Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 655 · 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.🧺 Do we need a mirror for the shadow clock? (a) not needed (b) needed
2. 2.True or false: chalk to mark shadows is needed for the shadow clock. (a) True (b) False
3. 3.🔦 Which of these is opaque? (a) oily paper (b) air (c) tissue paper (d) a steel plate
4. 4.⚖️ 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) True (b) False
5. 5.🔦 Is your hand opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
6. 6.True or false: a magnet is needed for the shadow clock. (a) True (b) False
7. 7.📘 Why does a shadow form? (a) the ground is dark (b) light bends round it (c) the object is cold (d) an object blocks light
8. 8.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) long (b) round (c) missing (d) short
9. 9.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a straight stick (c) chalk to mark shadows (d) a mirror
10. 10.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is the one thing we change? (a) the same stick (b) shadow length (c) the same spot (d) the time of day
11. 11.🔮 Predict: on a fully cloudy day, the sundial ___. (a) does not work well (b) works better (c) runs faster (d) shows two times
12. 12.🛟 While watching shadows outdoors, what must you never do? (a) look straight at the Sun (b) wear a cap (c) sit in the shade (d) mark with chalk
13. 13.🧺 Which of these is needed for the shadow clock? (a) a balloon (b) a clock to check (c) turmeric powder (d) a magnet
14. 14.🧺 Do we need a balloon for the shadow clock? (a) not needed (b) needed
15. 15.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) a clock to check (c) a straight stick (d) a balloon
16. 16.🌍 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
17. 17.🔦 Is frosted glass opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
18. 18.True or false: a battery cell is needed for the shadow clock. (a) True (b) False
19. 19.🔦 Is clear plastic film opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
20. 20.⚖️ 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 change it (c) we measure it
21. 21.⚖️ 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
22. 22.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) turmeric powder (b) chalk to mark shadows (c) a clock to check (d) a sunny open place
23. 23.True or false: air is opaque. (a) True (b) False
24. 24.⚖️ 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 measure it (c) we keep it the same
25. 25.True or false: frosted glass is translucent. (a) False (b) True
26. 26.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is kept the same. (a) False (b) True
27. 27.🛟 What should you wear for a long time in the hot sun? (a) a woollen sweater (b) nothing on your head (c) a raincoat (d) a cap or hat
28. 28.🧺 Do we need a magnet for the shadow clock? (a) not needed (b) needed
29. 29.True or false: a book is opaque. (a) True (b) False
30. 30.⚖️ 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
31. 31.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the time of day is the one thing we change. (a) False (b) True
32. 32.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) a sunny open place (c) a battery cell (d) a clock to check
33. 33.True or false: clear glass is transparent. (a) False (b) True
34. 34.🧺 Do we need a sunny open place for the shadow clock? (a) needed (b) not needed
35. 35.🧺 Which of these is needed for the shadow clock? (a) yeast (b) a mirror (c) a straight stick (d) a magnet
36. 36.🔦 Which of these is opaque? (a) a book (b) air (c) clean water (d) frosted glass
37. 37.🧺 Do we need a battery cell for the shadow clock? (a) not needed (b) needed
38. 38.🌞 When is a stick’s shadow the shortest? (a) late evening (b) around noon (c) at night (d) early morning
39. 39.⚖️ 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 stick kept upright (d) the same stick
40. 40.🔍 Which is the odd one out? (a) clean water (b) clear glass (c) tissue paper (d) clear plastic film

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