Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 262 · 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.⚖️ 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 time of day (c) the same spot (d) shadow length
2. 2.🌞 When is a stick’s shadow the shortest? (a) around noon (b) late evening (c) at night (d) early morning
3. 3.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same spot”? (a) we measure it (b) we change it (c) we keep it the same
4. 4.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) turmeric powder (c) a sunny open place (d) a clock to check
5. 5.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is what we measure. (a) False (b) True
6. 6.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) long (b) short (c) round (d) missing
7. 7.🔦 Is butter paper opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
8. 8.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) a straight stick (c) chalk to mark shadows (d) a balloon
9. 9.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the stick kept upright is the one thing we change. (a) True (b) False
10. 10.⚖️ 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
11. 11.🔦 Which of these is translucent? (a) your hand (b) a book (c) oily paper (d) air
12. 12.🧺 Do we need chalk to mark shadows for the shadow clock? (a) not needed (b) needed
13. 13.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is the one thing we change? (a) the same spot (b) the same stick (c) the stick kept upright (d) the time of day
14. 14.🧺 Do we need yeast for the shadow clock? (a) needed (b) not needed
15. 15.🔍 Which is the odd one out? (a) tissue paper (b) frosted glass (c) air (d) oily paper
16. 16.🔍 Which is the odd one out? (a) a wooden board (b) a brick (c) frosted glass (d) your hand
17. 17.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a clock to check (c) a sunny open place (d) yeast
18. 18.🔦 Which of these is opaque? (a) frosted glass (b) air (c) your hand (d) clean water
19. 19.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a battery cell (b) chalk to mark shadows (c) a straight stick (d) a clock to check
20. 20.🧺 Do we need turmeric powder for the shadow clock? (a) not needed (b) needed
21. 21.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a mirror (b) a straight stick (c) chalk to mark shadows (d) a clock to check
22. 22.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is kept the same. (a) False (b) True
23. 23.⚖️ 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 measure it (c) we change it
24. 24.⚖️ 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 spot
25. 25.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) smaller (b) brighter (c) bigger (d) coloured
26. 26.🛟 While watching shadows outdoors, what must you never do? (a) look straight at the Sun (b) mark with chalk (c) wear a cap (d) sit in the shade
27. 27.🧺 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 magnet (d) chalk to mark shadows
28. 28.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “shadow length”? (a) we change it (b) we keep it the same (c) we measure it
29. 29.📘 Why does a shadow form? (a) light bends round it (b) the object is cold (c) the ground is dark (d) an object blocks light
30. 30.🔍 Which is the odd one out? (a) frosted glass (b) oily paper (c) butter paper (d) a wooden board
31. 31.True or false: air is translucent. (a) True (b) False
32. 32.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) a straight stick (c) chalk to mark shadows (d) turmeric powder
33. 33.🛟 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
34. 34.🔍 Which is the odd one out? (a) a steel plate (b) clear glass (c) your hand (d) a brick
35. 35.🔦 Which of these is translucent? (a) air (b) a book (c) clear glass (d) tissue paper
36. 36.🧺 Which of these is needed for the shadow clock? (a) a sunny open place (b) a mirror (c) yeast (d) turmeric powder
37. 37.⚖️ 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
38. 38.🌍 Why does the stick’s shadow move during the day? (a) Earth keeps spinning (b) the stick grows (c) the ground slides (d) the stick walks
39. 39.🔦 Which of these is transparent? (a) a wooden board (b) your hand (c) a steel plate (d) clear glass
40. 40.🔦 Which of these is transparent? (a) clean water (b) tissue paper (c) a wooden board (d) a steel plate

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