Shadow and Sundial Experiment Worksheet

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

Free science experiments lessons, practice and worksheets at talentjr.in/science-experiments-for-kids