Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 242 · 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? What do we do with “the same stick”? (a) we measure it (b) we keep it the same (c) we change it
2. 2.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is kept the same? (a) the stick kept upright (b) the time of day (c) shadow length
3. 3.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) missing (b) long (c) round (d) short
4. 4.🔍 Which is the odd one out? (a) a book (b) a brick (c) a wooden board (d) clear glass
5. 5.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) bigger (b) smaller (c) coloured (d) brighter
6. 6.🧺 Do we need a battery cell for the shadow clock? (a) needed (b) not needed
7. 7.🌞 When is a stick’s shadow the shortest? (a) early morning (b) around noon (c) at night (d) late evening
8. 8.🔮 Predict: on a fully cloudy day, the sundial ___. (a) runs faster (b) works better (c) shows two times (d) does not work well
9. 9.⚖️ 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 time of day (d) the same stick
10. 10.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the stick kept upright is what we measure. (a) True (b) False
11. 11.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) a magnet (c) a clock to check (d) chalk to mark shadows
12. 12.🔦 Is a book opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
13. 13.🧺 Do we need a straight stick for the shadow clock? (a) not needed (b) needed
14. 14.⚖️ 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
15. 15.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) turmeric powder (c) a clock to check (d) a sunny open place
16. 16.🛟 What should you wear for a long time in the hot sun? (a) a raincoat (b) nothing on your head (c) a cap or hat (d) a woollen sweater
17. 17.🧺 Do we need a clock to check for the shadow clock? (a) needed (b) not needed
18. 18.🔍 Which is the odd one out? (a) tissue paper (b) clear plastic film (c) frosted glass (d) butter paper
19. 19.🧺 Do we need a sunny open place for the shadow clock? (a) not needed (b) needed
20. 20.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same spot”? (a) we change it (b) we measure it (c) we keep it the same
21. 21.🔦 Is clear plastic film opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
22. 22.⚖️ 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 measure it (c) we change it
23. 23.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) a magnet (c) a straight stick (d) chalk to mark shadows
24. 24.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) chalk to mark shadows (c) a mirror (d) a sunny open place
25. 25.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) turmeric powder (c) a clock to check (d) a sunny open place
26. 26.🔦 Which of these is translucent? (a) a wooden board (b) a brick (c) butter paper (d) clear plastic film
27. 27.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the stick kept upright is kept the same. (a) False (b) True
28. 28.🧺 Do we need turmeric powder for the shadow clock? (a) not needed (b) needed
29. 29.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) yeast (c) a straight stick (d) a clock to check
30. 30.True or false: a sunny open place is needed for the shadow clock. (a) True (b) False
31. 31.True or false: frosted glass is translucent. (a) True (b) False
32. 32.🔦 Is your hand opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
33. 33.⚖️ 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
34. 34.True or false: clear plastic film is translucent. (a) False (b) True
35. 35.True or false: a straight stick is not needed for the shadow clock. (a) False (b) True
36. 36.🛟 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
37. 37.True or false: a wooden board is opaque. (a) False (b) True
38. 38.⚖️ 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
39. 39.True or false: yeast is not needed for the shadow clock. (a) False (b) True
40. 40.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) the stick kept upright (b) the same stick (c) shadow length (d) the same spot

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