Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 697 · 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.⚖️ 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) False (b) True
2. 2.🧺 Do we need a clock to check for the shadow clock? (a) not needed (b) needed
3. 3.🔍 Which is the odd one out? (a) clear glass (b) a brick (c) air (d) clear plastic film
4. 4.⚖️ 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 change it (c) we keep it the same
5. 5.🔦 Is clear glass opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
6. 6.🌍 Why does the stick’s shadow move during the day? (a) the stick walks (b) the stick grows (c) Earth keeps spinning (d) the ground slides
7. 7.🛟 While watching shadows outdoors, what must you never do? (a) mark with chalk (b) sit in the shade (c) wear a cap (d) look straight at the Sun
8. 8.🛟 What should you wear for a long time in the hot sun? (a) nothing on your head (b) a cap or hat (c) a raincoat (d) a woollen sweater
9. 9.🔦 Which of these is opaque? (a) clear glass (b) clean water (c) oily paper (d) a brick
10. 10.True or false: a wooden board is transparent. (a) True (b) False
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 kept the same? (a) the time of day (b) shadow length (c) the same spot
13. 13.🧺 Which of these is not needed for the shadow clock? (a) a clock to check (b) a straight stick (c) a mirror (d) chalk to mark shadows
14. 14.🧺 Do we need a battery cell for the shadow clock? (a) needed (b) not needed
15. 15.🔍 Which is the odd one out? (a) clear plastic film (b) frosted glass (c) tissue paper (d) oily paper
16. 16.🕰️ What is a sundial used for? (a) telling the time (b) measuring rain (c) making rainbows (d) weighing things
17. 17.🧺 Do we need a magnet for the shadow clock? (a) not needed (b) needed
18. 18.⚖️ 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) shadow length (c) the stick kept upright
19. 19.🔮 Predict: on a fully cloudy day, the sundial ___. (a) works better (b) does not work well (c) runs faster (d) shows two times
20. 20.True or false: a battery cell is needed for the shadow clock. (a) False (b) True
21. 21.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a balloon (c) a clock to check (d) chalk to mark shadows
22. 22.⚖️ 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
23. 23.🧺 Which of these is needed for the shadow clock? (a) a mirror (b) turmeric powder (c) a magnet (d) chalk to mark shadows
24. 24.True or false: tissue paper is translucent. (a) True (b) False
25. 25.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is the one thing we change? (a) the time of day (b) the same spot (c) shadow length (d) the same stick
26. 26.🔦 Is your hand opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
27. 27.True or false: a brick is translucent. (a) True (b) False
28. 28.🔦 Which of these is translucent? (a) butter paper (b) a steel plate (c) a book (d) air
29. 29.🧺 Do we need a mirror for the shadow clock? (a) not needed (b) needed
30. 30.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) a sunny open place (c) yeast (d) a straight stick
31. 31.🧺 Which of these is needed for the shadow clock? (a) a mirror (b) a straight stick (c) a battery cell (d) a magnet
32. 32.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) round (b) long (c) missing (d) short
33. 33.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the stick kept upright”? (a) we measure it (b) we change it (c) we keep it the same
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.🔍 Which is the odd one out? (a) tissue paper (b) air (c) clean water (d) clear plastic film
36. 36.🧺 Which of these is not needed for the shadow clock? (a) a magnet (b) a straight stick (c) chalk to mark shadows (d) a sunny open place
37. 37.⚖️ 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
38. 38.True or false: your hand is opaque. (a) True (b) False
39. 39.🔦 Which of these is translucent? (a) air (b) clear glass (c) oily paper (d) a steel plate
40. 40.⚖️ 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

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