Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 976 · 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.🌞 When is a stick’s shadow the shortest? (a) around noon (b) early morning (c) late evening (d) at night
2. 2.🔦 Is frosted glass opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
3. 3.🧺 Do we need a mirror for the shadow clock? (a) needed (b) not needed
4. 4.🛟 What should you wear for a long time in the hot sun? (a) a woollen sweater (b) a cap or hat (c) nothing on your head (d) a raincoat
5. 5.🧺 Do we need a sunny open place for the shadow clock? (a) needed (b) not needed
6. 6.True or false: a mirror is needed for the shadow clock. (a) True (b) False
7. 7.⚖️ 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 stick (c) shadow length
8. 8.True or false: a clock to check is needed for the shadow clock. (a) True (b) False
9. 9.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same spot is kept the same. (a) False (b) True
10. 10.True or false: a steel plate is translucent. (a) False (b) True
11. 11.🔍 Which is the odd one out? (a) clean water (b) clear plastic film (c) air (d) your hand
12. 12.📘 Why does a shadow form? (a) light bends round it (b) an object blocks light (c) the object is cold (d) the ground is dark
13. 13.🔍 Which is the odd one out? (a) a wooden board (b) a brick (c) butter paper (d) a steel plate
14. 14.🧺 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 clock to check (d) a balloon
15. 15.⚖️ 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 spot (c) the same stick (d) the time of day
16. 16.🔦 Which of these is opaque? (a) a book (b) tissue paper (c) butter paper (d) clear plastic film
17. 17.⚖️ 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
18. 18.⚖️ 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
19. 19.🔦 Is clear glass opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
20. 20.True or false: clear plastic film is translucent. (a) True (b) False
21. 21.🔍 Which is the odd one out? (a) clear plastic film (b) clear glass (c) oily paper (d) air
22. 22.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) east (b) west (c) up (d) north
23. 23.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) yeast (c) a clock to check (d) a sunny open place
24. 24.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) a clock to check (c) chalk to mark shadows (d) a battery cell
25. 25.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) a balloon (c) a clock to check (d) a sunny open place
26. 26.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) smaller (b) bigger (c) coloured (d) brighter
27. 27.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is kept the same? (a) the same spot (b) the time of day (c) shadow length
28. 28.🧺 Which of these is needed for the shadow clock? (a) a balloon (b) a sunny open place (c) a magnet (d) a mirror
29. 29.🔦 Is a book opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
30. 30.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) chalk to mark shadows (c) a battery cell (d) a clock to check
31. 31.True or false: yeast is needed for the shadow clock. (a) True (b) False
32. 32.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the stick kept upright”? (a) we keep it the same (b) we change it (c) we measure it
33. 33.🔦 Which of these is opaque? (a) tissue paper (b) oily paper (c) a brick (d) butter paper
34. 34.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) a magnet (c) a clock to check (d) chalk to mark shadows
35. 35.🧺 Do we need a magnet for the shadow clock? (a) needed (b) not needed
36. 36.🛟 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
37. 37.True or false: yeast is not needed for the shadow clock. (a) True (b) False
38. 38.⚖️ 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) the same spot (c) shadow length (d) the stick kept upright
39. 39.🔍 Which is the odd one out? (a) a steel plate (b) a brick (c) frosted glass (d) a wooden board
40. 40.🔦 Is tissue paper opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque

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