Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 683 · 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.🛟 What should you wear for a long time in the hot sun? (a) a woollen sweater (b) nothing on your head (c) a raincoat (d) a cap or hat
2. 2.⚖️ 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) shadow length (c) the same spot (d) the stick kept upright
3. 3.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the stick kept upright”? (a) we keep it the same (b) we measure it (c) we change it
4. 4.⚖️ 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
5. 5.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) chalk to mark shadows (c) turmeric powder (d) a straight stick
6. 6.🧺 Which of these is needed for the shadow clock? (a) a magnet (b) chalk to mark shadows (c) yeast (d) turmeric powder
7. 7.🧺 Do we need a straight stick for the shadow clock? (a) not needed (b) needed
8. 8.🧺 Which of these is not needed for the shadow clock? (a) a clock to check (b) a straight stick (c) yeast (d) a sunny open place
9. 9.🔍 Which is the odd one out? (a) a steel plate (b) air (c) your hand (d) a brick
10. 10.🔦 Is frosted glass opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
11. 11.🔦 Which of these is transparent? (a) frosted glass (b) a brick (c) butter paper (d) air
12. 12.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a sunny open place (c) chalk to mark shadows (d) a magnet
13. 13.🧺 Do we need turmeric powder for the shadow clock? (a) not needed (b) needed
14. 14.🌍 Why does the stick’s shadow move during the day? (a) the ground slides (b) the stick walks (c) the stick grows (d) Earth keeps spinning
15. 15.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a balloon (c) a sunny open place (d) chalk to mark shadows
16. 16.⚖️ 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
17. 17.🛟 While watching shadows outdoors, what must you never do? (a) wear a cap (b) look straight at the Sun (c) sit in the shade (d) mark with chalk
18. 18.🧺 Which of these is not needed for the shadow clock? (a) a balloon (b) chalk to mark shadows (c) a sunny open place (d) a clock to check
19. 19.🌞 When is a stick’s shadow the shortest? (a) around noon (b) at night (c) early morning (d) late evening
20. 20.True or false: butter paper is translucent. (a) True (b) False
21. 21.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) a battery cell (c) chalk to mark shadows (d) a clock to check
22. 22.True or false: oily paper is opaque. (a) True (b) False
23. 23.True or false: yeast is not needed for the shadow clock. (a) True (b) False
24. 24.⚖️ 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) True (b) False
25. 25.⚖️ 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
26. 26.🧺 Which of these is needed for the shadow clock? (a) a battery cell (b) yeast (c) a magnet (d) a sunny open place
27. 27.⚖️ 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) the same spot (c) shadow length
28. 28.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) a straight stick (c) a mirror (d) chalk to mark shadows
29. 29.True or false: a steel plate is translucent. (a) True (b) False
30. 30.True or false: a steel plate is opaque. (a) True (b) False
31. 31.🔦 Which of these is translucent? (a) a steel plate (b) a book (c) frosted glass (d) clear glass
32. 32.True or false: a battery cell is not needed for the shadow clock. (a) False (b) True
33. 33.🧺 Do we need a mirror for the shadow clock? (a) not needed (b) needed
34. 34.🧺 Which of these is needed for the shadow clock? (a) a battery cell (b) a straight stick (c) a balloon (d) a mirror
35. 35.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) brighter (b) bigger (c) smaller (d) coloured
36. 36.⚖️ 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
37. 37.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the time of day”? (a) we keep it the same (b) we change it (c) we measure it
38. 38.🧺 Do we need a sunny open place for the shadow clock? (a) not needed (b) needed
39. 39.True or false: frosted glass is opaque. (a) False (b) True
40. 40.⚖️ 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

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