Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 708 · 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 your hand opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
2. 2.⚖️ 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
3. 3.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same stick”? (a) we measure it (b) we change it (c) we keep it the same
4. 4.🔦 Which of these is transparent? (a) a steel plate (b) a brick (c) frosted glass (d) clean water
5. 5.🔍 Which is the odd one out? (a) butter paper (b) oily paper (c) clean water (d) frosted glass
6. 6.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) up (b) east (c) north (d) west
7. 7.⚖️ 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 stick kept upright (c) shadow length (d) the same spot
8. 8.🧺 Do we need a straight stick for the shadow clock? (a) not needed (b) needed
9. 9.⚖️ 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
10. 10.🛟 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
11. 11.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) bigger (b) brighter (c) coloured (d) smaller
12. 12.🔦 Which of these is transparent? (a) butter paper (b) air (c) a wooden board (d) tissue paper
13. 13.🛟 While watching shadows outdoors, what must you never do? (a) look straight at the Sun (b) mark with chalk (c) sit in the shade (d) wear a cap
14. 14.🔦 Which of these is translucent? (a) a brick (b) clear glass (c) clear plastic film (d) tissue paper
15. 15.📘 Why does a shadow form? (a) an object blocks light (b) the ground is dark (c) light bends round it (d) the object is cold
16. 16.🧺 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 balloon (d) a sunny open place
17. 17.True or false: a mirror is needed for the shadow clock. (a) True (b) False
18. 18.🔦 Which of these is transparent? (a) oily paper (b) a book (c) clear glass (d) tissue paper
19. 19.🔍 Which is the odd one out? (a) a wooden board (b) a book (c) a brick (d) butter paper
20. 20.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: shadow length is the one thing we change. (a) False (b) True
21. 21.🔍 Which is the odd one out? (a) tissue paper (b) butter paper (c) clear glass (d) oily paper
22. 22.🧺 Do we need a magnet for the shadow clock? (a) needed (b) not needed
23. 23.🌞 When is a stick’s shadow the shortest? (a) late evening (b) early morning (c) at night (d) around noon
24. 24.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) round (b) missing (c) short (d) long
25. 25.🧺 Do we need a clock to check for the shadow clock? (a) not needed (b) needed
26. 26.🔦 Is tissue paper opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
27. 27.🔦 Is a book opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
28. 28.True or false: a clock to check is needed for the shadow clock. (a) False (b) True
29. 29.🧺 Do we need turmeric powder for the shadow clock? (a) not needed (b) needed
30. 30.🔦 Is a wooden board opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
31. 31.🧺 Do we need a sunny open place for the shadow clock? (a) not needed (b) needed
32. 32.True or false: clear glass is translucent. (a) False (b) True
33. 33.True or false: turmeric powder is needed for the shadow clock. (a) False (b) True
34. 34.🔦 Is clear plastic film opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
35. 35.🧺 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 mirror
36. 36.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a clock to check (c) turmeric powder (d) a sunny open place
37. 37.🔦 Is clear glass opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
38. 38.🧺 Do we need a mirror for the shadow clock? (a) not needed (b) needed
39. 39.🧺 Which of these is needed for the shadow clock? (a) a straight stick (b) a balloon (c) a battery cell (d) yeast
40. 40.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) a straight stick (c) a magnet (d) chalk to mark shadows

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