Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 572 · 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.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a sunny open place (c) a battery cell (d) a clock to check
2. 2.🔦 Is a wooden board opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
3. 3.🧺 Do we need turmeric powder for the shadow clock? (a) not needed (b) needed
4. 4.🔦 Which of these is transparent? (a) your hand (b) clear glass (c) butter paper (d) frosted glass
5. 5.⚖️ 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 keep it the same (c) we change it
6. 6.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) long (b) round (c) short (d) missing
7. 7.⚖️ 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
8. 8.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same spot is what we measure. (a) True (b) False
9. 9.🔮 Predict: on a fully cloudy day, the sundial ___. (a) shows two times (b) works better (c) runs faster (d) does not work well
10. 10.🧺 Do we need a sunny open place for the shadow clock? (a) not needed (b) needed
11. 11.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) a sunny open place (c) a balloon (d) a clock to check
12. 12.🧺 Which of these is needed for the shadow clock? (a) a balloon (b) a magnet (c) a mirror (d) a straight stick
13. 13.🔦 Is clean water opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
14. 14.🔦 Which of these is opaque? (a) air (b) a steel plate (c) frosted glass (d) clean water
15. 15.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) shadow length (b) the stick kept upright (c) the same spot (d) the time of day
16. 16.⚖️ 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
17. 17.🛟 What should you wear for a long time in the hot sun? (a) a cap or hat (b) a woollen sweater (c) nothing on your head (d) a raincoat
18. 18.🔦 Which of these is translucent? (a) frosted glass (b) clean water (c) a brick (d) a steel plate
19. 19.True or false: oily paper is opaque. (a) True (b) False
20. 20.🌍 Why does the stick’s shadow move during the day? (a) the stick walks (b) the stick grows (c) Earth keeps spinning (d) the ground slides
21. 21.🔍 Which is the odd one out? (a) your hand (b) clear glass (c) a brick (d) a steel plate
22. 22.⚖️ 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
23. 23.🧺 Do we need a straight stick for the shadow clock? (a) not needed (b) needed
24. 24.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “shadow length”? (a) we keep it the same (b) we measure it (c) we change it
25. 25.⚖️ 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
26. 26.🧺 Do we need yeast for the shadow clock? (a) needed (b) not needed
27. 27.⚖️ 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) False (b) True
28. 28.True or false: clean water is transparent. (a) False (b) True
29. 29.🛟 While watching shadows outdoors, what must you never do? (a) sit in the shade (b) wear a cap (c) mark with chalk (d) look straight at the Sun
30. 30.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) smaller (b) brighter (c) coloured (d) bigger
31. 31.🔍 Which is the odd one out? (a) butter paper (b) air (c) tissue paper (d) oily paper
32. 32.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) west (b) east (c) north (d) up
33. 33.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) a magnet (c) a sunny open place (d) a clock to check
34. 34.True or false: a book is opaque. (a) False (b) True
35. 35.🧺 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) a battery cell
36. 36.🔦 Which of these is transparent? (a) a book (b) oily paper (c) a wooden board (d) clean water
37. 37.🔦 Is clear plastic film opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
38. 38.🔦 Which of these is opaque? (a) butter paper (b) clean water (c) your hand (d) air
39. 39.🔍 Which is the odd one out? (a) a brick (b) a steel plate (c) a wooden board (d) oily paper
40. 40.🔦 Which of these is transparent? (a) a wooden board (b) a book (c) a brick (d) air

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