Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 843 · 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.🧺 Do we need a battery cell for the shadow clock? (a) needed (b) not needed
2. 2.🧺 Which of these is needed for the shadow clock? (a) a balloon (b) a sunny open place (c) yeast (d) a battery cell
3. 3.📘 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
4. 4.🔍 Which is the odd one out? (a) a book (b) frosted glass (c) a steel plate (d) your hand
5. 5.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is kept the same? (a) shadow length (b) the stick kept upright (c) the time of day
6. 6.🧺 Which of these is needed for the shadow clock? (a) a magnet (b) a balloon (c) chalk to mark shadows (d) a battery cell
7. 7.🔦 Which of these is opaque? (a) butter paper (b) a book (c) clear glass (d) clear plastic film
8. 8.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) chalk to mark shadows (c) a balloon (d) a sunny open place
9. 9.🔮 Predict: on a fully cloudy day, the sundial ___. (a) runs faster (b) shows two times (c) does not work well (d) works better
10. 10.⚖️ 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
11. 11.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) west (b) north (c) east (d) up
12. 12.⚖️ 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
13. 13.🧺 Do we need turmeric powder for the shadow clock? (a) needed (b) not needed
14. 14.True or false: a magnet is not needed for the shadow clock. (a) True (b) False
15. 15.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) short (b) long (c) missing (d) round
16. 16.True or false: your hand is transparent. (a) True (b) False
17. 17.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) yeast (b) a clock to check (c) chalk to mark shadows (d) a straight stick
18. 18.⚖️ 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 change it (c) we measure it
19. 19.🌞 When is a stick’s shadow the shortest? (a) early morning (b) late evening (c) around noon (d) at night
20. 20.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) smaller (b) coloured (c) brighter (d) bigger
21. 21.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the time of day is what we measure. (a) False (b) True
22. 22.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) a battery cell (c) chalk to mark shadows (d) a clock to check
23. 23.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) the same spot (b) the same stick (c) shadow length (d) the time of day
24. 24.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the time of day”? (a) we measure it (b) we change it (c) we keep it the same
25. 25.🔦 Which of these is translucent? (a) a book (b) butter paper (c) a steel plate (d) your hand
26. 26.⚖️ 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
27. 27.🔦 Which of these is transparent? (a) air (b) oily paper (c) frosted glass (d) butter paper
28. 28.🔍 Which is the odd one out? (a) clear plastic film (b) frosted glass (c) tissue paper (d) oily paper
29. 29.True or false: a magnet is needed for the shadow clock. (a) True (b) False
30. 30.⚖️ 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
31. 31.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is the one thing we change? (a) the stick kept upright (b) shadow length (c) the time of day (d) the same spot
32. 32.True or false: a book is translucent. (a) True (b) False
33. 33.🔦 Which of these is opaque? (a) a steel plate (b) air (c) tissue paper (d) clear glass
34. 34.🔦 Is butter paper opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
35. 35.🔦 Which of these is opaque? (a) clean water (b) frosted glass (c) butter paper (d) a wooden board
36. 36.True or false: a book is opaque. (a) True (b) False
37. 37.🧺 Do we need a balloon for the shadow clock? (a) needed (b) not needed
38. 38.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) a clock to check (c) a straight stick (d) a balloon
39. 39.🔍 Which is the odd one out? (a) clear glass (b) clear plastic film (c) air (d) oily paper
40. 40.🔍 Which is the odd one out? (a) tissue paper (b) butter paper (c) a brick (d) frosted glass

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