Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 511 · 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.🧺 Which of these is needed for the shadow clock? (a) a sunny open place (b) a battery cell (c) turmeric powder (d) yeast
2. 2.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) a clock to check (c) turmeric powder (d) chalk to mark shadows
3. 3.True or false: a book is transparent. (a) False (b) True
4. 4.🛟 What should you wear for a long time in the hot sun? (a) a raincoat (b) a cap or hat (c) a woollen sweater (d) nothing on your head
5. 5.⚖️ 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
6. 6.⚖️ 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
7. 7.🔍 Which is the odd one out? (a) a steel plate (b) a book (c) a wooden board (d) clean water
8. 8.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a balloon (c) a sunny open place (d) a straight stick
9. 9.📘 Why does a shadow form? (a) light bends round it (b) the ground is dark (c) the object is cold (d) an object blocks light
10. 10.True or false: a book is translucent. (a) True (b) False
11. 11.🧺 Do we need a battery cell for the shadow clock? (a) not needed (b) needed
12. 12.True or false: a brick is transparent. (a) True (b) False
13. 13.🔍 Which is the odd one out? (a) tissue paper (b) a book (c) frosted glass (d) butter paper
14. 14.🛟 While watching shadows outdoors, what must you never do? (a) wear a cap (b) mark with chalk (c) look straight at the Sun (d) sit in the shade
15. 15.🔮 Predict: on a fully cloudy day, the sundial ___. (a) runs faster (b) works better (c) does not work well (d) shows two times
16. 16.⚖️ 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 spot (c) the time of day (d) the same stick
17. 17.🔍 Which is the odd one out? (a) air (b) clean water (c) oily paper (d) clear plastic film
18. 18.🧺 Which of these is needed for the shadow clock? (a) a mirror (b) turmeric powder (c) a magnet (d) chalk to mark shadows
19. 19.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) the time of day (b) the same spot (c) shadow length (d) the same stick
20. 20.🧺 Which of these is needed for the shadow clock? (a) a magnet (b) a clock to check (c) yeast (d) turmeric powder
21. 21.⚖️ 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 keep it the same (c) we measure it
22. 22.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is kept the same. (a) True (b) False
23. 23.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the stick kept upright”? (a) we measure it (b) we change it (c) we keep it the same
24. 24.🔍 Which is the odd one out? (a) clean water (b) air (c) clear glass (d) a wooden board
25. 25.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) smaller (b) coloured (c) brighter (d) bigger
26. 26.⚖️ 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 stick
27. 27.🔦 Is clear plastic film opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
28. 28.True or false: a battery cell is needed for the shadow clock. (a) True (b) False
29. 29.🔍 Which is the odd one out? (a) frosted glass (b) clear glass (c) air (d) clean water
30. 30.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same spot is what we measure. (a) False (b) True
31. 31.⚖️ 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
32. 32.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) short (b) round (c) missing (d) long
33. 33.🧺 Which of these is needed for the shadow clock? (a) a balloon (b) a straight stick (c) a battery cell (d) turmeric powder
34. 34.⚖️ 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
35. 35.True or false: a brick is translucent. (a) False (b) True
36. 36.🔦 Which of these is opaque? (a) clear glass (b) a book (c) butter paper (d) clean water
37. 37.🌍 Why does the stick’s shadow move during the day? (a) Earth keeps spinning (b) the stick grows (c) the ground slides (d) the stick walks
38. 38.🕰️ What is a sundial used for? (a) telling the time (b) making rainbows (c) measuring rain (d) weighing things
39. 39.🧺 Do we need chalk to mark shadows for the shadow clock? (a) not needed (b) needed
40. 40.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) north (b) east (c) west (d) up

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