Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 171 · 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 of these is not needed for the shadow clock? (a) a clock to check (b) a magnet (c) a straight stick (d) a sunny open place
2. 2.True or false: chalk to mark shadows is needed for the shadow clock. (a) False (b) True
3. 3.🛟 What should you wear for a long time in the hot sun? (a) a woollen sweater (b) a raincoat (c) nothing on your head (d) a cap or hat
4. 4.🔦 Is a book opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
5. 5.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is kept the same. (a) False (b) True
6. 6.🧺 Do we need turmeric powder for the shadow clock? (a) needed (b) not needed
7. 7.🔍 Which is the odd one out? (a) clear plastic film (b) a steel plate (c) clear glass (d) clean water
8. 8.🔍 Which is the odd one out? (a) a steel plate (b) a wooden board (c) clean water (d) your hand
9. 9.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is kept the same? (a) shadow length (b) the same stick (c) the time of day
10. 10.🔦 Is frosted glass opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
11. 11.🧺 Do we need a battery cell for the shadow clock? (a) not needed (b) needed
12. 12.🔍 Which is the odd one out? (a) clean water (b) a brick (c) clear plastic film (d) air
13. 13.🔮 Predict: on a fully cloudy day, the sundial ___. (a) runs faster (b) does not work well (c) works better (d) shows two times
14. 14.🔦 Is a wooden board opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
15. 15.🔦 Is your hand opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
16. 16.⚖️ 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) the time of day (c) shadow length
17. 17.True or false: clean water is transparent. (a) True (b) False
18. 18.🔍 Which is the odd one out? (a) air (b) clean water (c) clear plastic film (d) frosted glass
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 measure it (c) we change it
20. 20.🛟 While watching shadows outdoors, what must you never do? (a) mark with chalk (b) sit in the shade (c) look straight at the Sun (d) wear a cap
21. 21.🔦 Which of these is translucent? (a) frosted glass (b) clear glass (c) a wooden board (d) your hand
22. 22.🔦 Which of these is opaque? (a) oily paper (b) clean water (c) a steel plate (d) butter paper
23. 23.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is what we measure. (a) True (b) False
24. 24.🕰️ What is a sundial used for? (a) making rainbows (b) telling the time (c) measuring rain (d) weighing things
25. 25.🔍 Which is the odd one out? (a) a wooden board (b) oily paper (c) a book (d) a steel plate
26. 26.True or false: a balloon is not needed for the shadow clock. (a) False (b) True
27. 27.🔍 Which is the odd one out? (a) tissue paper (b) a book (c) a wooden board (d) a steel plate
28. 28.True or false: yeast is needed for the shadow clock. (a) False (b) True
29. 29.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) round (b) short (c) missing (d) long
30. 30.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same stick”? (a) we keep it the same (b) we measure it (c) we change it
31. 31.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) coloured (b) bigger (c) brighter (d) smaller
32. 32.True or false: a brick is transparent. (a) False (b) True
33. 33.🔦 Is clean water opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
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 same stick (b) shadow length (c) the stick kept upright (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.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) turmeric powder (b) a sunny open place (c) a clock to check (d) a straight stick
37. 37.⚖️ 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
38. 38.🔦 Is a steel plate opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
39. 39.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a battery cell (c) a clock to check (d) chalk to mark shadows
40. 40.🔦 Which of these is transparent? (a) oily paper (b) a steel plate (c) clear glass (d) butter paper

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