Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 767 · 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? Which of these is what we measure? (a) the same stick (b) shadow length (c) the same spot (d) the time of day
2. 2.True or false: a straight stick is not needed for the shadow clock. (a) True (b) False
3. 3.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the stick kept upright”? (a) we keep it the same (b) we change it (c) we measure it
4. 4.🔮 Predict: on a fully cloudy day, the sundial ___. (a) runs faster (b) works better (c) shows two times (d) does not work well
5. 5.🔍 Which is the odd one out? (a) a wooden board (b) a brick (c) clear plastic film (d) your hand
6. 6.🧺 Which of these is needed for the shadow clock? (a) a balloon (b) a mirror (c) a clock to check (d) turmeric powder
7. 7.🔦 Which of these is transparent? (a) tissue paper (b) clear plastic film (c) a steel plate (d) frosted glass
8. 8.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the time of day”? (a) we change it (b) we keep it the same (c) we measure it
9. 9.🧺 Do we need chalk to mark shadows for the shadow clock? (a) not needed (b) needed
10. 10.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) yeast (c) chalk to mark shadows (d) a clock to check
11. 11.🌍 Why does the stick’s shadow move during the day? (a) the stick walks (b) the stick grows (c) the ground slides (d) Earth keeps spinning
12. 12.True or false: tissue paper is transparent. (a) False (b) True
13. 13.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) chalk to mark shadows (c) a battery cell (d) a straight stick
14. 14.⚖️ 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
15. 15.🔦 Which of these is transparent? (a) oily paper (b) tissue paper (c) clear glass (d) a brick
16. 16.True or false: yeast is not needed for the shadow clock. (a) True (b) False
17. 17.🧺 Do we need a battery cell for the shadow clock? (a) not needed (b) needed
18. 18.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) north (b) west (c) up (d) east
19. 19.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is the one thing we change? (a) the time of day (b) shadow length (c) the same spot (d) the stick kept upright
20. 20.🔦 Which of these is transparent? (a) clean water (b) a book (c) frosted glass (d) tissue paper
21. 21.🔍 Which is the odd one out? (a) butter paper (b) tissue paper (c) oily paper (d) clear glass
22. 22.🕰️ What is a sundial used for? (a) telling the time (b) measuring rain (c) making rainbows (d) weighing things
23. 23.🔦 Is clean water opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
24. 24.🔍 Which is the odd one out? (a) your hand (b) oily paper (c) a wooden board (d) a book
25. 25.True or false: a magnet is not needed for the shadow clock. (a) False (b) True
26. 26.True or false: butter paper is transparent. (a) False (b) True
27. 27.True or false: your hand is opaque. (a) False (b) True
28. 28.📘 Why does a shadow form? (a) the ground is dark (b) an object blocks light (c) light bends round it (d) the object is cold
29. 29.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) a straight stick (c) a mirror (d) a sunny open place
30. 30.⚖️ 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
31. 31.⚖️ 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
32. 32.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) turmeric powder (b) chalk to mark shadows (c) a sunny open place (d) a straight stick
33. 33.🧺 Do we need a clock to check for the shadow clock? (a) not needed (b) needed
34. 34.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is what we measure. (a) True (b) False
35. 35.🧺 Which of these is needed for the shadow clock? (a) chalk to mark shadows (b) a battery cell (c) turmeric powder (d) a magnet
36. 36.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a magnet (c) a clock to check (d) a sunny open place
37. 37.🧺 Do we need a straight stick for the shadow clock? (a) not needed (b) needed
38. 38.🔦 Which of these is translucent? (a) clean water (b) tissue paper (c) a steel plate (d) your hand
39. 39.🧺 Do we need a sunny open place for the shadow clock? (a) needed (b) not needed
40. 40.🔦 Is clear glass opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent

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