Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 821 · 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) a clock to check (c) chalk to mark shadows (d) a balloon
2. 2.⚖️ 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 change it (c) we measure it
3. 3.True or false: a book is transparent. (a) False (b) True
4. 4.True or false: a magnet is not needed for the shadow clock. (a) False (b) True
5. 5.True or false: a mirror is needed for the shadow clock. (a) True (b) False
6. 6.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) round (b) long (c) missing (d) short
7. 7.⚖️ 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
8. 8.🌞 When is a stick’s shadow the shortest? (a) early morning (b) around noon (c) at night (d) late evening
9. 9.🛟 What should you wear for a long time in the hot sun? (a) a raincoat (b) a cap or hat (c) a woollen sweater (d) nothing on your head
10. 10.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) a sunny open place (c) yeast (d) chalk to mark shadows
11. 11.🧺 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 clock to check (d) a mirror
12. 12.🔦 Which of these is transparent? (a) oily paper (b) clear glass (c) a brick (d) frosted glass
13. 13.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) chalk to mark shadows (c) a balloon (d) a straight stick
14. 14.⚖️ 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 stick kept upright (c) the same stick (d) shadow length
15. 15.🔦 Is clear glass opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
16. 16.🔦 Which of these is translucent? (a) a wooden board (b) clean water (c) clear glass (d) tissue paper
17. 17.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) the same spot (b) shadow length (c) the stick kept upright (d) the same stick
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.🧺 Which of these is needed for the shadow clock? (a) a mirror (b) turmeric powder (c) a battery cell (d) a straight stick
20. 20.🛟 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
21. 21.True or false: oily paper is transparent. (a) False (b) True
22. 22.🕰️ What is a sundial used for? (a) making rainbows (b) measuring rain (c) weighing things (d) telling the time
23. 23.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: shadow length is the one thing we change. (a) True (b) False
24. 24.🔮 Predict: on a fully cloudy day, the sundial ___. (a) does not work well (b) works better (c) runs faster (d) shows two times
25. 25.🧺 Which of these is needed for the shadow clock? (a) turmeric powder (b) chalk to mark shadows (c) yeast (d) a magnet
26. 26.⚖️ 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
27. 27.True or false: turmeric powder is not needed for the shadow clock. (a) True (b) False
28. 28.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a battery cell (b) a straight stick (c) a clock to check (d) a sunny open place
29. 29.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is kept the same? (a) the same stick (b) shadow length (c) the time of day
30. 30.True or false: a steel plate is transparent. (a) False (b) True
31. 31.⚖️ 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) True (b) False
32. 32.🔦 Which of these is transparent? (a) a wooden board (b) clean water (c) oily paper (d) your hand
33. 33.🔍 Which is the odd one out? (a) a brick (b) a steel plate (c) tissue paper (d) your hand
34. 34.True or false: a book is translucent. (a) False (b) True
35. 35.True or false: butter paper is translucent. (a) False (b) True
36. 36.🌍 Why does the stick’s shadow move during the day? (a) the stick grows (b) the ground slides (c) the stick walks (d) Earth keeps spinning
37. 37.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) north (b) east (c) up (d) west
38. 38.🔦 Which of these is opaque? (a) frosted glass (b) tissue paper (c) a brick (d) butter paper
39. 39.🔦 Which of these is opaque? (a) a book (b) butter paper (c) clean water (d) oily paper
40. 40.True or false: turmeric powder is needed for the shadow clock. (a) True (b) False

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