (a) needed (b) not needed
6. 6.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) a sunny open place (c) a straight stick (d) a battery cell
7. 7.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) brighter (b) coloured (c) smaller (d) bigger
8. 8.🧺 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) a balloon (d) a straight stick
9. 9.🔦 Is butter paper opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
10. 10.🛟 What should you wear for a long time in the hot sun? (a) nothing on your head (b) a woollen sweater (c) a cap or hat (d) a raincoat
11. 11.⚖️ 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) True (b) False
12. 12.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) a clock to check (c) yeast (d) chalk to mark shadows
13. 13.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the time of day is the one thing we change. (a) False (b) True
14. 14.⚖️ 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 stick kept upright (c) the time of day (d) shadow length
15. 15.⚖️ 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
16. 16.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) east (b) up (c) north (d) west
17. 17.🔦 Which of these is opaque? (a) clear glass (b) oily paper (c) a book (d) butter paper
18. 18.True or false: butter paper is opaque. (a) True (b) False
19. 19.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same stick”? (a) we measure it (b) we keep it the same (c) we change it
20. 20.🕰️ What is a sundial used for? (a) telling the time (b) making rainbows (c) weighing things (d) measuring rain
21. 21.True or false: chalk to mark shadows is not needed for the shadow clock. (a) True (b) False
22. 22.🔮 Predict: on a fully cloudy day, the sundial ___. (a) runs faster (b) works better (c) shows two times (d) does not work well
23. 23.True or false: a straight stick is not needed for the shadow clock. (a) True (b) False
24. 24.🧺 Which of these is not needed for the shadow clock? (a) a balloon (b) a clock to check (c) chalk to mark shadows (d) a sunny open place
25. 25.⚖️ 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 change it (c) we keep it the same
26. 26.True or false: a mirror is needed for the shadow clock. (a) True (b) False
27. 27.🛟 While watching shadows outdoors, what must you never do? (a) sit in the shade (b) mark with chalk (c) look straight at the Sun (d) wear a cap
28. 28.True or false: a balloon is not needed for the shadow clock. (a) False (b) True
29. 29.⚖️ 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 stick kept upright (c) the time of day
30. 30.🧺 Do we need a clock to check for the shadow clock? (a) needed (b) not needed
31. 31.🌍 Why does the stick’s shadow move during the day? (a) the ground slides (b) the stick grows (c) the stick walks (d) Earth keeps spinning
32. 32.True or false: chalk to mark shadows is needed for the shadow clock. (a) False (b) True
33. 33.True or false: yeast is not needed for the shadow clock. (a) False (b) True
34. 34.🧺 Which of these is not needed for the shadow clock? (a) a magnet (b) a sunny open place (c) chalk to mark shadows (d) a straight stick
35. 35.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: shadow length is what we measure. (a) False (b) True
36. 36.True or false: a straight stick is needed for the shadow clock. (a) False (b) True
37. 37.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: shadow length is the one thing we change. (a) True (b) False
38. 38.🧺 Do we need a straight stick for the shadow clock? (a) needed (b) not needed
39. 39.🔦 Is clear plastic film opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
40. 40.True or false: a sunny open place is needed for the shadow clock. (a) False (b) True

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