Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 777 · 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 is the odd one out? (a) clear plastic film (b) butter paper (c) clean water (d) clear glass
2. 2.🔦 Is a steel plate opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
3. 3.True or false: a straight stick is needed for the shadow clock. (a) False (b) True
4. 4.🔦 Is your hand opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
5. 5.🧺 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 clock to check (d) a mirror
6. 6.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) round (b) missing (c) short (d) long
7. 7.🧺 Do we need a clock to check for the shadow clock? (a) not needed (b) needed
8. 8.🔦 Is frosted glass opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
9. 9.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) a balloon (c) a straight stick (d) a clock to check
10. 10.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) the time of day (b) shadow length (c) the same spot (d) the stick kept upright
11. 11.🔍 Which is the odd one out? (a) tissue paper (b) your hand (c) frosted glass (d) butter paper
12. 12.🔍 Which is the odd one out? (a) clear glass (b) air (c) clear plastic film (d) frosted glass
13. 13.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: shadow length is what we measure. (a) True (b) False
14. 14.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is kept the same? (a) shadow length (b) the stick kept upright (c) the time of day
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 change it (b) we keep it the same (c) we measure it
16. 16.True or false: chalk to mark shadows is needed for the shadow clock. (a) False (b) True
17. 17.🔍 Which is the odd one out? (a) frosted glass (b) air (c) butter paper (d) oily paper
18. 18.🧺 Do we need a mirror for the shadow clock? (a) needed (b) not needed
19. 19.🔦 Which of these is translucent? (a) tissue paper (b) clear plastic film (c) clear glass (d) a wooden board
20. 20.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is kept the same? (a) shadow length (b) the time of day (c) the same stick
21. 21.🕰️ What is a sundial used for? (a) making rainbows (b) measuring rain (c) telling the time (d) weighing things
22. 22.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a straight stick (c) a balloon (d) a sunny open place
23. 23.🧺 Which of these is needed for the shadow clock? (a) a balloon (b) yeast (c) a sunny open place (d) a magnet
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) turmeric powder (d) a straight stick
25. 25.⚖️ 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 change it (c) we measure it
26. 26.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) brighter (b) bigger (c) coloured (d) smaller
27. 27.⚖️ 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) False (b) True
28. 28.🔦 Which of these is transparent? (a) butter paper (b) tissue paper (c) air (d) your hand
29. 29.⚖️ 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
30. 30.True or false: a mirror is needed for the shadow clock. (a) False (b) True
31. 31.⚖️ 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
32. 32.True or false: a magnet is needed for the shadow clock. (a) True (b) False
33. 33.True or false: a battery cell is not needed for the shadow clock. (a) True (b) False
34. 34.🧺 Which of these is needed for the shadow clock? (a) a battery cell (b) a clock to check (c) a mirror (d) a magnet
35. 35.🔦 Is air opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
36. 36.🧺 Which of these is not needed for the shadow clock? (a) a magnet (b) a straight stick (c) a sunny open place (d) a clock to check
37. 37.🔍 Which is the odd one out? (a) your hand (b) clear glass (c) a book (d) a brick
38. 38.🔦 Which of these is translucent? (a) air (b) frosted glass (c) a book (d) clear plastic film
39. 39.⚖️ 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 change it (c) we keep it the same
40. 40.🔦 Which of these is opaque? (a) frosted glass (b) a book (c) clear plastic film (d) butter paper

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