Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 933 · 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 same spot is the one thing we change. (a) True (b) False
2. 2.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) chalk to mark shadows (c) a straight stick (d) a mirror
3. 3.🧺 Do we need a sunny open place for the shadow clock? (a) not needed (b) needed
4. 4.🕰️ What is a sundial used for? (a) telling the time (b) making rainbows (c) weighing things (d) measuring rain
5. 5.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same spot”? (a) we keep it the same (b) we change it (c) we measure it
6. 6.True or false: tissue paper is translucent. (a) True (b) False
7. 7.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) long (b) round (c) missing (d) short
8. 8.True or false: clean water is transparent. (a) True (b) False
9. 9.⚖️ 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 stick
10. 10.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) up (b) west (c) north (d) east
11. 11.True or false: a mirror is needed for the shadow clock. (a) False (b) True
12. 12.🧺 Do we need a clock to check for the shadow clock? (a) needed (b) not needed
13. 13.True or false: a straight stick is needed for the shadow clock. (a) False (b) True
14. 14.🧺 Do we need a battery cell for the shadow clock? (a) needed (b) not needed
15. 15.⚖️ 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 same spot (c) the time of day
16. 16.🔮 Predict: on a fully cloudy day, the sundial ___. (a) runs faster (b) works better (c) shows two times (d) does not work well
17. 17.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same spot is what we measure. (a) True (b) False
18. 18.🧺 Which of these is needed for the shadow clock? (a) chalk to mark shadows (b) a mirror (c) yeast (d) a battery cell
19. 19.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same stick”? (a) we change it (b) we measure it (c) we keep it the same
20. 20.⚖️ 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 time of day (c) the same spot (d) the same stick
21. 21.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) a straight stick (c) a sunny open place (d) a battery cell
22. 22.🔍 Which is the odd one out? (a) clean water (b) air (c) clear glass (d) your hand
23. 23.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) yeast (c) a straight stick (d) chalk to mark shadows
24. 24.🔦 Is oily paper opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
25. 25.🧺 Do we need a magnet for the shadow clock? (a) not needed (b) needed
26. 26.🛟 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
27. 27.🔦 Which of these is opaque? (a) a brick (b) tissue paper (c) frosted glass (d) butter paper
28. 28.⚖️ 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
29. 29.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “shadow length”? (a) we change it (b) we measure it (c) we keep it the same
30. 30.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) turmeric powder (c) a sunny open place (d) a clock to check
31. 31.📘 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
32. 32.🔦 Is clear glass opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
33. 33.🛟 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
34. 34.⚖️ 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
35. 35.🧺 Do we need yeast for the shadow clock? (a) not needed (b) needed
36. 36.🔍 Which is the odd one out? (a) clear plastic film (b) clean water (c) air (d) tissue paper
37. 37.🔦 Which of these is translucent? (a) oily paper (b) a book (c) a wooden board (d) air
38. 38.🧺 Which of these is needed for the shadow clock? (a) a magnet (b) a clock to check (c) a mirror (d) a balloon
39. 39.🔦 Is butter paper opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
40. 40.🧺 Do we need chalk to mark shadows for the shadow clock? (a) needed (b) not needed

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