Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 720 · 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 straight stick (b) a sunny open place (c) a clock to check (d) yeast
2. 2.🧺 Which of these is not needed for the shadow clock? (a) a battery cell (b) a sunny open place (c) chalk to mark shadows (d) a clock to check
3. 3.⚖️ 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
4. 4.🔦 Which of these is transparent? (a) a steel plate (b) butter paper (c) frosted glass (d) clear glass
5. 5.🧺 Do we need a straight stick for the shadow clock? (a) not needed (b) needed
6. 6.🔍 Which is the odd one out? (a) clean water (b) frosted glass (c) clear plastic film (d) clear glass
7. 7.True or false: a mirror is needed for the shadow clock. (a) False (b) True
8. 8.🧺 Do we need a balloon for the shadow clock? (a) not needed (b) needed
9. 9.⚖️ 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) True (b) False
10. 10.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) a straight stick (c) a magnet (d) a clock to check
11. 11.📘 Why does a shadow form? (a) the object is cold (b) the ground is dark (c) light bends round it (d) an object blocks light
12. 12.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same spot is kept the same. (a) False (b) True
13. 13.🔮 Predict: on a fully cloudy day, the sundial ___. (a) does not work well (b) works better (c) runs faster (d) shows two times
14. 14.🧺 Do we need a battery cell for the shadow clock? (a) not needed (b) needed
15. 15.🔍 Which is the odd one out? (a) your hand (b) a book (c) oily paper (d) a wooden board
16. 16.🔦 Which of these is transparent? (a) frosted glass (b) oily paper (c) tissue paper (d) clean water
17. 17.🛟 While watching shadows outdoors, what must you never do? (a) mark with chalk (b) wear a cap (c) look straight at the Sun (d) sit in the shade
18. 18.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “shadow length”? (a) we measure it (b) we change it (c) we keep it the same
19. 19.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is kept the same? (a) the stick kept upright (b) shadow length (c) the time of day
20. 20.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) up (b) north (c) east (d) west
21. 21.🔦 Which of these is transparent? (a) tissue paper (b) a book (c) air (d) a wooden board
22. 22.🧺 Which of these is not needed for the shadow clock? (a) a clock to check (b) chalk to mark shadows (c) yeast (d) a sunny open place
23. 23.⚖️ 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) the same stick (c) shadow length
24. 24.🧺 Do we need a magnet for the shadow clock? (a) needed (b) not needed
25. 25.🔍 Which is the odd one out? (a) oily paper (b) frosted glass (c) a brick (d) butter paper
26. 26.True or false: a straight stick is needed for the shadow clock. (a) False (b) True
27. 27.True or false: turmeric powder is needed for the shadow clock. (a) True (b) False
28. 28.🛟 What should you wear for a long time in the hot sun? (a) a cap or hat (b) nothing on your head (c) a raincoat (d) a woollen sweater
29. 29.⚖️ 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
30. 30.🔦 Which of these is opaque? (a) frosted glass (b) a brick (c) air (d) butter paper
31. 31.🔍 Which is the odd one out? (a) clear glass (b) clean water (c) clear plastic film (d) a wooden board
32. 32.🌞 When is a stick’s shadow the shortest? (a) around noon (b) early morning (c) at night (d) late evening
33. 33.⚖️ 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
34. 34.🔦 Which of these is opaque? (a) frosted glass (b) butter paper (c) clear plastic film (d) a book
35. 35.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the stick kept upright”? (a) we change it (b) we measure it (c) we keep it the same
36. 36.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the time of day”? (a) we change it (b) we keep it the same (c) we measure it
37. 37.True or false: a sunny open place 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? Which of these is what we measure? (a) the same stick (b) the same spot (c) the time of day (d) shadow length
39. 39.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) brighter (b) bigger (c) coloured (d) smaller
40. 40.🔦 Is a brick opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque

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