Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 464 · 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.🧺 Do we need a battery cell for the shadow clock? (a) needed (b) not needed
2. 2.True or false: a straight stick is needed for the shadow clock. (a) False (b) True
3. 3.🧺 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) a straight stick (d) yeast
4. 4.🔍 Which is the odd one out? (a) your hand (b) a brick (c) clear plastic film (d) a wooden board
5. 5.🧺 Which of these is needed for the shadow clock? (a) a mirror (b) turmeric powder (c) a battery cell (d) a clock to check
6. 6.🔦 Which of these is translucent? (a) clean water (b) frosted glass (c) a book (d) air
7. 7.🔦 Which of these is transparent? (a) a book (b) frosted glass (c) butter paper (d) clean water
8. 8.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is the one thing we change? (a) the same stick (b) shadow length (c) the time of day (d) the same spot
9. 9.🔦 Is your hand opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
10. 10.🔍 Which is the odd one out? (a) clear plastic film (b) a brick (c) air (d) clear glass
11. 11.🔦 Which of these is opaque? (a) clean water (b) a steel plate (c) frosted glass (d) clear plastic film
12. 12.🧺 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 battery cell (d) chalk to mark shadows
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 same spot (c) the same stick (d) the time of day
14. 14.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) long (b) short (c) round (d) missing
15. 15.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the stick kept upright”? (a) we keep it the same (b) we change it (c) we measure it
16. 16.🔦 Is a book opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
17. 17.True or false: a clock to check is not needed for the shadow clock. (a) True (b) False
18. 18.🔦 Is frosted glass opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
19. 19.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the time of day”? (a) we measure it (b) we keep it the same (c) we change it
20. 20.🛟 What should you wear for a long time in the hot sun? (a) nothing on your head (b) a raincoat (c) a cap or hat (d) a woollen sweater
21. 21.🔍 Which is the odd one out? (a) tissue paper (b) clean water (c) frosted glass (d) oily paper
22. 22.🛟 While watching shadows outdoors, what must you never do? (a) look straight at the Sun (b) wear a cap (c) mark with chalk (d) sit in the shade
23. 23.True or false: a magnet is not needed for the shadow clock. (a) False (b) True
24. 24.⚖️ 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 keep it the same (c) we measure it
25. 25.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) a straight stick (c) a balloon (d) a sunny open place
26. 26.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is kept the same? (a) shadow length (b) the same spot (c) the time of day
27. 27.True or false: a balloon is not needed for the shadow clock. (a) False (b) True
28. 28.⚖️ 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) True (b) False
29. 29.🔦 Is butter paper opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
30. 30.🌍 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
31. 31.True or false: frosted glass is opaque. (a) True (b) False
32. 32.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same stick”? (a) we measure it (b) we change it (c) we keep it the same
33. 33.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) a sunny open place (c) a mirror (d) a clock to check
34. 34.🧺 Which of these is needed for the shadow clock? (a) yeast (b) chalk to mark shadows (c) a balloon (d) a battery cell
35. 35.🔦 Which of these is transparent? (a) oily paper (b) clear plastic film (c) frosted glass (d) a book
36. 36.True or false: a mirror is needed for the shadow clock. (a) True (b) False
37. 37.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) north (b) east (c) west (d) up
38. 38.🔦 Which of these is translucent? (a) butter paper (b) a wooden board (c) a steel plate (d) clean water
39. 39.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) chalk to mark shadows (c) a balloon (d) a sunny open place
40. 40.True or false: clear glass is transparent. (a) False (b) True

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