Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 889 · 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.🔮 Predict: on a fully cloudy day, the sundial ___. (a) works better (b) runs faster (c) shows two times (d) does not work well
2. 2.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) yeast (c) a sunny open place (d) a straight stick
3. 3.🌍 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
4. 4.🔦 Which of these is opaque? (a) a steel plate (b) butter paper (c) clean water (d) frosted glass
5. 5.🛟 While watching shadows outdoors, what must you never do? (a) mark with chalk (b) wear a cap (c) sit in the shade (d) look straight at the Sun
6. 6.🛟 What should you wear for a long time in the hot sun? (a) nothing on your head (b) a raincoat (c) a woollen sweater (d) a cap or hat
7. 7.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) up (b) west (c) east (d) north
8. 8.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a straight stick (c) a mirror (d) chalk to mark shadows
9. 9.⚖️ 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
10. 10.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the stick kept upright”? (a) we measure it (b) we change it (c) we keep it the same
11. 11.True or false: clear glass is opaque. (a) True (b) False
12. 12.True or false: a magnet is not needed for the shadow clock. (a) False (b) True
13. 13.⚖️ 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) False (b) True
14. 14.⚖️ 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
15. 15.🧺 Which of these is needed for the shadow clock? (a) a mirror (b) yeast (c) a balloon (d) a straight stick
16. 16.True or false: yeast is needed for the shadow clock. (a) True (b) False
17. 17.🔍 Which is the odd one out? (a) a wooden board (b) clear plastic film (c) clean water (d) clear glass
18. 18.🌞 When is a stick’s shadow the shortest? (a) early morning (b) late evening (c) at night (d) around noon
19. 19.True or false: a battery cell is not needed for the shadow clock. (a) False (b) True
20. 20.⚖️ 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 same stick (c) the stick kept upright (d) shadow length
21. 21.🧺 Do we need a sunny open place for the shadow clock? (a) needed (b) not needed
22. 22.🔦 Is butter paper opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
23. 23.🧺 Which of these is needed for the shadow clock? (a) a magnet (b) a mirror (c) a balloon (d) a clock to check
24. 24.🔍 Which is the odd one out? (a) a book (b) a steel plate (c) a brick (d) clear glass
25. 25.True or false: frosted glass is translucent. (a) False (b) True
26. 26.🧺 Do we need a mirror for the shadow clock? (a) needed (b) not needed
27. 27.🔦 Is your hand opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
28. 28.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) a magnet (c) a straight stick (d) a clock to check
29. 29.⚖️ 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 keep it the same (c) we change it
30. 30.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the time of day is kept the same. (a) False (b) True
31. 31.🔦 Which of these is opaque? (a) clean water (b) a wooden board (c) clear plastic film (d) oily paper
32. 32.🧺 Do we need a battery cell for the shadow clock? (a) needed (b) not needed
33. 33.🔦 Which of these is translucent? (a) a wooden board (b) a steel plate (c) tissue paper (d) air
34. 34.🧺 Which of these is not needed for the shadow clock? (a) a clock to check (b) a sunny open place (c) a battery cell (d) a straight stick
35. 35.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a battery cell (b) a straight stick (c) chalk to mark shadows (d) a clock to check
36. 36.True or false: a sunny open place is not needed for the shadow clock. (a) True (b) False
37. 37.🔦 Which of these is opaque? (a) clean water (b) a brick (c) air (d) tissue paper
38. 38.⚖️ 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 stick
39. 39.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) bigger (b) smaller (c) coloured (d) brighter
40. 40.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same spot”? (a) we keep it the same (b) we measure it (c) we change it

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