Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 114 · 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.🔦 Which of these is opaque? (a) a steel plate (b) oily paper (c) clear plastic film (d) butter paper
2. 2.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) shadow length (b) the time of day (c) the stick kept upright (d) the same stick
3. 3.🔮 Predict: on a fully cloudy day, the sundial ___. (a) shows two times (b) runs faster (c) works better (d) does not work well
4. 4.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a balloon (b) a straight stick (c) a clock to check (d) a sunny open place
5. 5.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a magnet (b) a clock to check (c) a straight stick (d) chalk to mark shadows
6. 6.🛟 While watching shadows outdoors, what must you never do? (a) wear a cap (b) mark with chalk (c) sit in the shade (d) look straight at the Sun
7. 7.🌍 Why does the stick’s shadow move during the day? (a) Earth keeps spinning (b) the stick grows (c) the stick walks (d) the ground slides
8. 8.🧺 Which of these is not needed for the shadow clock? (a) a mirror (b) a straight stick (c) a sunny open place (d) a clock to check
9. 9.🔦 Is air opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
10. 10.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same spot is the one thing we change. (a) False (b) True
11. 11.⚖️ 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 same spot
12. 12.🔍 Which is the odd one out? (a) oily paper (b) your hand (c) a steel plate (d) a wooden board
13. 13.🧺 Do we need a sunny open place for the shadow clock? (a) needed (b) not needed
14. 14.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) a sunny open place (c) turmeric powder (d) a straight stick
15. 15.⚖️ 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
16. 16.🛟 What should you wear for a long time in the hot sun? (a) a cap or hat (b) nothing on your head (c) a raincoat (d) a woollen sweater
17. 17.🧺 Do we need a clock to check for the shadow clock? (a) needed (b) not needed
18. 18.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) up (b) north (c) east (d) west
19. 19.🔍 Which is the odd one out? (a) a wooden board (b) a brick (c) clean water (d) a book
20. 20.🔍 Which is the odd one out? (a) a steel plate (b) a book (c) butter paper (d) a wooden board
21. 21.🔦 Which of these is opaque? (a) air (b) your hand (c) clear plastic film (d) tissue paper
22. 22.True or false: clean water is transparent. (a) True (b) False
23. 23.True or false: oily paper is opaque. (a) False (b) True
24. 24.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) a clock to check (c) a battery cell (d) a straight stick
25. 25.🧺 Which of these is needed for the shadow clock? (a) a mirror (b) turmeric powder (c) a clock to check (d) a balloon
26. 26.🔦 Is tissue paper opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
27. 27.🔍 Which is the odd one out? (a) clear plastic film (b) air (c) clean water (d) your hand
28. 28.🔦 Which of these is opaque? (a) a brick (b) oily paper (c) butter paper (d) clear plastic film
29. 29.🧺 Do we need chalk to mark shadows for the shadow clock? (a) not needed (b) needed
30. 30.🔍 Which is the odd one out? (a) oily paper (b) butter paper (c) tissue paper (d) a book
31. 31.🧺 Which of these is needed for the shadow clock? (a) a magnet (b) a battery cell (c) a mirror (d) a straight stick
32. 32.⚖️ 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) False (b) True
33. 33.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) yeast (c) a straight stick (d) chalk to mark shadows
34. 34.🧺 Do we need a straight stick for the shadow clock? (a) needed (b) not needed
35. 35.True or false: a sunny open place is not needed for the shadow clock. (a) False (b) True
36. 36.🕰️ What is a sundial used for? (a) making rainbows (b) measuring rain (c) weighing things (d) telling the time
37. 37.🧺 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
38. 38.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) coloured (b) brighter (c) smaller (d) bigger
39. 39.🔦 Is a book opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
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) False (b) True

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