Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 597 · 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? Which of these is what we measure? (a) shadow length (b) the stick kept upright (c) the same spot (d) the same stick
2. 2.🔍 Which is the odd one out? (a) a book (b) frosted glass (c) a wooden board (d) a steel plate
3. 3.🔍 Which is the odd one out? (a) a wooden board (b) clear glass (c) clean water (d) clear plastic film
4. 4.🔦 Which of these is translucent? (a) a wooden board (b) your hand (c) oily paper (d) air
5. 5.True or false: a battery cell is needed for the shadow clock. (a) False (b) True
6. 6.🧺 Do we need a balloon for the shadow clock? (a) needed (b) not needed
7. 7.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) chalk to mark shadows (c) a sunny open place (d) a magnet
8. 8.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: shadow length is the one thing we change. (a) False (b) True
9. 9.🧺 Which of these is needed for the shadow clock? (a) turmeric powder (b) chalk to mark shadows (c) a mirror (d) yeast
10. 10.⚖️ 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) False (b) True
11. 11.🔦 Which of these is opaque? (a) clean water (b) clear plastic film (c) oily paper (d) a steel plate
12. 12.🧺 Which of these is needed for the shadow clock? (a) a mirror (b) a clock to check (c) yeast (d) a magnet
13. 13.🧺 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 sunny open place (d) yeast
14. 14.🔦 Which of these is translucent? (a) your hand (b) tissue paper (c) a steel plate (d) clean water
15. 15.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: shadow length is what we measure. (a) False (b) True
16. 16.🧺 Do we need a battery cell for the shadow clock? (a) not needed (b) needed
17. 17.True or false: chalk to mark shadows is not needed for the shadow clock. (a) False (b) True
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 change it (b) we measure it (c) we keep it the same
19. 19.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: shadow length is kept the same. (a) False (b) True
20. 20.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a clock to check (c) a balloon (d) a sunny open place
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.🔦 Which of these is opaque? (a) clean water (b) oily paper (c) a brick (d) frosted glass
23. 23.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) a clock to check (c) a battery cell (d) a straight stick
24. 24.True or false: a book is opaque. (a) True (b) False
25. 25.🌞 When is a stick’s shadow the shortest? (a) early morning (b) late evening (c) around noon (d) at night
26. 26.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) round (b) long (c) missing (d) short
27. 27.⚖️ 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 keep it the same (c) we change it
28. 28.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) chalk to mark shadows (c) a battery cell (d) a clock to check
29. 29.True or false: frosted glass is opaque. (a) True (b) False
30. 30.🕰️ What is a sundial used for? (a) weighing things (b) measuring rain (c) making rainbows (d) telling the time
31. 31.⚖️ 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
32. 32.True or false: clear plastic film is transparent. (a) True (b) False
33. 33.📘 Why does a shadow form? (a) an object blocks light (b) light bends round it (c) the ground is dark (d) the object is cold
34. 34.🔍 Which is the odd one out? (a) a steel plate (b) a brick (c) oily paper (d) your hand
35. 35.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) coloured (b) bigger (c) smaller (d) brighter
36. 36.⚖️ 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
37. 37.True or false: a sunny open place is needed for the shadow clock. (a) False (b) True
38. 38.🛟 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
39. 39.🔍 Which is the odd one out? (a) tissue paper (b) clear glass (c) frosted glass (d) butter paper
40. 40.⚖️ 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) the time of day (c) shadow length (d) the same stick

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