Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 851 · 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: on a fully cloudy day, the sundial ___. (a) works better (b) does not work well (c) runs faster (d) shows two times
2. 2.🔍 Which is the odd one out? (a) oily paper (b) tissue paper (c) air (d) butter paper
3. 3.🌍 Why does the stick’s shadow move during the day? (a) the ground slides (b) the stick grows (c) Earth keeps spinning (d) the stick walks
4. 4.True or false: a balloon is not needed for the shadow clock. (a) True (b) False
5. 5.🕰️ What is a sundial used for? (a) weighing things (b) making rainbows (c) measuring rain (d) telling the time
6. 6.True or false: yeast is not needed for the shadow clock. (a) True (b) False
7. 7.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a battery cell (b) a clock to check (c) a sunny open place (d) a straight stick
8. 8.🔦 Which of these is opaque? (a) frosted glass (b) oily paper (c) a wooden board (d) clean water
9. 9.⚖️ 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 measure it (c) we change it
10. 10.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) west (b) east (c) up (d) north
11. 11.🔦 Which of these is opaque? (a) clear plastic film (b) tissue paper (c) clean water (d) a steel plate
12. 12.🧺 Do we need a straight stick for the shadow clock? (a) not needed (b) needed
13. 13.🛟 What should you wear for a long time in the hot sun? (a) a cap or hat (b) a woollen sweater (c) a raincoat (d) nothing on your head
14. 14.🧺 Do we need a mirror for the shadow clock? (a) not needed (b) needed
15. 15.🔍 Which is the odd one out? (a) your hand (b) a wooden board (c) a steel plate (d) frosted glass
16. 16.🛟 While watching shadows outdoors, what must you never do? (a) mark with chalk (b) look straight at the Sun (c) sit in the shade (d) wear a cap
17. 17.🔍 Which is the odd one out? (a) clear glass (b) clear plastic film (c) your hand (d) clean water
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 measure it (b) we change it (c) we keep it the same
19. 19.🔍 Which is the odd one out? (a) oily paper (b) butter paper (c) clean water (d) tissue paper
20. 20.True or false: chalk to mark shadows is needed for the shadow clock. (a) False (b) True
21. 21.🔍 Which is the odd one out? (a) oily paper (b) tissue paper (c) frosted glass (d) a wooden board
22. 22.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a sunny open place (c) a mirror (d) chalk to mark shadows
23. 23.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) a balloon (c) a clock to check (d) a straight stick
24. 24.🔦 Is a book opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
25. 25.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a magnet (b) a sunny open place (c) a clock to check (d) chalk to mark shadows
26. 26.True or false: a straight stick is needed for the shadow clock. (a) True (b) False
27. 27.True or false: frosted glass is translucent. (a) True (b) False
28. 28.⚖️ 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 measure it (c) we keep it the same
29. 29.⚖️ 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 same stick (c) the time of day (d) the same spot
30. 30.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the stick kept upright is kept the same. (a) False (b) True
31. 31.🔍 Which is the odd one out? (a) clear glass (b) tissue paper (c) air (d) clean water
32. 32.⚖️ 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) the time of day (d) shadow length
33. 33.True or false: a clock to check is not needed for the shadow clock. (a) True (b) False
34. 34.⚖️ 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
35. 35.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) short (b) long (c) round (d) missing
36. 36.True or false: a sunny open place is not needed for the shadow clock. (a) True (b) False
37. 37.📘 Why does a shadow form? (a) the ground is dark (b) light bends round it (c) the object is cold (d) an object blocks light
38. 38.⚖️ 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) shadow length (c) the time of day
39. 39.True or false: a book is transparent. (a) False (b) True
40. 40.True or false: a sunny open place is needed for the shadow clock. (a) True (b) False

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