Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 643 · 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.True or false: a straight stick is needed for the shadow clock. (a) True (b) False
2. 2.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) the time of day (b) the same spot (c) the same stick (d) shadow length
3. 3.🧺 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 balloon (d) a sunny open place
4. 4.🧺 Which of these is needed for the shadow clock? (a) turmeric powder (b) a battery cell (c) a clock to check (d) yeast
5. 5.⚖️ 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
6. 6.🔍 Which is the odd one out? (a) a brick (b) your hand (c) a wooden board (d) oily paper
7. 7.🧺 Do we need a magnet for the shadow clock? (a) not needed (b) needed
8. 8.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same spot”? (a) we keep it the same (b) we change it (c) we measure it
9. 9.🔍 Which is the odd one out? (a) frosted glass (b) clear plastic film (c) tissue paper (d) butter paper
10. 10.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) chalk to mark shadows (c) a straight stick (d) yeast
11. 11.🧺 Do we need chalk to mark shadows for the shadow clock? (a) needed (b) not needed
12. 12.🔮 Predict: on a fully cloudy day, the sundial ___. (a) shows two times (b) runs faster (c) does not work well (d) works better
13. 13.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same spot is kept the same. (a) True (b) False
14. 14.📘 Why does a shadow form? (a) the ground is dark (b) the object is cold (c) an object blocks light (d) light bends round it
15. 15.⚖️ 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
16. 16.🌞 When is a stick’s shadow the shortest? (a) at night (b) late evening (c) early morning (d) around noon
17. 17.🔦 Which of these is translucent? (a) a brick (b) butter paper (c) a wooden board (d) your hand
18. 18.⚖️ 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
19. 19.⚖️ 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) shadow length (c) the time of day (d) the same stick
20. 20.True or false: your hand is opaque. (a) True (b) False
21. 21.🔍 Which is the odd one out? (a) clear plastic film (b) clear glass (c) tissue paper (d) clean water
22. 22.True or false: a mirror is needed for the shadow clock. (a) True (b) False
23. 23.⚖️ 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
24. 24.⚖️ 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
25. 25.True or false: a balloon is not needed for the shadow clock. (a) True (b) False
26. 26.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) a magnet (c) a sunny open place (d) a straight stick
27. 27.⚖️ 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
28. 28.True or false: clear glass is opaque. (a) False (b) True
29. 29.🧺 Which of these is needed for the shadow clock? (a) a magnet (b) chalk to mark shadows (c) a battery cell (d) a mirror
30. 30.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) smaller (b) coloured (c) bigger (d) brighter
31. 31.🛟 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
32. 32.⚖️ 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
33. 33.True or false: a brick is opaque. (a) False (b) True
34. 34.🔦 Which of these is transparent? (a) a wooden board (b) a steel plate (c) a brick (d) clean water
35. 35.⚖️ 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
36. 36.🔦 Which of these is opaque? (a) clear plastic film (b) your hand (c) air (d) frosted glass
37. 37.🧺 Do we need turmeric powder for the shadow clock? (a) needed (b) not needed
38. 38.🛟 While watching shadows outdoors, what must you never do? (a) sit in the shade (b) wear a cap (c) mark with chalk (d) look straight at the Sun
39. 39.🧺 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
40. 40.True or false: a battery cell is not needed for the shadow clock. (a) True (b) False

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