Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 609 · 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.🔦 Which of these is opaque? (a) clear glass (b) butter paper (c) a brick (d) air
2. 2.🛟 While watching shadows outdoors, what must you never do? (a) wear a cap (b) mark with chalk (c) sit in the shade (d) look straight at the Sun
3. 3.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “shadow length”? (a) we measure it (b) we keep it the same (c) we change it
4. 4.🛟 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
5. 5.⚖️ 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
6. 6.🧺 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 battery cell (d) a clock to check
7. 7.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) smaller (b) brighter (c) coloured (d) bigger
8. 8.🔦 Is a wooden board opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
9. 9.True or false: a battery cell is needed for the shadow clock. (a) True (b) False
10. 10.🧺 Do we need yeast for the shadow clock? (a) needed (b) not needed
11. 11.🔦 Which of these is opaque? (a) air (b) clear plastic film (c) a steel plate (d) clean water
12. 12.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) a balloon (c) a clock to check (d) a straight stick
13. 13.🌍 Why does the stick’s shadow move during the day? (a) the ground slides (b) the stick walks (c) the stick grows (d) Earth keeps spinning
14. 14.🧺 Which of these is needed for the shadow clock? (a) a sunny open place (b) yeast (c) a mirror (d) a magnet
15. 15.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a magnet (b) a sunny open place (c) a clock to check (d) a straight stick
16. 16.🕰️ What is a sundial used for? (a) measuring rain (b) making rainbows (c) telling the time (d) weighing things
17. 17.True or false: clear plastic film is transparent. (a) False (b) True
18. 18.True or false: oily paper is translucent. (a) True (b) False
19. 19.🧺 Which of these is needed for the shadow clock? (a) a straight stick (b) a magnet (c) turmeric powder (d) a battery cell
20. 20.True or false: a mirror is not needed for the shadow clock. (a) False (b) True
21. 21.🔦 Which of these is opaque? (a) clear plastic film (b) a wooden board (c) oily paper (d) frosted glass
22. 22.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the time of day”? (a) we change it (b) we keep it the same (c) we measure it
23. 23.True or false: a steel plate is translucent. (a) False (b) True
24. 24.🔦 Is tissue paper opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
25. 25.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) long (b) short (c) missing (d) round
26. 26.🧺 Do we need a battery cell for the shadow clock? (a) not needed (b) needed
27. 27.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) a battery cell (c) a sunny open place (d) a clock to check
28. 28.🌞 When is a stick’s shadow the shortest? (a) at night (b) late evening (c) around noon (d) early morning
29. 29.True or false: a sunny open place is not needed for the shadow clock. (a) True (b) False
30. 30.⚖️ 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
31. 31.🧺 Do we need a mirror for the shadow clock? (a) not needed (b) needed
32. 32.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) west (b) north (c) up (d) east
33. 33.⚖️ 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 stick kept upright
34. 34.⚖️ 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 same stick (c) the time of day (d) shadow length
35. 35.True or false: air is opaque. (a) True (b) False
36. 36.⚖️ 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) False (b) True
37. 37.True or false: air is transparent. (a) False (b) True
38. 38.⚖️ 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
39. 39.⚖️ 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 same stick (d) the stick kept upright
40. 40.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the stick kept upright”? (a) we change it (b) we keep it the same (c) we measure it

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