Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 687 · 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.🛟 What should you wear for a long time in the hot sun? (a) a cap or hat (b) a raincoat (c) nothing on your head (d) a woollen sweater
2. 2.⚖️ 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 change it (c) we keep it the same
3. 3.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) missing (b) short (c) long (d) round
4. 4.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) up (b) north (c) east (d) west
5. 5.🧺 Do we need a mirror for the shadow clock? (a) not needed (b) needed
6. 6.True or false: a straight stick is not needed for the shadow clock. (a) False (b) True
7. 7.True or false: turmeric powder is needed for the shadow clock. (a) True (b) False
8. 8.🧺 Do we need a magnet for the shadow clock? (a) not needed (b) needed
9. 9.🧺 Do we need a straight stick for the shadow clock? (a) not needed (b) needed
10. 10.🔮 Predict: on a fully cloudy day, the sundial ___. (a) does not work well (b) shows two times (c) runs faster (d) works better
11. 11.True or false: a wooden board is opaque. (a) False (b) True
12. 12.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) a straight stick (c) turmeric powder (d) a clock to check
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 change it (b) we keep it the same (c) we measure it
14. 14.🛟 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
15. 15.⚖️ 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
16. 16.⚖️ 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
17. 17.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is the one thing we change. (a) False (b) True
18. 18.🧺 Which of these is needed for the shadow clock? (a) a battery cell (b) a balloon (c) a straight stick (d) a mirror
19. 19.🧺 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) chalk to mark shadows
20. 20.🔦 Which of these is transparent? (a) oily paper (b) your hand (c) clear plastic film (d) butter paper
21. 21.🧺 Which of these is not needed for the shadow clock? (a) a clock to check (b) a sunny open place (c) a straight stick (d) a magnet
22. 22.🧺 Which of these is needed for the shadow clock? (a) turmeric powder (b) a sunny open place (c) a balloon (d) yeast
23. 23.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “shadow length”? (a) we measure it (b) we change it (c) we keep it the same
24. 24.🌞 When is a stick’s shadow the shortest? (a) early morning (b) late evening (c) at night (d) around noon
25. 25.🔍 Which is the odd one out? (a) air (b) a brick (c) a steel plate (d) a wooden board
26. 26.📘 Why does a shadow form? (a) the ground is dark (b) light bends round it (c) an object blocks light (d) the object is cold
27. 27.🧺 Do we need turmeric powder for the shadow clock? (a) not needed (b) needed
28. 28.True or false: a sunny open place is not needed for the shadow clock. (a) False (b) True
29. 29.🔍 Which is the odd one out? (a) a wooden board (b) your hand (c) a steel plate (d) oily paper
30. 30.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a mirror (b) a sunny open place (c) a straight stick (d) a clock to check
31. 31.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) brighter (b) coloured (c) bigger (d) smaller
32. 32.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) a clock to check (c) yeast (d) a sunny open place
33. 33.🌍 Why does the stick’s shadow move during the day? (a) Earth keeps spinning (b) the stick walks (c) the stick grows (d) the ground slides
34. 34.🕰️ What is a sundial used for? (a) making rainbows (b) weighing things (c) measuring rain (d) telling the time
35. 35.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) the same stick (b) the same spot (c) shadow length (d) the stick kept upright
36. 36.🔦 Is tissue paper opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
37. 37.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a magnet (c) a clock to check (d) chalk to mark shadows
38. 38.True or false: a book is opaque. (a) False (b) True
39. 39.True or false: clear glass is transparent. (a) True (b) False
40. 40.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the time of day is what we measure. (a) True (b) False

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