Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 144 · 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 measure it (b) we keep it the same (c) we change it
2. 2.⚖️ 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) the stick kept upright (c) the same stick (d) shadow length
3. 3.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) short (b) missing (c) round (d) long
4. 4.🔦 Which of these is translucent? (a) clean water (b) tissue paper (c) clear glass (d) a steel plate
5. 5.🧺 Which of these is not needed for the shadow clock? (a) a mirror (b) a straight stick (c) a clock to check (d) chalk to mark shadows
6. 6.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is the one thing we change? (a) the stick kept upright (b) the same stick (c) the time of day (d) the same spot
7. 7.🔍 Which is the odd one out? (a) a book (b) a steel plate (c) a wooden board (d) oily paper
8. 8.🔦 Which of these is translucent? (a) air (b) a wooden board (c) clean water (d) oily paper
9. 9.🔦 Is clear plastic film opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
10. 10.🔦 Is clear glass opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
11. 11.True or false: a sunny open place is not needed for the shadow clock. (a) True (b) False
12. 12.🧺 Do we need a battery cell for the shadow clock? (a) needed (b) not needed
13. 13.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) a balloon (c) a straight stick (d) a sunny open place
14. 14.🔦 Is butter paper opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
15. 15.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: shadow length is what we measure. (a) False (b) True
16. 16.🔦 Which of these is opaque? (a) a wooden board (b) tissue paper (c) frosted glass (d) clear plastic film
17. 17.🧺 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) turmeric powder (d) a straight stick
18. 18.🔍 Which is the odd one out? (a) oily paper (b) butter paper (c) clear plastic film (d) frosted glass
19. 19.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: shadow length is kept the same. (a) False (b) True
20. 20.True or false: a sunny open place is needed for the shadow clock. (a) False (b) True
21. 21.🧺 Do we need a balloon for the shadow clock? (a) not needed (b) needed
22. 22.⚖️ 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 keep it the same (c) we change it
23. 23.🧺 Which of these is needed for the shadow clock? (a) turmeric powder (b) yeast (c) chalk to mark shadows (d) a magnet
24. 24.True or false: yeast is needed for the shadow clock. (a) False (b) True
25. 25.🔍 Which is the odd one out? (a) air (b) clear glass (c) clear plastic film (d) a brick
26. 26.🔍 Which is the odd one out? (a) your hand (b) clean water (c) a book (d) a wooden board
27. 27.🔦 Is your hand opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
28. 28.📘 Why does a shadow form? (a) an object blocks light (b) light bends round it (c) the object is cold (d) the ground is dark
29. 29.🌍 Why does the stick’s shadow move during the day? (a) the stick grows (b) the ground slides (c) Earth keeps spinning (d) the stick walks
30. 30.🔮 Predict: on a fully cloudy day, the sundial ___. (a) runs faster (b) works better (c) shows two times (d) does not work well
31. 31.🧺 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) yeast
32. 32.🔦 Which of these is transparent? (a) clean water (b) a wooden board (c) oily paper (d) your hand
33. 33.🔦 Which of these is opaque? (a) air (b) clear glass (c) oily paper (d) a book
34. 34.🧺 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 battery cell (d) a sunny open place
35. 35.🧺 Do we need a sunny open place for the shadow clock? (a) not needed (b) needed
36. 36.⚖️ 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
37. 37.🔦 Which of these is opaque? (a) oily paper (b) clear glass (c) a brick (d) clear plastic film
38. 38.🧺 Which of these is needed for the shadow clock? (a) a sunny open place (b) a mirror (c) a balloon (d) a magnet
39. 39.🧺 Do we need a clock to check for the shadow clock? (a) not needed (b) needed
40. 40.🔍 Which is the odd one out? (a) clear glass (b) clear plastic film (c) a book (d) air

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