Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 926 · 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 “shadow length”? (a) we measure it (b) we change it (c) we keep it the same
2. 2.🧺 Which of these is needed for the shadow clock? (a) a mirror (b) a magnet (c) turmeric powder (d) a straight stick
3. 3.🔍 Which is the odd one out? (a) clear glass (b) a wooden board (c) your hand (d) a book
4. 4.🔮 Predict: on a fully cloudy day, the sundial ___. (a) shows two times (b) works better (c) runs faster (d) does not work well
5. 5.⚖️ 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
6. 6.🔦 Is a steel plate opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
7. 7.True or false: a magnet is needed for the shadow clock. (a) False (b) True
8. 8.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) the same spot (b) the same stick (c) shadow length (d) the stick kept upright
9. 9.🔦 Which of these is opaque? (a) a book (b) oily paper (c) clean water (d) clear glass
10. 10.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) chalk to mark shadows (c) a sunny open place (d) a balloon
11. 11.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same stick”? (a) we keep it the same (b) we measure it (c) we change it
12. 12.🧺 Do we need a magnet for the shadow clock? (a) needed (b) not needed
13. 13.🔍 Which is the odd one out? (a) a wooden board (b) a book (c) frosted glass (d) a brick
14. 14.🔦 Which of these is transparent? (a) air (b) butter paper (c) your hand (d) tissue paper
15. 15.🔦 Which of these is transparent? (a) clear plastic film (b) a steel plate (c) frosted glass (d) a book
16. 16.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) smaller (b) brighter (c) coloured (d) bigger
17. 17.True or false: chalk to mark shadows is not needed for the shadow clock. (a) False (b) True
18. 18.True or false: butter paper is transparent. (a) False (b) True
19. 19.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) a sunny open place (c) a straight stick (d) a battery cell
20. 20.🔦 Which of these is translucent? (a) a book (b) your hand (c) frosted glass (d) a brick
21. 21.True or false: oily paper is transparent. (a) True (b) False
22. 22.🧺 Which of these is not needed for the shadow clock? (a) a mirror (b) a sunny open place (c) a clock to check (d) a straight stick
23. 23.🧺 Do we need a battery cell for the shadow clock? (a) not needed (b) needed
24. 24.🔦 Which of these is opaque? (a) air (b) clear plastic film (c) a steel plate (d) butter paper
25. 25.🛟 What should you wear for a long time in the hot sun? (a) a cap or hat (b) nothing on your head (c) a woollen sweater (d) a raincoat
26. 26.True or false: frosted glass is opaque. (a) False (b) True
27. 27.🧺 Do we need a mirror for the shadow clock? (a) not needed (b) needed
28. 28.🛟 While watching shadows outdoors, what must you never do? (a) mark with chalk (b) wear a cap (c) look straight at the Sun (d) sit in the shade
29. 29.🌍 Why does the stick’s shadow move during the day? (a) the ground slides (b) the stick walks (c) the stick grows (d) Earth keeps spinning
30. 30.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a straight stick (c) yeast (d) a sunny open place
31. 31.🧺 Do we need a balloon for the shadow clock? (a) needed (b) not needed
32. 32.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) up (b) west (c) east (d) north
33. 33.🔦 Which of these is transparent? (a) a book (b) a steel plate (c) a brick (d) clear glass
34. 34.🔍 Which is the odd one out? (a) a wooden board (b) clean water (c) clear plastic film (d) clear glass
35. 35.🔍 Which is the odd one out? (a) oily paper (b) clean water (c) tissue paper (d) butter paper
36. 36.True or false: oily paper is opaque. (a) False (b) True
37. 37.🔦 Is tissue paper opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
38. 38.True or false: a balloon is needed for the shadow clock. (a) False (b) True
39. 39.🧺 Which of these is not needed for the shadow clock? (a) a clock to check (b) chalk to mark shadows (c) a straight stick (d) turmeric powder
40. 40.🔍 Which is the odd one out? (a) air (b) clear plastic film (c) clean water (d) your hand

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