Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 318 · 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.🧺 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 balloon
2. 2.🧺 Which of these is needed for the shadow clock? (a) a balloon (b) yeast (c) a sunny open place (d) a mirror
3. 3.True or false: a brick is transparent. (a) True (b) False
4. 4.🧺 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 clock to check
5. 5.True or false: a sunny open place is not needed for the shadow clock. (a) False (b) True
6. 6.🔮 Predict: on a fully cloudy day, the sundial ___. (a) works better (b) runs faster (c) shows two times (d) does not work well
7. 7.🧺 Do we need a straight stick for the shadow clock? (a) needed (b) not needed
8. 8.🔦 Is clear plastic film opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
9. 9.True or false: chalk to mark shadows is not needed for the shadow clock. (a) False (b) True
10. 10.🔦 Is clean water opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
11. 11.🔍 Which is the odd one out? (a) a brick (b) a wooden board (c) clean water (d) a steel plate
12. 12.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a magnet (c) a clock to check (d) a sunny open place
13. 13.🧺 Do we need a sunny open place for the shadow clock? (a) not needed (b) needed
14. 14.🧺 Do we need a balloon for the shadow clock? (a) not needed (b) needed
15. 15.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “shadow length”? (a) we keep it the same (b) we change it (c) we measure it
16. 16.🕰️ What is a sundial used for? (a) measuring rain (b) telling the time (c) making rainbows (d) weighing things
17. 17.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) north (b) west (c) east (d) up
18. 18.True or false: a book is transparent. (a) True (b) False
19. 19.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) coloured (b) brighter (c) bigger (d) smaller
20. 20.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) a straight stick (c) a mirror (d) a clock to check
21. 21.🛟 While watching shadows outdoors, what must you never do? (a) sit in the shade (b) look straight at the Sun (c) wear a cap (d) mark with chalk
22. 22.🧺 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) a straight stick (d) a battery cell
23. 23.🛟 What should you wear for a long time in the hot sun? (a) a woollen sweater (b) a cap or hat (c) nothing on your head (d) a raincoat
24. 24.True or false: a balloon is needed for the shadow clock. (a) False (b) True
25. 25.⚖️ 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
26. 26.🔦 Which of these is opaque? (a) frosted glass (b) tissue paper (c) clear plastic film (d) a steel plate
27. 27.⚖️ 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 same spot
28. 28.🧺 Which of these is not needed for the shadow clock? (a) a clock to check (b) a balloon (c) chalk to mark shadows (d) a straight stick
29. 29.⚖️ 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 same spot (d) the time of day
30. 30.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) the time of day (b) the same spot (c) shadow length (d) the same stick
31. 31.🔦 Is your hand opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
32. 32.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) yeast (c) a clock to check (d) a sunny open place
33. 33.🧺 Do we need turmeric powder for the shadow clock? (a) not needed (b) needed
34. 34.🔦 Is a wooden board opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
35. 35.🧺 Which of these is needed for the shadow clock? (a) a magnet (b) turmeric powder (c) yeast (d) a clock to check
36. 36.🔍 Which is the odd one out? (a) a wooden board (b) a steel plate (c) air (d) your hand
37. 37.🔦 Is a book opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
38. 38.🧺 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 mirror
39. 39.True or false: a wooden board is transparent. (a) False (b) True
40. 40.⚖️ 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 change it (c) we measure it

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