Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 963 · 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) a mirror (b) a sunny open place (c) a straight stick (d) a clock to check
2. 2.🧺 Do we need a straight stick for the shadow clock? (a) not needed (b) needed
3. 3.🛟 What should you wear for a long time in the hot sun? (a) a raincoat (b) a woollen sweater (c) nothing on your head (d) a cap or hat
4. 4.⚖️ 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
5. 5.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is kept the same? (a) the time of day (b) shadow length (c) the same spot
6. 6.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is kept the same. (a) True (b) False
7. 7.🔦 Which of these is opaque? (a) a wooden board (b) clean water (c) tissue paper (d) clear plastic film
8. 8.🧺 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 battery cell (d) a sunny open place
9. 9.⚖️ 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) shadow length (d) the same stick
10. 10.🔍 Which is the odd one out? (a) clear glass (b) oily paper (c) clear plastic film (d) air
11. 11.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) missing (b) short (c) round (d) long
12. 12.True or false: turmeric powder is not needed for the shadow clock. (a) False (b) True
13. 13.True or false: a brick is transparent. (a) True (b) False
14. 14.🔍 Which is the odd one out? (a) a book (b) a steel plate (c) frosted glass (d) a wooden board
15. 15.🧺 Which of these is needed for the shadow clock? (a) a battery cell (b) a magnet (c) yeast (d) chalk to mark shadows
16. 16.🔦 Is clear glass opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
17. 17.🔍 Which is the odd one out? (a) air (b) clean water (c) clear glass (d) a steel plate
18. 18.🛟 While watching shadows outdoors, what must you never do? (a) look straight at the Sun (b) mark with chalk (c) wear a cap (d) sit in the shade
19. 19.🧺 Which of these is needed for the shadow clock? (a) a sunny open place (b) yeast (c) a mirror (d) a battery cell
20. 20.🧺 Do we need a magnet for the shadow clock? (a) needed (b) not needed
21. 21.🧺 Which of these is needed for the shadow clock? (a) a battery cell (b) a straight stick (c) a balloon (d) turmeric powder
22. 22.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) brighter (b) coloured (c) smaller (d) bigger
23. 23.🌞 When is a stick’s shadow the shortest? (a) early morning (b) late evening (c) around noon (d) at night
24. 24.⚖️ 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
25. 25.🧺 Which of these is needed for the shadow clock? (a) a magnet (b) a clock to check (c) a battery cell (d) yeast
26. 26.⚖️ 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 same stick (c) the stick kept upright (d) the time of day
27. 27.🔍 Which is the odd one out? (a) a steel plate (b) a brick (c) air (d) a book
28. 28.True or false: a balloon is not needed for the shadow clock. (a) False (b) True
29. 29.🔦 Is clear plastic film opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
30. 30.🔦 Is your hand opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
31. 31.⚖️ 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
32. 32.🕰️ What is a sundial used for? (a) measuring rain (b) making rainbows (c) telling the time (d) weighing things
33. 33.🔮 Predict: on a fully cloudy day, the sundial ___. (a) works better (b) shows two times (c) runs faster (d) does not work well
34. 34.🧺 Which of these is not needed for the shadow clock? (a) turmeric powder (b) a clock to check (c) a straight stick (d) a sunny open place
35. 35.🧺 Do we need a sunny open place for the shadow clock? (a) not needed (b) needed
36. 36.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) chalk to mark shadows (c) a straight stick (d) a magnet
37. 37.True or false: a balloon is needed for the shadow clock. (a) False (b) True
38. 38.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is the one thing we change. (a) True (b) False
39. 39.🧺 Do we need chalk to mark shadows for the shadow clock? (a) needed (b) not needed
40. 40.True or false: a battery cell is not needed for the shadow clock. (a) True (b) False

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