Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 118 · 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 opaque? (a) tissue paper (b) clean water (c) a brick (d) clear plastic film
2. 2.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) turmeric powder (c) chalk to mark shadows (d) a straight stick
3. 3.🧺 Which of these is needed for the shadow clock? (a) a straight stick (b) a magnet (c) turmeric powder (d) a balloon
4. 4.⚖️ 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
5. 5.🌞 When is a stick’s shadow the shortest? (a) around noon (b) at night (c) early morning (d) late evening
6. 6.🔦 Which of these is translucent? (a) butter paper (b) clean water (c) clear glass (d) a wooden board
7. 7.🧺 Do we need a straight stick for the shadow clock? (a) not needed (b) needed
8. 8.🧺 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 straight stick (d) a battery cell
9. 9.🕰️ What is a sundial used for? (a) weighing things (b) making rainbows (c) measuring rain (d) telling the time
10. 10.⚖️ 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
11. 11.🧺 Which of these is needed for the shadow clock? (a) a battery cell (b) a clock to check (c) turmeric powder (d) a magnet
12. 12.🛟 What should you wear for a long time in the hot sun? (a) a raincoat (b) nothing on your head (c) a woollen sweater (d) a cap or hat
13. 13.🔦 Which of these is opaque? (a) air (b) clear plastic film (c) clear glass (d) your hand
14. 14.True or false: a clock to check is not needed for the shadow clock. (a) True (b) False
15. 15.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same stick”? (a) we change it (b) we measure it (c) we keep it the same
16. 16.🧺 Do we need a sunny open place for the shadow clock? (a) needed (b) not needed
17. 17.🔍 Which is the odd one out? (a) your hand (b) a steel plate (c) frosted glass (d) a brick
18. 18.🔦 Is clear plastic film opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
19. 19.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the time of day”? (a) we change it (b) we keep it the same (c) we measure it
20. 20.⚖️ 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 stick kept upright
21. 21.🧺 Which of these is not needed for the shadow clock? (a) a clock to check (b) a balloon (c) a sunny open place (d) a straight stick
22. 22.🧺 Which of these is needed for the shadow clock? (a) a magnet (b) turmeric powder (c) a balloon (d) a sunny open place
23. 23.🔍 Which is the odd one out? (a) frosted glass (b) butter paper (c) air (d) tissue paper
24. 24.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is the one thing we change? (a) the stick kept upright (b) the same spot (c) the time of day (d) shadow length
25. 25.⚖️ 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
26. 26.⚖️ 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) False (b) True
27. 27.🧺 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) a balloon
28. 28.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same spot is what we measure. (a) True (b) False
29. 29.🔍 Which is the odd one out? (a) a steel plate (b) a book (c) butter paper (d) a wooden board
30. 30.⚖️ 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) shadow length (d) the same spot
31. 31.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is the one thing we change. (a) True (b) False
32. 32.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a magnet (c) a sunny open place (d) chalk to mark shadows
33. 33.🔍 Which is the odd one out? (a) a wooden board (b) clean water (c) a brick (d) a book
34. 34.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is kept the same? (a) the same stick (b) the time of day (c) shadow length
35. 35.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) smaller (b) brighter (c) bigger (d) coloured
36. 36.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) a battery cell (c) a sunny open place (d) a clock to check
37. 37.True or false: a mirror is needed for the shadow clock. (a) True (b) False
38. 38.🛟 While watching shadows outdoors, what must you never do? (a) wear a cap (b) sit in the shade (c) mark with chalk (d) look straight at the Sun
39. 39.True or false: yeast is needed for the shadow clock. (a) True (b) False
40. 40.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) short (b) missing (c) long (d) round

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