Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 298 · 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? What do we do with “shadow length”? (a) we keep it the same (b) we change it (c) we measure it
2. 2.🧺 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 balloon
3. 3.🧺 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) yeast
4. 4.⚖️ 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 same spot
5. 5.⚖️ 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 keep it the same (c) we measure it
6. 6.⚖️ 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
7. 7.True or false: a clock to check is needed for the shadow clock. (a) False (b) True
8. 8.🧺 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 clock to check
9. 9.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is kept the same. (a) False (b) True
10. 10.True or false: a magnet is needed for the shadow clock. (a) True (b) False
11. 11.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the time of day”? (a) we measure it (b) we change it (c) we keep it the same
12. 12.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) missing (b) round (c) long (d) short
13. 13.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) chalk to mark shadows (c) turmeric powder (d) a straight stick
14. 14.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a mirror (c) chalk to mark shadows (d) a clock to check
15. 15.True or false: a balloon is not needed for the shadow clock. (a) True (b) False
16. 16.🛟 While watching shadows outdoors, what must you never do? (a) sit in the shade (b) wear a cap (c) look straight at the Sun (d) mark with chalk
17. 17.🧺 Which of these is needed for the shadow clock? (a) chalk to mark shadows (b) turmeric powder (c) a battery cell (d) a mirror
18. 18.🧺 Which of these is needed for the shadow clock? (a) a balloon (b) turmeric powder (c) a clock to check (d) a battery cell
19. 19.🛟 What should you wear for a long time in the hot sun? (a) nothing on your head (b) a woollen sweater (c) a cap or hat (d) a raincoat
20. 20.🔦 Which of these is translucent? (a) a steel plate (b) your hand (c) tissue paper (d) clear plastic film
21. 21.🧺 Do we need chalk to mark shadows for the shadow clock? (a) not needed (b) needed
22. 22.True or false: butter paper is transparent. (a) True (b) False
23. 23.🔦 Which of these is transparent? (a) oily paper (b) a book (c) tissue paper (d) clean water
24. 24.⚖️ 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
25. 25.🧺 Do we need turmeric powder for the shadow clock? (a) not needed (b) needed
26. 26.🔦 Is frosted glass opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
27. 27.🔦 Which of these is transparent? (a) your hand (b) butter paper (c) tissue paper (d) air
28. 28.🧺 Do we need a mirror for the shadow clock? (a) not needed (b) needed
29. 29.🔦 Is tissue paper opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
30. 30.🔍 Which is the odd one out? (a) clean water (b) clear plastic film (c) a steel plate (d) clear glass
31. 31.True or false: air is transparent. (a) True (b) False
32. 32.🔦 Is air opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
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 same stick
34. 34.True or false: yeast is not needed for the shadow clock. (a) True (b) False
35. 35.⚖️ 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
36. 36.True or false: a straight stick is needed for the shadow clock. (a) False (b) True
37. 37.🕰️ What is a sundial used for? (a) measuring rain (b) making rainbows (c) telling the time (d) weighing things
38. 38.📘 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
39. 39.🧺 Which of these is needed for the shadow clock? (a) a magnet (b) a balloon (c) a straight stick (d) a mirror
40. 40.True or false: oily paper is opaque. (a) True (b) False

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