Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 386 · 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 of these is opaque? (a) clear glass (b) clean water (c) a brick (d) air
2. 2.🧺 Do we need yeast for the shadow clock? (a) needed (b) not needed
3. 3.🛟 While watching shadows outdoors, what must you never do? (a) mark with chalk (b) look straight at the Sun (c) wear a cap (d) sit in the shade
4. 4.📘 Why does a shadow form? (a) an object blocks light (b) light bends round it (c) the ground is dark (d) the object is cold
5. 5.🧺 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
6. 6.True or false: clean water is transparent. (a) False (b) True
7. 7.🧺 Which of these is needed for the shadow clock? (a) a straight stick (b) a battery cell (c) a balloon (d) a magnet
8. 8.True or false: a straight stick is needed for the shadow clock. (a) False (b) True
9. 9.🕰️ What is a sundial used for? (a) weighing things (b) measuring rain (c) telling the time (d) making rainbows
10. 10.🔍 Which is the odd one out? (a) clear plastic film (b) butter paper (c) frosted glass (d) tissue paper
11. 11.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) brighter (b) smaller (c) coloured (d) bigger
12. 12.⚖️ 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
13. 13.🛟 What should you wear for a long time in the hot sun? (a) a cap or hat (b) a raincoat (c) a woollen sweater (d) nothing on your head
14. 14.⚖️ 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
15. 15.True or false: a magnet is needed for the shadow clock. (a) True (b) False
16. 16.🧺 Which of these is needed for the shadow clock? (a) yeast (b) a battery cell (c) a sunny open place (d) a magnet
17. 17.🔦 Which of these is translucent? (a) air (b) clear plastic film (c) your hand (d) tissue paper
18. 18.⚖️ 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 stick kept upright
19. 19.🧺 Which of these is needed for the shadow clock? (a) a battery cell (b) a mirror (c) a magnet (d) chalk to mark shadows
20. 20.🔍 Which is the odd one out? (a) a book (b) a steel plate (c) your hand (d) butter paper
21. 21.True or false: chalk to mark shadows is not needed for the shadow clock. (a) False (b) True
22. 22.🧺 Do we need a magnet for the shadow clock? (a) needed (b) not needed
23. 23.⚖️ 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 measure it (c) we change it
24. 24.True or false: a steel plate is transparent. (a) False (b) True
25. 25.⚖️ 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) shadow length (d) the time of day
26. 26.⚖️ 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
27. 27.True or false: a sunny open place is not needed for the shadow clock. (a) True (b) False
28. 28.⚖️ 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
29. 29.⚖️ 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) True (b) False
30. 30.🔦 Is a wooden board opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
31. 31.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the time of day”? (a) we measure it (b) we change it (c) we keep it the same
32. 32.True or false: clear glass is transparent. (a) False (b) True
33. 33.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) a straight stick (c) a mirror (d) chalk to mark shadows
34. 34.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) round (b) short (c) long (d) missing
35. 35.🔮 Predict: on a fully cloudy day, the sundial ___. (a) works better (b) shows two times (c) does not work well (d) runs faster
36. 36.⚖️ 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
37. 37.🔦 Is a book opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
38. 38.🔦 Which of these is opaque? (a) butter paper (b) air (c) a steel plate (d) frosted glass
39. 39.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) north (b) up (c) west (d) east
40. 40.🔍 Which is the odd one out? (a) clear plastic film (b) air (c) a book (d) clear glass

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