Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 410 · 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 glass (b) air (c) clear plastic film (d) a steel plate
2. 2.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) east (b) up (c) west (d) north
3. 3.⚖️ 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 spot (b) the same stick (c) the time of day (d) shadow length
4. 4.⚖️ 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
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 time of day (c) shadow length (d) the stick kept upright
6. 6.⚖️ 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 measure it (c) we keep it the same
7. 7.⚖️ 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 measure it (c) we keep it the same
8. 8.🧺 Which of these is not needed for the shadow clock? (a) a magnet (b) a straight stick (c) a sunny open place (d) chalk to mark shadows
9. 9.True or false: clear glass is opaque. (a) False (b) True
10. 10.🧺 Do we need a balloon for the shadow clock? (a) not needed (b) needed
11. 11.⚖️ 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
12. 12.📘 Why does a shadow form? (a) an object blocks light (b) the ground is dark (c) the object is cold (d) light bends round it
13. 13.True or false: a steel plate is opaque. (a) True (b) False
14. 14.🔍 Which is the odd one out? (a) frosted glass (b) tissue paper (c) oily paper (d) clear plastic film
15. 15.🌞 When is a stick’s shadow the shortest? (a) at night (b) late evening (c) early morning (d) around noon
16. 16.🧺 Do we need a mirror for the shadow clock? (a) not needed (b) needed
17. 17.True or false: a balloon is not needed for the shadow clock. (a) True (b) False
18. 18.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) short (b) long (c) missing (d) round
19. 19.🛟 What should you wear for a long time in the hot sun? (a) a raincoat (b) a cap or hat (c) nothing on your head (d) a woollen sweater
20. 20.⚖️ 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
21. 21.🔍 Which is the odd one out? (a) clear glass (b) clear plastic film (c) clean water (d) frosted glass
22. 22.🔦 Which of these is transparent? (a) oily paper (b) a steel plate (c) clean water (d) a wooden board
23. 23.🧺 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) chalk to mark shadows
24. 24.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) a balloon (c) a clock to check (d) chalk to mark shadows
25. 25.🔦 Which of these is opaque? (a) clear plastic film (b) clear glass (c) your hand (d) frosted glass
26. 26.True or false: a balloon is needed for the shadow clock. (a) True (b) False
27. 27.🔍 Which is the odd one out? (a) clear plastic film (b) clear glass (c) clean water (d) butter paper
28. 28.🛟 While watching shadows outdoors, what must you never do? (a) mark with chalk (b) wear a cap (c) sit in the shade (d) look straight at the Sun
29. 29.🔦 Is a wooden board opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
30. 30.🧺 Which of these is needed for the shadow clock? (a) a balloon (b) yeast (c) chalk to mark shadows (d) a battery cell
31. 31.🔍 Which is the odd one out? (a) your hand (b) a brick (c) a book (d) oily paper
32. 32.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same spot is what we measure. (a) True (b) False
33. 33.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is kept the same? (a) the stick kept upright (b) the time of day (c) shadow length
34. 34.🧺 Do we need a magnet for the shadow clock? (a) needed (b) not needed
35. 35.🧺 Do we need a straight stick for the shadow clock? (a) not needed (b) needed
36. 36.🔮 Predict: on a fully cloudy day, the sundial ___. (a) works better (b) shows two times (c) runs faster (d) does not work well
37. 37.🧺 Do we need chalk to mark shadows for the shadow clock? (a) not needed (b) needed
38. 38.🕰️ What is a sundial used for? (a) making rainbows (b) weighing things (c) measuring rain (d) telling the time
39. 39.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a battery cell (c) a sunny open place (d) a clock to check
40. 40.🌍 Why does the stick’s shadow move during the day? (a) Earth keeps spinning (b) the stick walks (c) the stick grows (d) the ground slides

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