Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 602 · 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 translucent? (a) tissue paper (b) air (c) a wooden board (d) a brick
2. 2.⚖️ 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
3. 3.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a magnet (b) chalk to mark shadows (c) a sunny open place (d) a straight stick
4. 4.🧺 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) a balloon (d) a straight stick
5. 5.🛟 What should you wear for a long time in the hot sun? (a) a raincoat (b) nothing on your head (c) a woollen sweater (d) a cap or hat
6. 6.🧺 Which of these is needed for the shadow clock? (a) turmeric powder (b) a clock to check (c) a battery cell (d) a magnet
7. 7.True or false: oily paper is transparent. (a) True (b) False
8. 8.True or false: a battery cell is needed for the shadow clock. (a) False (b) True
9. 9.True or false: yeast is needed for the shadow clock. (a) True (b) False
10. 10.True or false: a steel plate is translucent. (a) False (b) True
11. 11.🧺 Do we need chalk to mark shadows for the shadow clock? (a) needed (b) not needed
12. 12.🔍 Which is the odd one out? (a) clear plastic film (b) your hand (c) air (d) clean water
13. 13.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) shadow length (b) the time of day (c) the same stick (d) the same spot
14. 14.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) brighter (b) coloured (c) smaller (d) bigger
15. 15.🧺 Do we need a battery cell for the shadow clock? (a) needed (b) not needed
16. 16.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) missing (b) short (c) round (d) long
17. 17.🧺 Do we need a mirror for the shadow clock? (a) not needed (b) needed
18. 18.🛟 While watching shadows outdoors, what must you never do? (a) look straight at the Sun (b) mark with chalk (c) wear a cap (d) sit in the shade
19. 19.True or false: a steel plate is transparent. (a) False (b) True
20. 20.🔍 Which is the odd one out? (a) a brick (b) oily paper (c) a steel plate (d) a book
21. 21.📘 Why does a shadow form? (a) the object is cold (b) an object blocks light (c) the ground is dark (d) light bends round it
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 keep it the same (b) we change it (c) we measure it
23. 23.🧺 Do we need a sunny open place for the shadow clock? (a) not needed (b) needed
24. 24.🔦 Is clear glass opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
25. 25.🔍 Which is the odd one out? (a) butter paper (b) a brick (c) tissue paper (d) frosted glass
26. 26.🕰️ What is a sundial used for? (a) making rainbows (b) measuring rain (c) telling the time (d) weighing things
27. 27.🧺 Which of these is needed for the shadow clock? (a) a mirror (b) a balloon (c) a battery cell (d) a straight stick
28. 28.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a sunny open place (c) chalk to mark shadows (d) yeast
29. 29.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) up (b) east (c) north (d) west
30. 30.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is the one thing we change? (a) the stick kept upright (b) the same spot (c) the time of day (d) the same stick
31. 31.⚖️ 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 same spot (c) shadow length
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 sunny open place (d) a mirror
33. 33.⚖️ 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
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 same stick (c) the time of day
35. 35.🔦 Is a steel plate opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
36. 36.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) yeast (c) a straight stick (d) a clock to check
37. 37.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the time of day is what we measure. (a) False (b) True
38. 38.True or false: turmeric powder is not needed for the shadow clock. (a) False (b) True
39. 39.🔦 Which of these is opaque? (a) a book (b) air (c) clear plastic film (d) clean water
40. 40.True or false: tissue paper is transparent. (a) False (b) True

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