Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 44 · 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.🧺 Do we need a magnet for the shadow clock? (a) needed (b) not needed
2. 2.🌞 When is a stick’s shadow the shortest? (a) late evening (b) at night (c) early morning (d) around noon
3. 3.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) long (b) round (c) short (d) missing
4. 4.⚖️ 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
5. 5.🧺 Which of these is needed for the shadow clock? (a) a balloon (b) turmeric powder (c) a straight stick (d) a battery cell
6. 6.True or false: a steel plate is transparent. (a) False (b) True
7. 7.⚖️ 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
8. 8.True or false: oily paper is translucent. (a) True (b) False
9. 9.⚖️ 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 spot (c) the time of day (d) the same stick
10. 10.🔍 Which is the odd one out? (a) tissue paper (b) butter paper (c) frosted glass (d) clean water
11. 11.🧺 Do we need a straight stick for the shadow clock? (a) needed (b) not needed
12. 12.True or false: turmeric powder is needed for the shadow clock. (a) True (b) False
13. 13.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the stick kept upright”? (a) we keep it the same (b) we measure it (c) we change it
14. 14.🧺 Do we need a mirror for the shadow clock? (a) needed (b) not needed
15. 15.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) chalk to mark shadows (c) turmeric powder (d) a sunny open place
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 keep it the same (c) we change it
17. 17.True or false: a sunny open place is not needed for the shadow clock. (a) True (b) False
18. 18.True or false: a sunny open place is needed for the shadow clock. (a) False (b) True
19. 19.🧺 Do we need yeast for the shadow clock? (a) not needed (b) needed
20. 20.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the stick kept upright is what we measure. (a) False (b) True
21. 21.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) the stick kept upright (b) the time of day (c) the same stick (d) shadow length
22. 22.🛟 What should you wear for a long time in the hot sun? (a) a cap or hat (b) a raincoat (c) a woollen sweater (d) nothing on your head
23. 23.⚖️ 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) True (b) False
24. 24.🕰️ What is a sundial used for? (a) weighing things (b) making rainbows (c) measuring rain (d) telling the time
25. 25.🔦 Is frosted glass opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
26. 26.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) brighter (b) coloured (c) smaller (d) bigger
27. 27.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) north (b) east (c) west (d) up
28. 28.🔦 Is your hand opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
29. 29.🧺 Do we need chalk to mark shadows for the shadow clock? (a) needed (b) not needed
30. 30.True or false: yeast is not needed for the shadow clock. (a) False (b) True
31. 31.True or false: a battery cell is needed for the shadow clock. (a) False (b) True
32. 32.🔍 Which is the odd one out? (a) clear plastic film (b) air (c) a steel plate (d) clean water
33. 33.🔦 Which of these is transparent? (a) clean water (b) butter paper (c) a wooden board (d) a steel plate
34. 34.🧺 Which of these is needed for the shadow clock? (a) a sunny open place (b) a battery cell (c) a mirror (d) turmeric powder
35. 35.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) yeast (b) a straight stick (c) chalk to mark shadows (d) a clock to check
36. 36.🔦 Is a steel plate opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
37. 37.🔮 Predict: on a fully cloudy day, the sundial ___. (a) shows two times (b) works better (c) runs faster (d) does not work well
38. 38.🧺 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 mirror (d) a clock to check
39. 39.🔦 Is butter paper opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
40. 40.🧺 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 balloon

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