Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 201 · 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.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) a clock to check (c) a sunny open place (d) a magnet
2. 2.⚖️ 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
3. 3.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) coloured (b) bigger (c) smaller (d) brighter
4. 4.🔦 Is a wooden board opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
5. 5.🔍 Which is the odd one out? (a) frosted glass (b) tissue paper (c) oily paper (d) a wooden board
6. 6.🔍 Which is the odd one out? (a) clean water (b) a steel plate (c) your hand (d) a brick
7. 7.🧺 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) a straight stick (d) turmeric powder
8. 8.🛟 What should you wear for a long time in the hot sun? (a) a woollen sweater (b) nothing on your head (c) a raincoat (d) a cap or hat
9. 9.🔦 Which of these is opaque? (a) air (b) a brick (c) clear glass (d) clear plastic film
10. 10.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) north (b) east (c) west (d) up
11. 11.True or false: clear glass is translucent. (a) True (b) False
12. 12.🧺 Do we need a sunny open place for the shadow clock? (a) not needed (b) needed
13. 13.True or false: a balloon is not needed for the shadow clock. (a) True (b) False
14. 14.⚖️ 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 time of day (c) shadow length (d) the same stick
15. 15.🔦 Which of these is transparent? (a) butter paper (b) a book (c) your hand (d) air
16. 16.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a sunny open place (c) chalk to mark shadows (d) yeast
17. 17.🌞 When is a stick’s shadow the shortest? (a) early morning (b) around noon (c) at night (d) late evening
18. 18.🔦 Is butter paper opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
19. 19.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a mirror (b) chalk to mark shadows (c) a clock to check (d) a sunny open place
20. 20.⚖️ 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
21. 21.⚖️ 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) True (b) False
22. 22.True or false: air is translucent. (a) True (b) False
23. 23.⚖️ 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) True (b) False
24. 24.⚖️ 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
25. 25.🔍 Which is the odd one out? (a) clear plastic film (b) air (c) tissue paper (d) clear glass
26. 26.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the time of day is the one thing we change. (a) True (b) False
27. 27.🛟 While watching shadows outdoors, what must you never do? (a) mark with chalk (b) sit in the shade (c) look straight at the Sun (d) wear a cap
28. 28.🧺 Which of these is needed for the shadow clock? (a) a balloon (b) a straight stick (c) yeast (d) a mirror
29. 29.⚖️ 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 same spot
30. 30.True or false: a clock to check is needed for the shadow clock. (a) False (b) True
31. 31.🧺 Do we need a mirror for the shadow clock? (a) needed (b) not needed
32. 32.🔦 Which of these is transparent? (a) a wooden board (b) a brick (c) a book (d) clear glass
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 measure it (c) we keep it the same
34. 34.🔦 Is clear glass opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
35. 35.🧺 Which of these is needed for the shadow clock? (a) a battery cell (b) a balloon (c) turmeric powder (d) chalk to mark shadows
36. 36.⚖️ 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 spot
37. 37.🔦 Is a book opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
38. 38.🔦 Is tissue paper opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
39. 39.🧺 Which of these is needed for the shadow clock? (a) turmeric powder (b) a balloon (c) a sunny open place (d) yeast
40. 40.True or false: chalk to mark shadows is not needed for the shadow clock. (a) True (b) False

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