Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 551 · 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.True or false: oily paper is translucent. (a) False (b) True
2. 2.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is kept the same? (a) the time of day (b) shadow length (c) the same spot
3. 3.True or false: a book is opaque. (a) True (b) False
4. 4.True or false: a sunny open place is needed for the shadow clock. (a) False (b) True
5. 5.🔍 Which is the odd one out? (a) clear plastic film (b) clear glass (c) clean water (d) your hand
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) shadow length (b) the same stick (c) the stick kept upright (d) the time of day
7. 7.📘 Why does a shadow form? (a) the ground is dark (b) light bends round it (c) an object blocks light (d) the object is cold
8. 8.True or false: chalk to mark shadows is not needed for the shadow clock. (a) True (b) False
9. 9.True or false: a battery cell is needed for the shadow clock. (a) True (b) False
10. 10.🔍 Which is the odd one out? (a) tissue paper (b) butter paper (c) oily paper (d) a wooden board
11. 11.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same spot is kept the same. (a) True (b) False
12. 12.⚖️ 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) the time of day (c) shadow length
13. 13.🕰️ What is a sundial used for? (a) measuring rain (b) making rainbows (c) weighing things (d) telling the time
14. 14.⚖️ 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
15. 15.🔍 Which is the odd one out? (a) clean water (b) tissue paper (c) clear glass (d) clear plastic film
16. 16.🔦 Is a wooden board opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
17. 17.🔍 Which is the odd one out? (a) a brick (b) a steel plate (c) air (d) a wooden board
18. 18.🌍 Why does the stick’s shadow move during the day? (a) the stick walks (b) the ground slides (c) the stick grows (d) Earth keeps spinning
19. 19.🧺 Do we need a balloon for the shadow clock? (a) needed (b) not needed
20. 20.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is what we measure. (a) False (b) True
21. 21.True or false: a straight stick is not needed for the shadow clock. (a) True (b) False
22. 22.🧺 Do we need a mirror for the shadow clock? (a) not needed (b) needed
23. 23.🛟 While watching shadows outdoors, what must you never do? (a) look straight at the Sun (b) sit in the shade (c) mark with chalk (d) wear a cap
24. 24.🔍 Which is the odd one out? (a) a brick (b) a book (c) a wooden board (d) clean water
25. 25.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a mirror (c) a straight stick (d) chalk to mark shadows
26. 26.🧺 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 balloon (d) a clock to check
27. 27.True or false: a magnet is needed for the shadow clock. (a) True (b) False
28. 28.🔦 Which of these is transparent? (a) your hand (b) butter paper (c) a brick (d) clear plastic film
29. 29.🛟 What should you wear for a long time in the hot sun? (a) a woollen sweater (b) a raincoat (c) a cap or hat (d) nothing on your head
30. 30.True or false: clean water is transparent. (a) False (b) True
31. 31.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) missing (b) short (c) long (d) round
32. 32.🔦 Is your hand opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
33. 33.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) a mirror (c) a straight stick (d) chalk to mark shadows
34. 34.True or false: tissue paper is transparent. (a) True (b) False
35. 35.🔮 Predict: on a fully cloudy day, the sundial ___. (a) shows two times (b) runs faster (c) works better (d) does not work well
36. 36.🔍 Which is the odd one out? (a) tissue paper (b) clear plastic film (c) butter paper (d) frosted glass
37. 37.⚖️ 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
38. 38.🔍 Which is the odd one out? (a) clean water (b) clear glass (c) a steel plate (d) air
39. 39.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same stick”? (a) we change it (b) we keep it the same (c) we measure it
40. 40.⚖️ 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

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