Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 666 · 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? True or false: the stick kept upright is kept the same. (a) False (b) True
2. 2.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) short (b) round (c) missing (d) long
3. 3.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) smaller (b) coloured (c) brighter (d) bigger
4. 4.🔍 Which is the odd one out? (a) a book (b) butter paper (c) your hand (d) a brick
5. 5.True or false: clear glass is translucent. (a) False (b) True
6. 6.True or false: a magnet is needed for the shadow clock. (a) False (b) True
7. 7.⚖️ 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
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 measure it (b) we keep it the same (c) we change it
9. 9.🔮 Predict: on a fully cloudy day, the sundial ___. (a) does not work well (b) runs faster (c) shows two times (d) works better
10. 10.🔦 Which of these is opaque? (a) clean water (b) clear plastic film (c) tissue paper (d) a book
11. 11.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is the one thing we change? (a) the time of day (b) the same stick (c) shadow length (d) the same spot
12. 12.🔦 Which of these is translucent? (a) clear plastic film (b) tissue paper (c) clear glass (d) air
13. 13.🛟 While watching shadows outdoors, what must you never do? (a) look straight at the Sun (b) wear a cap (c) sit in the shade (d) mark with chalk
14. 14.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) a clock to check (c) a balloon (d) a straight stick
15. 15.🔍 Which is the odd one out? (a) clean water (b) tissue paper (c) air (d) clear glass
16. 16.🔍 Which is the odd one out? (a) frosted glass (b) butter paper (c) tissue paper (d) a steel plate
17. 17.⚖️ 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
18. 18.True or false: yeast is needed for the shadow clock. (a) False (b) True
19. 19.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is kept the same? (a) the same spot (b) the time of day (c) shadow length
20. 20.True or false: a magnet is not needed for the shadow clock. (a) True (b) False
21. 21.🧺 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 mirror
22. 22.⚖️ 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 change it (c) we measure it
23. 23.True or false: a mirror is not needed for the shadow clock. (a) False (b) True
24. 24.⚖️ 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
25. 25.True or false: a balloon is not needed for the shadow clock. (a) False (b) True
26. 26.🧺 Do we need turmeric powder for the shadow clock? (a) not needed (b) needed
27. 27.True or false: a battery cell is needed for the shadow clock. (a) False (b) True
28. 28.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) north (b) up (c) west (d) east
29. 29.🧺 Do we need a battery cell for the shadow clock? (a) needed (b) not needed
30. 30.🧺 Do we need a magnet for the shadow clock? (a) needed (b) not needed
31. 31.🔦 Which of these is transparent? (a) frosted glass (b) clear plastic film (c) your hand (d) a brick
32. 32.🔍 Which is the odd one out? (a) air (b) clear glass (c) clear plastic film (d) oily paper
33. 33.🔦 Is frosted glass opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
34. 34.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) yeast (c) a straight stick (d) a sunny open place
35. 35.🔍 Which is the odd one out? (a) a wooden board (b) clean water (c) air (d) clear plastic film
36. 36.🧺 Do we need a clock to check for the shadow clock? (a) not needed (b) needed
37. 37.True or false: turmeric powder is needed for the shadow clock. (a) True (b) False
38. 38.⚖️ 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
39. 39.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the stick kept upright”? (a) we measure it (b) we keep it the same (c) we change it
40. 40.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a magnet (b) a sunny open place (c) chalk to mark shadows (d) a straight stick

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