Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 488 · 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.🌍 Why does the stick’s shadow move during the day? (a) the stick grows (b) the stick walks (c) Earth keeps spinning (d) the ground slides
2. 2.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: shadow length is the one thing we change. (a) True (b) False
3. 3.🧺 Do we need a sunny open place for the shadow clock? (a) not needed (b) needed
4. 4.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) chalk to mark shadows (c) yeast (d) a straight stick
5. 5.🧺 Do we need chalk to mark shadows for the shadow clock? (a) not needed (b) needed
6. 6.🧺 Do we need a battery cell for the shadow clock? (a) needed (b) not needed
7. 7.🔦 Which of these is translucent? (a) a wooden board (b) a brick (c) clean water (d) frosted glass
8. 8.🔦 Is oily paper opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
9. 9.🔮 Predict: on a fully cloudy day, the sundial ___. (a) runs faster (b) works better (c) shows two times (d) does not work well
10. 10.🛟 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
11. 11.True or false: butter paper is transparent. (a) True (b) False
12. 12.🔦 Which of these is transparent? (a) clear plastic film (b) oily paper (c) a steel plate (d) a book
13. 13.⚖️ 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
14. 14.🧺 Do we need a magnet for the shadow clock? (a) needed (b) not needed
15. 15.🔦 Is tissue paper opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
16. 16.⚖️ 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
17. 17.⚖️ 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
18. 18.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) bigger (b) smaller (c) brighter (d) coloured
19. 19.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “shadow length”? (a) we change it (b) we keep it the same (c) we measure it
20. 20.🔦 Which of these is transparent? (a) air (b) tissue paper (c) frosted glass (d) your hand
21. 21.📘 Why does a shadow form? (a) the object is cold (b) an object blocks light (c) light bends round it (d) the ground is dark
22. 22.🔦 Is a brick opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
23. 23.🧺 Which of these is needed for the shadow clock? (a) a balloon (b) chalk to mark shadows (c) turmeric powder (d) a mirror
24. 24.🛟 What should you wear for a long time in the hot sun? (a) a cap or hat (b) nothing on your head (c) a woollen sweater (d) a raincoat
25. 25.🧺 Which of these is needed for the shadow clock? (a) a balloon (b) a battery cell (c) yeast (d) a clock to check
26. 26.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the time of day is kept the same. (a) False (b) True
27. 27.⚖️ 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
28. 28.🔦 Is your hand opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
29. 29.🔍 Which is the odd one out? (a) a brick (b) a wooden board (c) a steel plate (d) clean water
30. 30.🔦 Which of these is translucent? (a) your hand (b) air (c) a wooden board (d) tissue paper
31. 31.True or false: a book is translucent. (a) False (b) True
32. 32.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: shadow length is kept the same. (a) True (b) False
33. 33.🧺 Do we need turmeric powder for the shadow clock? (a) needed (b) not needed
34. 34.🔦 Which of these is transparent? (a) a brick (b) tissue paper (c) clear glass (d) oily paper
35. 35.⚖️ 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 time of day (c) the same stick (d) the same spot
36. 36.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) yeast (c) a clock to check (d) a straight stick
37. 37.🔍 Which is the odd one out? (a) clear glass (b) a wooden board (c) clear plastic film (d) air
38. 38.🔦 Is a wooden board opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
39. 39.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) long (b) missing (c) round (d) short
40. 40.🧺 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 sunny open place (d) a mirror

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