Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 994 · 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.🧺 Do we need a straight stick for the shadow clock? (a) not needed (b) needed
2. 2.🌍 Why does the stick’s shadow move during the day? (a) the ground slides (b) the stick walks (c) Earth keeps spinning (d) the stick grows
3. 3.🔦 Which of these is translucent? (a) a wooden board (b) a book (c) clear glass (d) frosted glass
4. 4.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is what we measure. (a) True (b) False
5. 5.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) west (b) up (c) east (d) north
6. 6.🔦 Is a brick opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
7. 7.🔮 Predict: on a fully cloudy day, the sundial ___. (a) works better (b) shows two times (c) runs faster (d) does not work well
8. 8.🌞 When is a stick’s shadow the shortest? (a) around noon (b) at night (c) early morning (d) late evening
9. 9.🧺 Which of these is needed for the shadow clock? (a) chalk to mark shadows (b) a balloon (c) a mirror (d) yeast
10. 10.True or false: clear plastic film is transparent. (a) True (b) False
11. 11.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) round (b) long (c) missing (d) short
12. 12.⚖️ 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
13. 13.⚖️ 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 stick kept upright (c) shadow length
14. 14.🔦 Which of these is translucent? (a) butter paper (b) your hand (c) a book (d) air
15. 15.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) a clock to check (c) a mirror (d) chalk to mark shadows
16. 16.⚖️ 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 stick kept upright (d) the time of day
17. 17.📘 Why does a shadow form? (a) the ground is dark (b) light bends round it (c) the object is cold (d) an object blocks light
18. 18.🔍 Which is the odd one out? (a) clear plastic film (b) your hand (c) a wooden board (d) a brick
19. 19.True or false: a sunny open place is needed for the shadow clock. (a) True (b) False
20. 20.🔍 Which is the odd one out? (a) a steel plate (b) your hand (c) air (d) a brick
21. 21.🧺 Do we need a battery cell for the shadow clock? (a) needed (b) not needed
22. 22.🧺 Do we need a sunny open place for the shadow clock? (a) needed (b) not needed
23. 23.🧺 Which of these is needed for the shadow clock? (a) a balloon (b) a battery cell (c) yeast (d) a clock to check
24. 24.🛟 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
25. 25.🛟 What should you wear for a long time in the hot sun? (a) a woollen sweater (b) nothing on your head (c) a cap or hat (d) a raincoat
26. 26.🧺 Do we need a clock to check for the shadow clock? (a) needed (b) not needed
27. 27.🔦 Is a book opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
28. 28.🧺 Which of these is needed for the shadow clock? (a) a straight stick (b) yeast (c) turmeric powder (d) a mirror
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) shadow length (b) the same stick (c) the time of day (d) the same spot
30. 30.🔦 Is air opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
31. 31.True or false: clear glass is transparent. (a) False (b) True
32. 32.🧺 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 balloon (d) a sunny open place
33. 33.🧺 Which of these is needed for the shadow clock? (a) a sunny open place (b) yeast (c) a mirror (d) turmeric powder
34. 34.⚖️ 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
35. 35.True or false: a straight stick is not needed for the shadow clock. (a) True (b) False
36. 36.🧺 Which of these is not needed for the shadow clock? (a) a clock to check (b) yeast (c) a straight stick (d) a sunny open place
37. 37.True or false: clear glass is opaque. (a) True (b) False
38. 38.🔦 Is a wooden board opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
39. 39.🕰️ What is a sundial used for? (a) measuring rain (b) making rainbows (c) telling the time (d) weighing things
40. 40.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) chalk to mark shadows (c) turmeric powder (d) a sunny open place

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