Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 76 · 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) chalk to mark shadows (c) a mirror (d) a clock to check
2. 2.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) west (b) east (c) north (d) up
3. 3.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the time of day is kept the same. (a) True (b) False
4. 4.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “shadow length”? (a) we change it (b) we measure it (c) we keep it the same
5. 5.⚖️ 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 keep it the same (c) we change it
6. 6.🕰️ What is a sundial used for? (a) weighing things (b) telling the time (c) making rainbows (d) measuring rain
7. 7.⚖️ 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) shadow length (c) the same spot (d) the time of day
8. 8.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) yeast (c) a sunny open place (d) a straight stick
9. 9.⚖️ 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
10. 10.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a magnet (b) a clock to check (c) a sunny open place (d) chalk to mark shadows
11. 11.🔍 Which is the odd one out? (a) frosted glass (b) tissue paper (c) butter paper (d) air
12. 12.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a balloon (b) a sunny open place (c) a clock to check (d) chalk to mark shadows
13. 13.True or false: yeast is not needed for the shadow clock. (a) True (b) False
14. 14.🧺 Which of these is needed for the shadow clock? (a) yeast (b) a battery cell (c) a magnet (d) a straight stick
15. 15.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a sunny open place (c) a battery cell (d) a straight stick
16. 16.🧺 Do we need chalk to mark shadows for the shadow clock? (a) needed (b) not needed
17. 17.🔦 Is a steel plate opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
18. 18.🛟 While watching shadows outdoors, what must you never do? (a) wear a cap (b) mark with chalk (c) look straight at the Sun (d) sit in the shade
19. 19.⚖️ 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
20. 20.🔍 Which is the odd one out? (a) a wooden board (b) clear plastic film (c) a book (d) a brick
21. 21.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) short (b) long (c) round (d) missing
22. 22.🧺 Which of these is not needed for the shadow clock? (a) a clock to check (b) a straight stick (c) chalk to mark shadows (d) a magnet
23. 23.🔍 Which is the odd one out? (a) a wooden board (b) clear glass (c) a steel plate (d) a brick
24. 24.True or false: chalk to mark shadows is not needed for the shadow clock. (a) True (b) False
25. 25.🔦 Which of these is translucent? (a) a steel plate (b) air (c) clean water (d) frosted glass
26. 26.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a straight stick (c) yeast (d) a sunny open place
27. 27.📘 Why does a shadow form? (a) the object is cold (b) light bends round it (c) the ground is dark (d) an object blocks light
28. 28.🧺 Which of these is needed for the shadow clock? (a) a magnet (b) a mirror (c) a battery cell (d) a sunny open place
29. 29.🔍 Which is the odd one out? (a) a wooden board (b) butter paper (c) a brick (d) a book
30. 30.True or false: a sunny open place is not needed for the shadow clock. (a) False (b) True
31. 31.🧺 Do we need a straight stick for the shadow clock? (a) needed (b) not needed
32. 32.🔮 Predict: on a fully cloudy day, the sundial ___. (a) runs faster (b) does not work well (c) works better (d) shows two times
33. 33.🛟 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
34. 34.⚖️ 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 same stick (c) shadow length
35. 35.True or false: a magnet is needed for the shadow clock. (a) False (b) True
36. 36.True or false: a straight stick is not needed for the shadow clock. (a) False (b) True
37. 37.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same spot is kept the same. (a) False (b) True
38. 38.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the stick kept upright is kept the same. (a) False (b) True
39. 39.🧺 Do we need a sunny open place for the shadow clock? (a) not needed (b) needed
40. 40.🧺 Which of these is needed for the shadow clock? (a) a clock to check (b) a mirror (c) yeast (d) a battery cell

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