Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 246 · 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.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) long (b) round (c) short (d) missing
2. 2.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) brighter (b) smaller (c) coloured (d) bigger
3. 3.🔍 Which is the odd one out? (a) air (b) clean water (c) clear plastic film (d) butter paper
4. 4.📘 Why does a shadow form? (a) the object is cold (b) light bends round it (c) an object blocks light (d) the ground is dark
5. 5.🧺 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 magnet (d) a clock to check
6. 6.🔍 Which is the odd one out? (a) your hand (b) a wooden board (c) a book (d) clear glass
7. 7.🛟 What should you wear for a long time in the hot sun? (a) a woollen sweater (b) nothing on your head (c) a cap or hat (d) a raincoat
8. 8.🛟 While watching shadows outdoors, what must you never do? (a) sit in the shade (b) look straight at the Sun (c) mark with chalk (d) wear a cap
9. 9.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the stick kept upright is kept the same. (a) False (b) True
10. 10.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) chalk to mark shadows (c) a balloon (d) a clock to check
11. 11.True or false: chalk to mark shadows is needed for the shadow clock. (a) True (b) False
12. 12.🔦 Is clear glass opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
13. 13.🔍 Which is the odd one out? (a) clean water (b) a brick (c) clear plastic film (d) clear glass
14. 14.🔦 Which of these is transparent? (a) a book (b) frosted glass (c) a wooden board (d) clear glass
15. 15.⚖️ 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
16. 16.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) west (b) north (c) east (d) up
17. 17.True or false: a steel plate is translucent. (a) False (b) True
18. 18.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the time of day is the one thing we change. (a) False (b) True
19. 19.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same spot”? (a) we keep it the same (b) we change it (c) we measure it
20. 20.🧺 Which of these is not needed for the shadow clock? (a) a mirror (b) a sunny open place (c) a straight stick (d) a clock to check
21. 21.🔍 Which is the odd one out? (a) clear glass (b) clean water (c) frosted glass (d) clear plastic film
22. 22.🔦 Which of these is translucent? (a) a wooden board (b) a book (c) a brick (d) oily paper
23. 23.True or false: a balloon is not needed for the shadow clock. (a) False (b) True
24. 24.True or false: a clock to check is needed for the shadow clock. (a) True (b) False
25. 25.🧺 Which of these is not needed for the shadow clock? (a) a clock to check (b) a straight stick (c) yeast (d) a sunny open place
26. 26.🔮 Predict: on a fully cloudy day, the sundial ___. (a) runs faster (b) works better (c) does not work well (d) shows two times
27. 27.⚖️ 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 stick kept upright (d) the time of day
28. 28.⚖️ 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) False (b) True
29. 29.🧺 Do we need a balloon for the shadow clock? (a) needed (b) not needed
30. 30.True or false: a battery cell is not needed for the shadow clock. (a) False (b) True
31. 31.⚖️ 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
32. 32.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) a mirror (c) a clock to check (d) a straight stick
33. 33.🔍 Which is the odd one out? (a) butter paper (b) frosted glass (c) air (d) tissue paper
34. 34.⚖️ 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
35. 35.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) yeast (c) chalk to mark shadows (d) a straight stick
36. 36.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) a clock to check (c) a balloon (d) a straight stick
37. 37.🧺 Which of these is needed for the shadow clock? (a) a magnet (b) turmeric powder (c) a clock to check (d) a mirror
38. 38.⚖️ 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 keep it the same (c) we change it
39. 39.🧺 Which of these is needed for the shadow clock? (a) a mirror (b) a battery cell (c) yeast (d) a straight stick
40. 40.True or false: yeast is not needed for the shadow clock. (a) False (b) True

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