Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 929 · 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.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) missing (b) short (c) round (d) long
2. 2.🧺 Do we need a straight stick for the shadow clock? (a) not needed (b) needed
3. 3.🧺 Do we need a battery cell for the shadow clock? (a) needed (b) not needed
4. 4.🧺 Which of these is needed for the shadow clock? (a) a magnet (b) turmeric powder (c) chalk to mark shadows (d) yeast
5. 5.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “shadow length”? (a) we change it (b) we keep it the same (c) we measure it
6. 6.🧺 Which of these is needed for the shadow clock? (a) yeast (b) a balloon (c) a sunny open place (d) a battery cell
7. 7.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) bigger (b) smaller (c) brighter (d) coloured
8. 8.🔮 Predict: on a fully cloudy day, the sundial ___. (a) does not work well (b) runs faster (c) shows two times (d) works better
9. 9.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is the one thing we change? (a) the time of day (b) the same stick (c) the stick kept upright (d) shadow length
10. 10.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the stick kept upright”? (a) we change it (b) we measure it (c) we keep it the same
11. 11.🔦 Which of these is translucent? (a) air (b) a wooden board (c) clean water (d) frosted glass
12. 12.True or false: oily paper is opaque. (a) True (b) False
13. 13.⚖️ 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 time of day (c) the same stick (d) the stick kept upright
14. 14.🔦 Which of these is transparent? (a) a brick (b) tissue paper (c) a wooden board (d) air
15. 15.True or false: a mirror is needed for the shadow clock. (a) True (b) False
16. 16.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) up (b) east (c) north (d) west
17. 17.🔦 Is your hand opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
18. 18.🔦 Which of these is translucent? (a) tissue paper (b) clear plastic film (c) a book (d) a wooden board
19. 19.🔦 Which of these is translucent? (a) a wooden board (b) butter paper (c) a book (d) your hand
20. 20.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) turmeric powder (c) a straight stick (d) a clock to check
21. 21.🔦 Which of these is opaque? (a) a steel plate (b) clean water (c) frosted glass (d) butter paper
22. 22.🔍 Which is the odd one out? (a) tissue paper (b) oily paper (c) a book (d) frosted glass
23. 23.🛟 While watching shadows outdoors, what must you never do? (a) mark with chalk (b) look straight at the Sun (c) wear a cap (d) sit in the shade
24. 24.🔦 Is tissue paper opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
25. 25.🔍 Which is the odd one out? (a) butter paper (b) your hand (c) tissue paper (d) frosted glass
26. 26.True or false: a battery cell is needed for the shadow clock. (a) True (b) False
27. 27.🧺 Do we need chalk to mark shadows for the shadow clock? (a) needed (b) not needed
28. 28.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the time of day”? (a) we keep it the same (b) we change it (c) we measure it
29. 29.🔍 Which is the odd one out? (a) a steel plate (b) a book (c) your hand (d) butter paper
30. 30.True or false: a straight stick is not needed for the shadow clock. (a) True (b) False
31. 31.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a balloon (b) a straight stick (c) a clock to check (d) chalk to mark shadows
32. 32.⚖️ 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) True (b) False
33. 33.⚖️ 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
34. 34.📘 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
35. 35.True or false: your hand is transparent. (a) False (b) True
36. 36.True or false: clear plastic film is transparent. (a) False (b) True
37. 37.🕰️ What is a sundial used for? (a) telling the time (b) measuring rain (c) making rainbows (d) weighing things
38. 38.⚖️ 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 measure it (c) we change it
39. 39.🔦 Is air opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
40. 40.🧺 Which of these is needed for the shadow clock? (a) a battery cell (b) a magnet (c) a straight stick (d) turmeric powder

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