Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 186 · 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.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) a sunny open place (c) a clock to check (d) a balloon
2. 2.🌞 When is a stick’s shadow the shortest? (a) at night (b) late evening (c) early morning (d) around noon
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.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a battery cell (c) a clock to check (d) a sunny open place
5. 5.🔍 Which is the odd one out? (a) frosted glass (b) butter paper (c) tissue paper (d) a wooden board
6. 6.⚖️ 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
7. 7.True or false: a brick is opaque. (a) False (b) True
8. 8.🧺 Which of these is needed for the shadow clock? (a) turmeric powder (b) a battery cell (c) chalk to mark shadows (d) a mirror
9. 9.🔍 Which is the odd one out? (a) clean water (b) air (c) clear plastic film (d) a book
10. 10.🛟 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
11. 11.⚖️ 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
12. 12.⚖️ 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 stick kept upright (c) the same stick (d) the time of day
13. 13.🧺 Do we need chalk to mark shadows for the shadow clock? (a) not needed (b) needed
14. 14.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) a sunny open place (c) turmeric powder (d) a straight stick
15. 15.True or false: a brick is transparent. (a) False (b) True
16. 16.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) up (b) west (c) north (d) east
17. 17.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) the same spot (b) the stick kept upright (c) the time of day (d) shadow length
18. 18.True or false: a mirror is needed for the shadow clock. (a) False (b) True
19. 19.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) long (b) missing (c) round (d) short
20. 20.🔦 Which of these is opaque? (a) air (b) butter paper (c) a steel plate (d) clean water
21. 21.🧺 Which of these is needed for the shadow clock? (a) a battery cell (b) yeast (c) a clock to check (d) a magnet
22. 22.🔦 Which of these is transparent? (a) a book (b) clear plastic film (c) frosted glass (d) oily paper
23. 23.True or false: turmeric powder is needed for the shadow clock. (a) False (b) True
24. 24.🔍 Which is the odd one out? (a) a book (b) your hand (c) a brick (d) clear glass
25. 25.🔦 Which of these is transparent? (a) your hand (b) tissue paper (c) a book (d) air
26. 26.🧺 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 sunny open place (d) a magnet
27. 27.True or false: your hand is transparent. (a) False (b) True
28. 28.🔦 Which of these is transparent? (a) a brick (b) frosted glass (c) clear glass (d) tissue paper
29. 29.🔍 Which is the odd one out? (a) clear plastic film (b) tissue paper (c) air (d) clear glass
30. 30.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) a clock to check (c) chalk to mark shadows (d) a mirror
31. 31.True or false: a straight stick is not needed for the shadow clock. (a) True (b) False
32. 32.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) brighter (b) bigger (c) coloured (d) smaller
33. 33.True or false: a clock to check is needed for the shadow clock. (a) True (b) False
34. 34.True or false: a magnet is not needed for the shadow clock. (a) False (b) True
35. 35.⚖️ 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 measure it (c) we change it
36. 36.⚖️ 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
37. 37.True or false: yeast is needed for the shadow clock. (a) False (b) True
38. 38.🧺 Do we need a straight stick for the shadow clock? (a) needed (b) not needed
39. 39.⚖️ 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 stick kept upright
40. 40.🧺 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) yeast

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