Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 487 · 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.🛟 While watching shadows outdoors, what must you never do? (a) sit in the shade (b) mark with chalk (c) wear a cap (d) look straight at the Sun
2. 2.⚖️ 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
3. 3.🔦 Which of these is opaque? (a) air (b) oily paper (c) tissue paper (d) a wooden board
4. 4.True or false: a sunny open place is not needed for the shadow clock. (a) True (b) False
5. 5.🔍 Which is the odd one out? (a) clear plastic film (b) clear glass (c) clean water (d) a brick
6. 6.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “shadow length”? (a) we measure it (b) we keep it the same (c) we change it
7. 7.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: shadow length is what we measure. (a) False (b) True
8. 8.🔦 Which of these is translucent? (a) a wooden board (b) your hand (c) tissue paper (d) a brick
9. 9.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is what we measure. (a) True (b) False
10. 10.⚖️ 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
11. 11.🔦 Is your hand opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
12. 12.🔦 Is clean water opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
13. 13.🛟 What should you wear for a long time in the hot sun? (a) nothing on your head (b) a raincoat (c) a woollen sweater (d) a cap or hat
14. 14.🔦 Which of these is translucent? (a) frosted glass (b) a steel plate (c) air (d) a book
15. 15.🔦 Is a brick opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
16. 16.🧺 Which of these is needed for the shadow clock? (a) turmeric powder (b) a clock to check (c) a magnet (d) a mirror
17. 17.🧺 Which of these is needed for the shadow clock? (a) a balloon (b) a straight stick (c) turmeric powder (d) a mirror
18. 18.🔦 Is clear plastic film opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
19. 19.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the stick kept upright is kept the same. (a) True (b) False
20. 20.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is the one thing we change? (a) the time of day (b) the same stick (c) shadow length (d) the stick kept upright
21. 21.🧺 Do we need a clock to check for the shadow clock? (a) not needed (b) needed
22. 22.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a sunny open place (c) a battery cell (d) a clock to check
23. 23.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is kept the same. (a) True (b) False
24. 24.🧺 Which of these is not needed for the shadow clock? (a) a clock to check (b) a straight stick (c) a mirror (d) chalk to mark shadows
25. 25.True or false: a straight stick is needed for the shadow clock. (a) False (b) True
26. 26.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) turmeric powder (c) a straight stick (d) a sunny open place
27. 27.True or false: clean water is translucent. (a) False (b) True
28. 28.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) a straight stick (c) a balloon (d) chalk to mark shadows
29. 29.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) a straight stick (c) a clock to check (d) a magnet
30. 30.True or false: a wooden board is translucent. (a) True (b) False
31. 31.🧺 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 sunny open place
32. 32.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) round (b) short (c) long (d) missing
33. 33.True or false: butter paper is opaque. (a) False (b) True
34. 34.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) east (b) west (c) north (d) up
35. 35.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) a straight stick (c) turmeric powder (d) a clock to check
36. 36.🕰️ What is a sundial used for? (a) measuring rain (b) making rainbows (c) telling the time (d) weighing things
37. 37.True or false: a mirror is not needed for the shadow clock. (a) False (b) True
38. 38.🔍 Which is the odd one out? (a) clear plastic film (b) clear glass (c) tissue paper (d) clean water
39. 39.📘 Why does a shadow form? (a) light bends round it (b) the ground is dark (c) an object blocks light (d) the object is cold
40. 40.🔦 Is clear glass opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque

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