Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 773 · 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.🔦 Is a wooden board opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
2. 2.🛟 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
3. 3.True or false: a brick is opaque. (a) True (b) False
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 stick
5. 5.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) coloured (b) brighter (c) bigger (d) smaller
6. 6.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) yeast (c) a clock to check (d) a straight stick
7. 7.True or false: frosted glass is translucent. (a) False (b) True
8. 8.🧺 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 battery cell (d) a clock to check
9. 9.🧺 Which of these is needed for the shadow clock? (a) yeast (b) a magnet (c) a sunny open place (d) a battery cell
10. 10.🧺 Which of these is needed for the shadow clock? (a) a straight stick (b) a mirror (c) a battery cell (d) turmeric powder
11. 11.🧺 Which of these is not needed for the shadow clock? (a) turmeric powder (b) chalk to mark shadows (c) a straight stick (d) a sunny open place
12. 12.🌞 When is a stick’s shadow the shortest? (a) at night (b) late evening (c) early morning (d) around noon
13. 13.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the stick kept upright”? (a) we change it (b) we measure it (c) we keep it the same
14. 14.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same stick”? (a) we keep it the same (b) we change it (c) we measure it
15. 15.⚖️ 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
16. 16.🕰️ What is a sundial used for? (a) weighing things (b) measuring rain (c) making rainbows (d) telling the time
17. 17.🔦 Is butter paper opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
18. 18.True or false: oily paper is translucent. (a) False (b) True
19. 19.True or false: a mirror is needed for the shadow clock. (a) False (b) True
20. 20.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: shadow length is what we measure. (a) True (b) False
21. 21.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) the time of day (b) shadow length (c) the same stick (d) the same spot
22. 22.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) up (b) west (c) east (d) north
23. 23.🔍 Which is the odd one out? (a) tissue paper (b) clear glass (c) butter paper (d) frosted glass
24. 24.🔦 Which of these is transparent? (a) clear glass (b) tissue paper (c) a wooden board (d) a brick
25. 25.True or false: yeast is not needed for the shadow clock. (a) False (b) True
26. 26.🛟 What should you wear for a long time in the hot sun? (a) a woollen sweater (b) a raincoat (c) nothing on your head (d) a cap or hat
27. 27.🧺 Do we need a straight stick for the shadow clock? (a) needed (b) not needed
28. 28.🧺 Which of these is needed for the shadow clock? (a) chalk to mark shadows (b) turmeric powder (c) a mirror (d) a magnet
29. 29.True or false: a clock to check is needed for the shadow clock. (a) True (b) False
30. 30.True or false: chalk to mark shadows is needed for the shadow clock. (a) False (b) True
31. 31.True or false: yeast is needed for the shadow clock. (a) True (b) False
32. 32.📘 Why does a shadow form? (a) the ground is dark (b) the object is cold (c) light bends round it (d) an object blocks light
33. 33.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) a balloon (c) a sunny open place (d) a straight stick
34. 34.🧺 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 mirror (d) a clock to check
35. 35.🧺 Which of these is needed for the shadow clock? (a) a mirror (b) a clock to check (c) turmeric powder (d) a battery cell
36. 36.🧺 Do we need turmeric powder for the shadow clock? (a) not needed (b) needed
37. 37.True or false: a straight stick is not needed for the shadow clock. (a) False (b) True
38. 38.True or false: air is transparent. (a) True (b) False
39. 39.⚖️ 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
40. 40.True or false: a balloon is needed for the shadow clock. (a) True (b) False

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