Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 55 · 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: a wooden board is transparent. (a) True (b) False
2. 2.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) short (b) round (c) missing (d) long
3. 3.⚖️ 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 stick kept upright
4. 4.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) yeast (b) a clock to check (c) a straight stick (d) chalk to mark shadows
5. 5.🧺 Do we need a battery cell for the shadow clock? (a) not needed (b) needed
6. 6.🔍 Which is the odd one out? (a) butter paper (b) oily paper (c) frosted glass (d) your hand
7. 7.🧺 Do we need a straight stick for the shadow clock? (a) needed (b) not needed
8. 8.🔍 Which is the odd one out? (a) clear glass (b) clean water (c) a wooden board (d) air
9. 9.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “shadow length”? (a) we keep it the same (b) we measure it (c) we change it
10. 10.🔦 Is a brick opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
11. 11.🔦 Which of these is translucent? (a) clean water (b) butter paper (c) a steel plate (d) clear plastic film
12. 12.⚖️ 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 time of day (c) the stick kept upright (d) shadow length
13. 13.🧺 Do we need a mirror for the shadow clock? (a) not needed (b) needed
14. 14.🧺 Which of these is needed for the shadow clock? (a) turmeric powder (b) a mirror (c) a clock to check (d) a balloon
15. 15.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a balloon (c) a straight stick (d) chalk to mark shadows
16. 16.🛟 What should you wear for a long time in the hot sun? (a) a woollen sweater (b) a cap or hat (c) nothing on your head (d) a raincoat
17. 17.🌞 When is a stick’s shadow the shortest? (a) late evening (b) at night (c) around noon (d) early morning
18. 18.🔦 Is frosted glass opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
19. 19.🔦 Which of these is transparent? (a) clear glass (b) frosted glass (c) a wooden board (d) a brick
20. 20.True or false: a clock to check is not needed for the shadow clock. (a) True (b) False
21. 21.🔦 Is clear plastic film opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
22. 22.🧺 Which of these is needed for the shadow clock? (a) a magnet (b) a battery cell (c) a straight stick (d) a mirror
23. 23.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) brighter (b) coloured (c) bigger (d) smaller
24. 24.🔍 Which is the odd one out? (a) clean water (b) clear glass (c) air (d) butter paper
25. 25.⚖️ 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
26. 26.🔦 Which of these is opaque? (a) clear glass (b) frosted glass (c) a wooden board (d) butter paper
27. 27.⚖️ 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
28. 28.True or false: your hand is translucent. (a) False (b) True
29. 29.True or false: a magnet is not needed for the shadow clock. (a) True (b) False
30. 30.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) east (b) west (c) north (d) up
31. 31.🧺 Which of these is not needed for the shadow clock? (a) a clock to check (b) a magnet (c) a sunny open place (d) chalk to mark shadows
32. 32.🌍 Why does the stick’s shadow move during the day? (a) Earth keeps spinning (b) the ground slides (c) the stick grows (d) the stick walks
33. 33.True or false: a magnet is needed for the shadow clock. (a) True (b) False
34. 34.🛟 While watching shadows outdoors, what must you never do? (a) wear a cap (b) sit in the shade (c) look straight at the Sun (d) mark with chalk
35. 35.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) a clock to check (c) a balloon (d) a straight stick
36. 36.🔦 Which of these is translucent? (a) clean water (b) tissue paper (c) a wooden board (d) a book
37. 37.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a mirror (b) chalk to mark shadows (c) a straight stick (d) a clock to check
38. 38.🧺 Do we need a sunny open place for the shadow clock? (a) needed (b) not needed
39. 39.⚖️ 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
40. 40.🧺 Which of these is needed for the shadow clock? (a) yeast (b) a mirror (c) turmeric powder (d) a sunny open place

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