Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 860 · 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 needed for the shadow clock? (a) yeast (b) turmeric powder (c) a magnet (d) a sunny open place
2. 2.🔦 Is tissue paper opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
3. 3.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) a sunny open place (c) a balloon (d) chalk to mark shadows
4. 4.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same stick”? (a) we keep it the same (b) we change it (c) we measure it
5. 5.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a balloon (c) chalk to mark shadows (d) a clock to check
6. 6.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same spot is the one thing we change. (a) False (b) True
7. 7.True or false: chalk to mark shadows is not needed for the shadow clock. (a) False (b) True
8. 8.🧺 Do we need turmeric powder for the shadow clock? (a) needed (b) not needed
9. 9.⚖️ 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
10. 10.🔦 Which of these is translucent? (a) clear plastic film (b) frosted glass (c) a book (d) clean water
11. 11.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “shadow length”? (a) we keep it the same (b) we change it (c) we measure it
12. 12.🧺 Do we need a straight stick for the shadow clock? (a) needed (b) not needed
13. 13.🔦 Which of these is transparent? (a) a book (b) frosted glass (c) tissue paper (d) clean water
14. 14.🧺 Do we need yeast for the shadow clock? (a) needed (b) not needed
15. 15.True or false: a straight stick is not needed for the shadow clock. (a) False (b) True
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.🔦 Is a steel plate opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
18. 18.🔦 Is oily paper opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
19. 19.🧺 Which of these is not needed for the shadow clock? (a) a magnet (b) a sunny open place (c) a straight stick (d) a clock to check
20. 20.⚖️ 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
21. 21.🔦 Is butter paper opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
22. 22.🧺 Do we need a magnet for the shadow clock? (a) needed (b) not needed
23. 23.⚖️ 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 stick kept upright (c) the time of day (d) shadow length
24. 24.True or false: yeast is needed for the shadow clock. (a) False (b) True
25. 25.🛟 What should you wear for a long time in the hot sun? (a) a cap or hat (b) a woollen sweater (c) nothing on your head (d) a raincoat
26. 26.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) yeast (c) chalk to mark shadows (d) a straight stick
27. 27.🔦 Which of these is opaque? (a) air (b) tissue paper (c) oily paper (d) a steel plate
28. 28.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) the stick kept upright (b) the same stick (c) the time of day (d) shadow length
29. 29.🔦 Is a wooden board opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
30. 30.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) a straight stick (c) a battery cell (d) a clock to check
31. 31.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same spot”? (a) we measure it (b) we keep it the same (c) we change it
32. 32.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is kept the same. (a) False (b) True
33. 33.True or false: tissue paper is translucent. (a) False (b) True
34. 34.True or false: a mirror is not needed for the shadow clock. (a) True (b) False
35. 35.🔍 Which is the odd one out? (a) clear plastic film (b) air (c) clean water (d) a steel plate
36. 36.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) chalk to mark shadows (c) turmeric powder (d) a clock to check
37. 37.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) smaller (b) brighter (c) bigger (d) coloured
38. 38.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) east (b) north (c) up (d) west
39. 39.🧺 Which of these is needed for the shadow clock? (a) chalk to mark shadows (b) a battery cell (c) yeast (d) turmeric powder
40. 40.🔍 Which is the odd one out? (a) frosted glass (b) butter paper (c) clear plastic film (d) oily paper

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