Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 356 · 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.🛟 What should you wear for a long time in the hot sun? (a) nothing on your head (b) a cap or hat (c) a raincoat (d) a woollen sweater
2. 2.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) a straight stick (c) a battery cell (d) chalk to mark shadows
3. 3.True or false: a book is opaque. (a) False (b) True
4. 4.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) chalk to mark shadows (c) turmeric powder (d) a sunny open place
5. 5.True or false: a sunny open place is needed for the shadow clock. (a) False (b) True
6. 6.🧺 Do we need turmeric powder for the shadow clock? (a) needed (b) not needed
7. 7.🔦 Is clear glass opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
8. 8.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) bigger (b) smaller (c) coloured (d) brighter
9. 9.🔦 Which of these is translucent? (a) a book (b) a brick (c) tissue paper (d) clean water
10. 10.🔦 Is oily paper opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
11. 11.🔮 Predict: on a fully cloudy day, the sundial ___. (a) does not work well (b) works better (c) runs faster (d) shows two times
12. 12.🧺 Which of these is not needed for the shadow clock? (a) a clock to check (b) a straight stick (c) a sunny open place (d) yeast
13. 13.📘 Why does a shadow form? (a) an object blocks light (b) light bends round it (c) the ground is dark (d) the object is cold
14. 14.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a balloon (b) a sunny open place (c) a straight stick (d) chalk to mark shadows
15. 15.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same spot is kept the same. (a) True (b) False
16. 16.True or false: clear plastic film is transparent. (a) False (b) True
17. 17.⚖️ 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
18. 18.🔦 Is clear plastic film opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
19. 19.🧺 Which of these is needed for the shadow clock? (a) chalk to mark shadows (b) a magnet (c) a mirror (d) a balloon
20. 20.🔦 Is your hand opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
21. 21.🧺 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 magnet
22. 22.⚖️ 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 measure it (c) we keep it the same
23. 23.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) east (b) north (c) west (d) up
24. 24.⚖️ 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) the stick kept upright (c) shadow length
25. 25.🔍 Which is the odd one out? (a) clear plastic film (b) clean water (c) a wooden board (d) air
26. 26.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) a clock to check (c) a sunny open place (d) a balloon
27. 27.🧺 Do we need yeast for the shadow clock? (a) not needed (b) needed
28. 28.🔦 Which of these is transparent? (a) frosted glass (b) clear plastic film (c) tissue paper (d) a wooden board
29. 29.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) round (b) missing (c) short (d) long
30. 30.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same spot is the one thing we change. (a) True (b) False
31. 31.True or false: a clock to check is needed for the shadow clock. (a) True (b) False
32. 32.⚖️ 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
33. 33.🛟 While watching shadows outdoors, what must you never do? (a) look straight at the Sun (b) sit in the shade (c) mark with chalk (d) wear a cap
34. 34.⚖️ 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 same spot (d) the time of day
35. 35.⚖️ 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
36. 36.True or false: a straight stick is not needed for the shadow clock. (a) False (b) True
37. 37.True or false: chalk to mark shadows is not needed for the shadow clock. (a) False (b) True
38. 38.🧺 Which of these is needed for the shadow clock? (a) a battery cell (b) a balloon (c) a clock to check (d) turmeric powder
39. 39.🔍 Which is the odd one out? (a) butter paper (b) tissue paper (c) frosted glass (d) clear plastic film
40. 40.True or false: a book is transparent. (a) False (b) True

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