Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 786 · 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.🔦 Is a book opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
2. 2.🔮 Predict: on a fully cloudy day, the sundial ___. (a) shows two times (b) works better (c) does not work well (d) runs faster
3. 3.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is kept the same? (a) the same stick (b) the time of day (c) shadow length
4. 4.⚖️ 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
5. 5.🧺 Do we need a magnet for the shadow clock? (a) not needed (b) needed
6. 6.⚖️ 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
7. 7.🧺 Which of these is not needed for the shadow clock? (a) a clock to check (b) a straight stick (c) a magnet (d) chalk to mark shadows
8. 8.🔍 Which is the odd one out? (a) a wooden board (b) butter paper (c) tissue paper (d) frosted glass
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) False (b) True
10. 10.⚖️ 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 keep it the same (c) we change it
11. 11.🌞 When is a stick’s shadow the shortest? (a) late evening (b) at night (c) early morning (d) around noon
12. 12.🧺 Do we need a clock to check for the shadow clock? (a) not needed (b) needed
13. 13.🔦 Is butter paper opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
14. 14.True or false: a balloon is not needed for the shadow clock. (a) False (b) True
15. 15.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) a battery cell (c) a clock to check (d) chalk to mark shadows
16. 16.⚖️ 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
17. 17.🧺 Which of these is needed for the shadow clock? (a) a mirror (b) a balloon (c) a magnet (d) a clock to check
18. 18.🔍 Which is the odd one out? (a) a wooden board (b) clear plastic film (c) a steel plate (d) a book
19. 19.🔍 Which is the odd one out? (a) frosted glass (b) clean water (c) butter paper (d) oily paper
20. 20.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) shadow length (b) the same spot (c) the time of day (d) the same stick
21. 21.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) missing (b) long (c) round (d) short
22. 22.🛟 While watching shadows outdoors, what must you never do? (a) look straight at the Sun (b) wear a cap (c) sit in the shade (d) mark with chalk
23. 23.🛟 What should you wear for a long time in the hot sun? (a) a raincoat (b) a cap or hat (c) a woollen sweater (d) nothing on your head
24. 24.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) chalk to mark shadows (c) yeast (d) a sunny open place
25. 25.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a battery cell (c) a straight stick (d) chalk to mark shadows
26. 26.True or false: a balloon is needed for the shadow clock. (a) False (b) True
27. 27.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) coloured (b) brighter (c) smaller (d) bigger
28. 28.🧺 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) chalk to mark shadows
29. 29.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) north (b) east (c) up (d) west
30. 30.True or false: a clock to check is needed for the shadow clock. (a) False (b) True
31. 31.True or false: air is transparent. (a) True (b) False
32. 32.🔦 Which of these is opaque? (a) oily paper (b) a wooden board (c) butter paper (d) clean water
33. 33.🧺 Do we need a battery cell for the shadow clock? (a) needed (b) not needed
34. 34.🧺 Which of these is not needed for the shadow clock? (a) a clock to check (b) a mirror (c) chalk to mark shadows (d) a straight stick
35. 35.True or false: butter paper is transparent. (a) True (b) False
36. 36.True or false: a straight stick is needed for the shadow clock. (a) False (b) True
37. 37.🔦 Which of these is translucent? (a) a steel plate (b) clear plastic film (c) clear glass (d) frosted glass
38. 38.🧺 Do we need turmeric powder for the shadow clock? (a) not needed (b) needed
39. 39.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same stick”? (a) we change it (b) we keep it the same (c) we measure it
40. 40.🧺 Which of these is not needed for the shadow clock? (a) a balloon (b) a sunny open place (c) a straight stick (d) chalk to mark shadows

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