Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 234 · 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.🧺 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 balloon (d) chalk to mark shadows
2. 2.🔦 Is a brick opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
3. 3.🧺 Which of these is not needed for the shadow clock? (a) a mirror (b) a sunny open place (c) a clock to check (d) chalk to mark shadows
4. 4.True or false: a battery cell is needed for the shadow clock. (a) False (b) True
5. 5.⚖️ 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
6. 6.⚖️ 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
7. 7.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) bigger (b) smaller (c) coloured (d) brighter
8. 8.🧺 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
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 opaque? (a) butter paper (b) clear glass (c) a brick (d) frosted glass
11. 11.True or false: a brick is opaque. (a) True (b) False
12. 12.🌍 Why does the stick’s shadow move during the day? (a) the stick walks (b) the stick grows (c) Earth keeps spinning (d) the ground slides
13. 13.🔦 Is a steel plate opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
14. 14.🔦 Which of these is transparent? (a) a wooden board (b) a brick (c) frosted glass (d) clean water
15. 15.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) a clock to check (c) turmeric powder (d) a sunny open place
16. 16.🧺 Which of these is needed for the shadow clock? (a) turmeric powder (b) a mirror (c) chalk to mark shadows (d) a magnet
17. 17.🔦 Which of these is opaque? (a) butter paper (b) air (c) oily paper (d) a book
18. 18.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a straight stick (c) yeast (d) a sunny open place
19. 19.⚖️ 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
20. 20.🌞 When is a stick’s shadow the shortest? (a) early morning (b) at night (c) around noon (d) late evening
21. 21.🛟 What should you wear for a long time in the hot sun? (a) a woollen sweater (b) nothing on your head (c) a cap or hat (d) a raincoat
22. 22.⚖️ 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
23. 23.🧺 Which of these is needed for the shadow clock? (a) a mirror (b) a battery cell (c) a straight stick (d) turmeric powder
24. 24.🧺 Which of these is needed for the shadow clock? (a) a magnet (b) a balloon (c) a clock to check (d) yeast
25. 25.🧺 Which of these is not needed for the shadow clock? (a) a clock to check (b) a sunny open place (c) turmeric powder (d) chalk to mark shadows
26. 26.🔦 Which of these is translucent? (a) frosted glass (b) air (c) a steel plate (d) a brick
27. 27.🧺 Which of these is needed for the shadow clock? (a) a magnet (b) yeast (c) a sunny open place (d) turmeric powder
28. 28.🔮 Predict: on a fully cloudy day, the sundial ___. (a) shows two times (b) does not work well (c) runs faster (d) works better
29. 29.🧺 Do we need turmeric powder for the shadow clock? (a) not needed (b) needed
30. 30.True or false: a steel plate is opaque. (a) True (b) False
31. 31.🔦 Is tissue paper opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
32. 32.⚖️ 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
33. 33.True or false: a book is translucent. (a) False (b) True
34. 34.True or false: chalk to mark shadows is needed for the shadow clock. (a) True (b) False
35. 35.⚖️ 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
36. 36.🧺 Do we need yeast for the shadow clock? (a) needed (b) not needed
37. 37.⚖️ 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
38. 38.🧺 Do we need a battery cell for the shadow clock? (a) needed (b) not needed
39. 39.⚖️ 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 measure it (c) we change it
40. 40.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) a clock to check (c) a straight stick (d) a magnet

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