Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 632 · 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 opaque? (a) oily paper (b) a wooden board (c) butter paper (d) clear glass
2. 2.⚖️ 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 change it (c) we measure it
3. 3.🌞 When is a stick’s shadow the shortest? (a) early morning (b) at night (c) around noon (d) late evening
4. 4.🔍 Which is the odd one out? (a) air (b) a wooden board (c) a brick (d) a book
5. 5.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the stick kept upright is the one thing we change. (a) False (b) True
6. 6.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: shadow length is what we measure. (a) True (b) False
7. 7.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a magnet (c) chalk to mark shadows (d) a sunny open place
8. 8.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) bigger (b) brighter (c) coloured (d) smaller
9. 9.🔦 Is clear plastic film opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
10. 10.🔦 Which of these is opaque? (a) butter paper (b) tissue paper (c) frosted glass (d) a steel plate
11. 11.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same spot”? (a) we change it (b) we keep it the same (c) we measure it
12. 12.⚖️ 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
13. 13.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) a sunny open place (c) a mirror (d) a straight stick
14. 14.🧺 Which of these is needed for the shadow clock? (a) a battery cell (b) chalk to mark shadows (c) a balloon (d) turmeric powder
15. 15.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) the time of day (b) shadow length (c) the same spot (d) the same stick
16. 16.🛟 What should you wear for a long time in the hot sun? (a) a raincoat (b) a cap or hat (c) nothing on your head (d) a woollen sweater
17. 17.🔦 Which of these is opaque? (a) butter paper (b) your hand (c) air (d) oily paper
18. 18.⚖️ 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
19. 19.True or false: a clock to check is not needed for the shadow clock. (a) True (b) False
20. 20.🛟 While watching shadows outdoors, what must you never do? (a) wear a cap (b) look straight at the Sun (c) mark with chalk (d) sit in the shade
21. 21.🧺 Which of these is needed for the shadow clock? (a) a battery cell (b) a mirror (c) a balloon (d) a straight stick
22. 22.🧺 Do we need chalk to mark shadows for the shadow clock? (a) not needed (b) needed
23. 23.🔮 Predict: on a fully cloudy day, the sundial ___. (a) runs faster (b) shows two times (c) works better (d) does not work well
24. 24.📘 Why does a shadow form? (a) an object blocks light (b) the object is cold (c) light bends round it (d) the ground is dark
25. 25.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) a clock to check (c) a sunny open place (d) a balloon
26. 26.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the time of day”? (a) we measure it (b) we keep it the same (c) we change it
27. 27.🧺 Do we need a battery cell for the shadow clock? (a) needed (b) not needed
28. 28.🔦 Which of these is opaque? (a) clear plastic film (b) a book (c) tissue paper (d) air
29. 29.True or false: butter paper is translucent. (a) False (b) True
30. 30.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) up (b) east (c) north (d) west
31. 31.True or false: a wooden board is opaque. (a) False (b) True
32. 32.🕰️ What is a sundial used for? (a) measuring rain (b) telling the time (c) weighing things (d) making rainbows
33. 33.🔦 Which of these is translucent? (a) your hand (b) air (c) a steel plate (d) butter paper
34. 34.⚖️ 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 time of day (c) the same stick
35. 35.🧺 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 straight stick
36. 36.🧺 Do we need a clock to check for the shadow clock? (a) not needed (b) needed
37. 37.🧺 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) a balloon (d) a straight stick
38. 38.🧺 Do we need yeast for the shadow clock? (a) needed (b) not needed
39. 39.🔍 Which is the odd one out? (a) your hand (b) a steel plate (c) a book (d) clean water
40. 40.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) a sunny open place (c) chalk to mark shadows (d) turmeric powder

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