Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 213 · 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.🌍 Why does the stick’s shadow move during the day? (a) the stick walks (b) the ground slides (c) the stick grows (d) Earth keeps spinning
2. 2.⚖️ 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
3. 3.⚖️ 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 keep it the same (c) we measure it
4. 4.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) east (b) up (c) north (d) west
5. 5.🔦 Which of these is opaque? (a) frosted glass (b) butter paper (c) clear glass (d) a wooden board
6. 6.⚖️ 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
7. 7.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) yeast (c) a straight stick (d) chalk to mark shadows
8. 8.🔦 Is clean water opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
9. 9.⚖️ 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
10. 10.🕰️ What is a sundial used for? (a) telling the time (b) measuring rain (c) weighing things (d) making rainbows
11. 11.🧺 Which of these is needed for the shadow clock? (a) a balloon (b) a sunny open place (c) a battery cell (d) yeast
12. 12.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a magnet (b) a sunny open place (c) a straight stick (d) chalk to mark shadows
13. 13.🔦 Is a steel plate opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
14. 14.🧺 Do we need a battery cell for the shadow clock? (a) not needed (b) needed
15. 15.⚖️ 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 change it (c) we keep it the same
16. 16.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) smaller (b) coloured (c) bigger (d) brighter
17. 17.🧺 Which of these is needed for the shadow clock? (a) yeast (b) a mirror (c) chalk to mark shadows (d) turmeric powder
18. 18.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) round (b) missing (c) long (d) short
19. 19.🧺 Do we need a sunny open place for the shadow clock? (a) needed (b) not needed
20. 20.🔍 Which is the odd one out? (a) air (b) clear plastic film (c) oily paper (d) clean water
21. 21.⚖️ 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 stick kept upright
22. 22.🧺 Which of these is needed for the shadow clock? (a) a straight stick (b) a magnet (c) a balloon (d) yeast
23. 23.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) a straight stick (c) a battery cell (d) a clock to check
24. 24.🧺 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 mirror (d) chalk to mark shadows
25. 25.🔦 Which of these is translucent? (a) your hand (b) clean water (c) a steel plate (d) tissue paper
26. 26.True or false: chalk to mark shadows is not needed for the shadow clock. (a) True (b) False
27. 27.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the time of day is what we measure. (a) True (b) False
28. 28.🧺 Do we need yeast for the shadow clock? (a) not needed (b) needed
29. 29.🧺 Do we need a mirror for the shadow clock? (a) needed (b) not needed
30. 30.🧺 Which of these is needed for the shadow clock? (a) a balloon (b) a battery cell (c) a clock to check (d) a mirror
31. 31.🔮 Predict: on a fully cloudy day, the sundial ___. (a) runs faster (b) shows two times (c) does not work well (d) works better
32. 32.🔍 Which is the odd one out? (a) a book (b) a brick (c) your hand (d) clear glass
33. 33.⚖️ 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
34. 34.True or false: a book is transparent. (a) False (b) True
35. 35.🔦 Which of these is transparent? (a) air (b) your hand (c) a wooden board (d) tissue paper
36. 36.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) a sunny open place (c) a balloon (d) a clock to check
37. 37.True or false: oily paper is opaque. (a) False (b) True
38. 38.True or false: a book is translucent. (a) True (b) False
39. 39.🔦 Which of these is opaque? (a) clear plastic film (b) air (c) a brick (d) frosted glass
40. 40.⚖️ 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

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