Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 463 · 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? True or false: the same stick is the one thing we change. (a) False (b) True
2. 2.🛟 What should you wear for a long time in the hot sun? (a) a woollen sweater (b) a cap or hat (c) nothing on your head (d) a raincoat
3. 3.🧺 Do we need a mirror for the shadow clock? (a) needed (b) not needed
4. 4.🧺 Which of these is needed for the shadow clock? (a) a sunny open place (b) a magnet (c) a battery cell (d) a balloon
5. 5.⚖️ 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) shadow length (c) the stick kept upright (d) the same stick
6. 6.⚖️ 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 time of day (c) the same stick (d) shadow length
7. 7.🔦 Is air opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
8. 8.⚖️ 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 time of day (c) the same spot
9. 9.📘 Why does a shadow form? (a) the ground is dark (b) an object blocks light (c) light bends round it (d) the object is cold
10. 10.🔮 Predict: on a fully cloudy day, the sundial ___. (a) shows two times (b) works better (c) runs faster (d) does not work well
11. 11.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) round (b) long (c) short (d) missing
12. 12.🔍 Which is the odd one out? (a) a steel plate (b) clean water (c) clear glass (d) air
13. 13.🔦 Which of these is translucent? (a) air (b) a book (c) clear plastic film (d) butter paper
14. 14.True or false: a straight stick is not needed for the shadow clock. (a) True (b) False
15. 15.🔍 Which is the odd one out? (a) frosted glass (b) a wooden board (c) tissue paper (d) butter paper
16. 16.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) a sunny open place (c) a straight stick (d) a balloon
17. 17.🔍 Which is the odd one out? (a) tissue paper (b) clean water (c) butter paper (d) oily paper
18. 18.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) brighter (b) bigger (c) coloured (d) smaller
19. 19.True or false: a book is transparent. (a) False (b) True
20. 20.🔍 Which is the odd one out? (a) your hand (b) air (c) clear plastic film (d) clean water
21. 21.True or false: chalk to mark shadows is not needed for the shadow clock. (a) True (b) False
22. 22.True or false: a steel plate is transparent. (a) False (b) True
23. 23.🛟 While watching shadows outdoors, what must you never do? (a) look straight at the Sun (b) wear a cap (c) sit in the shade (d) mark with chalk
24. 24.⚖️ 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 same stick (c) the time of day
25. 25.🔦 Which of these is transparent? (a) tissue paper (b) air (c) a wooden board (d) a brick
26. 26.🧺 Which of these is not needed for the shadow clock? (a) a mirror (b) a clock to check (c) a sunny open place (d) chalk to mark shadows
27. 27.🔦 Which of these is opaque? (a) tissue paper (b) frosted glass (c) oily paper (d) a steel plate
28. 28.🧺 Do we need a battery cell for the shadow clock? (a) needed (b) not needed
29. 29.🧺 Do we need a sunny open place for the shadow clock? (a) not needed (b) needed
30. 30.🧺 Do we need turmeric powder for the shadow clock? (a) not needed (b) needed
31. 31.🔦 Which of these is opaque? (a) butter paper (b) frosted glass (c) clear glass (d) your hand
32. 32.True or false: a sunny open place is not needed for the shadow clock. (a) False (b) True
33. 33.🔦 Is tissue paper opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
34. 34.🔍 Which is the odd one out? (a) air (b) butter paper (c) oily paper (d) tissue 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.🔦 Which of these is opaque? (a) butter paper (b) air (c) oily paper (d) a brick
37. 37.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) a straight stick (c) chalk to mark shadows (d) a battery cell
38. 38.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) turmeric powder (c) chalk to mark shadows (d) a sunny open place
39. 39.🔦 Which of these is transparent? (a) oily paper (b) tissue paper (c) clear glass (d) a wooden board
40. 40.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a battery cell (b) a straight stick (c) a clock to check (d) a sunny open place

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