Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 457 · 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.🔦 Which of these is translucent? (a) a wooden board (b) clear plastic film (c) frosted glass (d) a book
2. 2.🧺 Do we need a clock to check for the shadow clock? (a) needed (b) not needed
3. 3.🔦 Which of these is opaque? (a) your hand (b) oily paper (c) clean water (d) clear glass
4. 4.⚖️ 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
5. 5.⚖️ 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 time of day (d) shadow length
6. 6.True or false: a sunny open place is needed for the shadow clock. (a) True (b) False
7. 7.⚖️ 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) shadow length (c) the time of day
8. 8.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) turmeric powder (c) a clock to check (d) a sunny open place
9. 9.📘 Why does a shadow form? (a) the object is cold (b) an object blocks light (c) the ground is dark (d) light bends round it
10. 10.🔦 Is a book opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
11. 11.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) a magnet (c) a sunny open place (d) a straight stick
12. 12.⚖️ 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
13. 13.🔍 Which is the odd one out? (a) a steel plate (b) frosted glass (c) butter paper (d) tissue paper
14. 14.🔦 Is clear plastic film opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
15. 15.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the stick kept upright”? (a) we keep it the same (b) we change it (c) we measure it
16. 16.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same spot”? (a) we change it (b) we measure it (c) we keep it the same
17. 17.🔦 Which of these is translucent? (a) tissue paper (b) your hand (c) clean water (d) a wooden board
18. 18.⚖️ 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
19. 19.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same spot is what we measure. (a) True (b) False
20. 20.⚖️ 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
21. 21.🔦 Which of these is opaque? (a) oily paper (b) clear glass (c) a brick (d) clean water
22. 22.True or false: butter paper is translucent. (a) True (b) False
23. 23.True or false: a straight stick is not needed for the shadow clock. (a) True (b) False
24. 24.🧺 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) a battery cell
25. 25.🔍 Which is the odd one out? (a) tissue paper (b) clean water (c) clear plastic film (d) clear glass
26. 26.🧺 Do we need turmeric powder for the shadow clock? (a) needed (b) not needed
27. 27.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) a battery cell (c) a straight stick (d) chalk to mark shadows
28. 28.🔦 Which of these is opaque? (a) clean water (b) oily paper (c) air (d) a wooden board
29. 29.🧺 Do we need a straight stick for the shadow clock? (a) not needed (b) needed
30. 30.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) brighter (b) coloured (c) bigger (d) smaller
31. 31.🔍 Which is the odd one out? (a) air (b) clear plastic film (c) a wooden board (d) clear glass
32. 32.🧺 Do we need yeast for the shadow clock? (a) not needed (b) needed
33. 33.🧺 Which of these is needed for the shadow clock? (a) a mirror (b) a clock to check (c) yeast (d) a magnet
34. 34.🔦 Which of these is opaque? (a) a steel plate (b) frosted glass (c) oily paper (d) butter paper
35. 35.⚖️ 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
36. 36.🛟 What should you wear for a long time in the hot sun? (a) a cap or hat (b) nothing on your head (c) a woollen sweater (d) a raincoat
37. 37.🔦 Is oily paper opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
38. 38.True or false: a balloon is not needed for the shadow clock. (a) True (b) False
39. 39.⚖️ 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
40. 40.True or false: a sunny open place is not needed for the shadow clock. (a) False (b) True

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