Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 871 · 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.⚖️ 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
2. 2.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a straight stick (c) chalk to mark shadows (d) turmeric powder
3. 3.True or false: a clock to check is not needed for the shadow clock. (a) False (b) True
4. 4.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a clock to check (c) chalk to mark shadows (d) yeast
5. 5.⚖️ 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
6. 6.🛟 What should you wear for a long time in the hot sun? (a) a woollen sweater (b) a raincoat (c) a cap or hat (d) nothing on your head
7. 7.🧺 Which of these is not needed for the shadow clock? (a) a clock to check (b) a straight stick (c) turmeric powder (d) chalk to mark shadows
8. 8.🛟 While watching shadows outdoors, what must you never do? (a) wear a cap (b) look straight at the Sun (c) mark with chalk (d) sit in the shade
9. 9.🧺 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 sunny open place
10. 10.🧺 Which of these is needed for the shadow clock? (a) turmeric powder (b) yeast (c) a sunny open place (d) a mirror
11. 11.🔍 Which is the odd one out? (a) your hand (b) clear plastic film (c) air (d) clear glass
12. 12.True or false: clear plastic film is opaque. (a) True (b) False
13. 13.🔍 Which is the odd one out? (a) clear plastic film (b) tissue paper (c) oily paper (d) butter paper
14. 14.🧺 Which of these is needed for the shadow clock? (a) a straight stick (b) a battery cell (c) a balloon (d) a magnet
15. 15.📘 Why does a shadow form? (a) an object blocks light (b) light bends round it (c) the object is cold (d) the ground is dark
16. 16.🔦 Which of these is opaque? (a) butter paper (b) a steel plate (c) clear glass (d) frosted glass
17. 17.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) east (b) north (c) up (d) west
18. 18.🔦 Which of these is translucent? (a) clean water (b) a steel plate (c) tissue paper (d) a wooden board
19. 19.🔦 Is a brick opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
20. 20.🧺 Do we need chalk to mark shadows for the shadow clock? (a) needed (b) not needed
21. 21.⚖️ 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
22. 22.🔦 Which of these is opaque? (a) frosted glass (b) butter paper (c) a wooden board (d) air
23. 23.⚖️ 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 keep it the same (c) we change it
24. 24.🔦 Which of these is transparent? (a) a wooden board (b) a book (c) butter paper (d) air
25. 25.⚖️ 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 measure it (c) we keep it the same
26. 26.True or false: a magnet is needed for the shadow clock. (a) True (b) False
27. 27.⚖️ 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 time of day (c) the same spot (d) shadow length
28. 28.🔦 Which of these is translucent? (a) oily paper (b) clear plastic film (c) clear glass (d) a steel plate
29. 29.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) bigger (b) smaller (c) coloured (d) brighter
30. 30.🔦 Is tissue paper opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
31. 31.🧺 Do we need a sunny open place for the shadow clock? (a) not needed (b) needed
32. 32.🔍 Which is the odd one out? (a) air (b) clean water (c) frosted glass (d) clear plastic film
33. 33.True or false: a mirror is not needed for the shadow clock. (a) False (b) True
34. 34.🔍 Which is the odd one out? (a) butter paper (b) oily paper (c) clean water (d) tissue paper
35. 35.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: shadow length is the one thing we change. (a) True (b) False
36. 36.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a balloon (c) a sunny open place (d) chalk to mark shadows
37. 37.⚖️ 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 spot (c) shadow length
38. 38.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the stick kept upright is kept the same. (a) False (b) True
39. 39.🌞 When is a stick’s shadow the shortest? (a) around noon (b) early morning (c) at night (d) late evening
40. 40.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) a magnet (c) a clock to check (d) a straight stick

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