Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 28 · 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.True or false: yeast is not needed for the shadow clock. (a) False (b) True
2. 2.True or false: yeast is needed for the shadow clock. (a) False (b) True
3. 3.⚖️ 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) False (b) True
4. 4.⚖️ 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) the same stick (c) shadow length (d) the same spot
5. 5.🧺 Which of these is not needed for the shadow clock? (a) yeast (b) a sunny open place (c) a clock to check (d) a straight stick
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) False (b) True
7. 7.⚖️ 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
8. 8.🛟 What should you wear for a long time in the hot sun? (a) a cap or hat (b) nothing on your head (c) a raincoat (d) a woollen sweater
9. 9.True or false: a sunny open place is needed for the shadow clock. (a) False (b) True
10. 10.🧺 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 magnet (d) chalk to mark shadows
11. 11.⚖️ 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) True (b) False
12. 12.⚖️ 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
13. 13.⚖️ 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) True (b) False
14. 14.True or false: a magnet is not needed for the shadow clock. (a) True (b) False
15. 15.⚖️ 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) True (b) False
16. 16.🧺 Do we need a sunny open place for the shadow clock? (a) needed (b) not needed
17. 17.🔦 Is a steel plate opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
18. 18.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is kept the same. (a) True (b) False
19. 19.🔮 Predict: on a fully cloudy day, the sundial ___. (a) runs faster (b) works better (c) shows two times (d) does not work well
20. 20.True or false: chalk to mark shadows is needed for the shadow clock. (a) False (b) True
21. 21.🧺 Which of these is needed for the shadow clock? (a) a sunny open place (b) a mirror (c) a magnet (d) yeast
22. 22.🧺 Do we need a clock to check for the shadow clock? (a) needed (b) not needed
23. 23.🧺 Do we need turmeric powder for the shadow clock? (a) needed (b) not needed
24. 24.🛟 While watching shadows outdoors, what must you never do? (a) look straight at the Sun (b) sit in the shade (c) mark with chalk (d) wear a cap
25. 25.True or false: frosted glass is translucent. (a) False (b) True
26. 26.True or false: a clock to check is needed for the shadow clock. (a) False (b) True
27. 27.🔦 Which of these is translucent? (a) air (b) frosted glass (c) a steel plate (d) clear plastic film
28. 28.🧺 Which of these is not needed for the shadow clock? (a) a clock to check (b) a battery cell (c) a sunny open place (d) a straight stick
29. 29.⚖️ 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 time of day (c) the same stick (d) shadow length
30. 30.🔍 Which is the odd one out? (a) clear glass (b) clean water (c) oily paper (d) air
31. 31.🔍 Which is the odd one out? (a) a brick (b) your hand (c) a steel plate (d) frosted glass
32. 32.⚖️ 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 measure it (c) we keep it the same
33. 33.🕰️ What is a sundial used for? (a) telling the time (b) weighing things (c) making rainbows (d) measuring rain
34. 34.⚖️ 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
35. 35.🔦 Which of these is transparent? (a) oily paper (b) clear glass (c) tissue paper (d) frosted glass
36. 36.🔍 Which is the odd one out? (a) a brick (b) clear plastic film (c) clear glass (d) clean water
37. 37.🧺 Which of these is needed for the shadow clock? (a) a mirror (b) a clock to check (c) a magnet (d) yeast
38. 38.🔦 Which of these is transparent? (a) a wooden board (b) a steel plate (c) air (d) a brick
39. 39.🧺 Do we need a battery cell for the shadow clock? (a) needed (b) not needed
40. 40.🧺 Which of these is needed for the shadow clock? (a) a straight stick (b) a magnet (c) a balloon (d) turmeric powder

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