Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 271 · 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 is the odd one out? (a) butter paper (b) oily paper (c) clear plastic film (d) frosted glass
2. 2.🔦 Which of these is translucent? (a) frosted glass (b) air (c) a book (d) clear plastic film
3. 3.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) a mirror (c) a clock to check (d) a straight stick
4. 4.🔦 Which of these is transparent? (a) a brick (b) a steel plate (c) a book (d) clear plastic film
5. 5.True or false: clean water is transparent. (a) False (b) True
6. 6.⚖️ 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 spot (b) the same stick (c) the time of day (d) the stick kept upright
7. 7.True or false: your hand is opaque. (a) False (b) True
8. 8.🔦 Is clean water opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
9. 9.🔦 Which of these is transparent? (a) butter paper (b) a book (c) air (d) your hand
10. 10.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a sunny open place (c) yeast (d) a clock to check
11. 11.🔦 Is butter paper opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
12. 12.🔮 Predict: on a fully cloudy day, the sundial ___. (a) runs faster (b) works better (c) shows two times (d) does not work well
13. 13.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is kept the same? (a) the stick kept upright (b) shadow length (c) the time of day
14. 14.📘 Why does a shadow form? (a) the ground is dark (b) an object blocks light (c) light bends round it (d) the object is cold
15. 15.True or false: a battery cell is not needed for the shadow clock. (a) False (b) True
16. 16.⚖️ 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
17. 17.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a balloon (c) a clock to check (d) chalk to mark shadows
18. 18.🔍 Which is the odd one out? (a) a steel plate (b) a wooden board (c) clean water (d) your hand
19. 19.🧺 Do we need chalk to mark shadows for the shadow clock? (a) not needed (b) needed
20. 20.🛟 What should you wear for a long time in the hot sun? (a) nothing on your head (b) a woollen sweater (c) a raincoat (d) a cap or hat
21. 21.🔦 Which of these is translucent? (a) a book (b) air (c) butter paper (d) clear glass
22. 22.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) a sunny open place (c) yeast (d) a clock to check
23. 23.🔍 Which is the odd one out? (a) a brick (b) butter paper (c) tissue paper (d) oily paper
24. 24.⚖️ 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
25. 25.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) up (b) north (c) west (d) east
26. 26.🔦 Is frosted glass opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
27. 27.🔦 Is a brick opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
28. 28.⚖️ 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
29. 29.⚖️ 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
30. 30.🧺 Do we need turmeric powder for the shadow clock? (a) needed (b) not needed
31. 31.True or false: a mirror is not needed for the shadow clock. (a) False (b) True
32. 32.🧺 Do we need yeast for the shadow clock? (a) needed (b) not needed
33. 33.🔍 Which is the odd one out? (a) a brick (b) a steel plate (c) tissue paper (d) your hand
34. 34.True or false: tissue paper is transparent. (a) False (b) True
35. 35.🧺 Which of these is needed for the shadow clock? (a) a straight stick (b) a mirror (c) a balloon (d) yeast
36. 36.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) a clock to check (c) a mirror (d) a sunny open place
37. 37.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a battery cell (b) a clock to check (c) a straight stick (d) chalk to mark shadows
38. 38.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) a clock to check (c) a straight stick (d) a battery cell
39. 39.True or false: a sunny open place is not needed for the shadow clock. (a) False (b) True
40. 40.⚖️ 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

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