Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 507 · 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 needed for the shadow clock? (a) a battery cell (b) chalk to mark shadows (c) a balloon (d) a magnet
2. 2.🧺 Which of these is not needed for the shadow clock? (a) a balloon (b) chalk to mark shadows (c) a clock to check (d) a sunny open place
3. 3.🔍 Which is the odd one out? (a) a wooden board (b) a brick (c) air (d) a steel plate
4. 4.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) round (b) short (c) missing (d) long
5. 5.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a sunny open place (c) a clock to check (d) a balloon
6. 6.🔦 Which of these is translucent? (a) a wooden board (b) clear glass (c) frosted glass (d) air
7. 7.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is kept the same. (a) True (b) False
8. 8.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) north (b) up (c) east (d) west
9. 9.📘 Why does a shadow form? (a) an object blocks light (b) the object is cold (c) light bends round it (d) the ground is dark
10. 10.🔦 Which of these is transparent? (a) clean water (b) a book (c) a brick (d) your hand
11. 11.🧺 Do we need a sunny open place for the shadow clock? (a) needed (b) not needed
12. 12.🔦 Which of these is transparent? (a) butter paper (b) air (c) a book (d) a brick
13. 13.🛟 While watching shadows outdoors, what must you never do? (a) mark with chalk (b) look straight at the Sun (c) sit in the shade (d) wear a cap
14. 14.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) smaller (b) bigger (c) coloured (d) brighter
15. 15.🔦 Is your hand opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
16. 16.🔦 Is a brick opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
17. 17.🧺 Which of these is needed for the shadow clock? (a) a magnet (b) a straight stick (c) turmeric powder (d) a balloon
18. 18.🧺 Which of these is not needed for the shadow clock? (a) a clock to check (b) a sunny open place (c) chalk to mark shadows (d) a magnet
19. 19.True or false: yeast is needed for the shadow clock. (a) True (b) False
20. 20.🔮 Predict: on a fully cloudy day, the sundial ___. (a) runs faster (b) works better (c) shows two times (d) does not work well
21. 21.True or false: your hand is transparent. (a) False (b) True
22. 22.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) a mirror (c) a sunny open place (d) a clock to check
23. 23.True or false: oily paper is opaque. (a) False (b) True
24. 24.🧺 Do we need turmeric powder for the shadow clock? (a) not needed (b) needed
25. 25.⚖️ 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
26. 26.🔦 Is a wooden board opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
27. 27.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the time of day”? (a) we keep it the same (b) we change it (c) we measure it
28. 28.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is the one thing we change. (a) True (b) False
29. 29.🧺 Do we need a battery cell for the shadow clock? (a) needed (b) not needed
30. 30.🔦 Which of these is opaque? (a) a wooden board (b) oily paper (c) clear plastic film (d) tissue paper
31. 31.🔍 Which is the odd one out? (a) frosted glass (b) butter paper (c) a brick (d) oily paper
32. 32.True or false: a battery cell is not needed for the shadow clock. (a) False (b) True
33. 33.True or false: chalk to mark shadows is not needed for the shadow clock. (a) False (b) True
34. 34.🕰️ What is a sundial used for? (a) measuring rain (b) weighing things (c) making rainbows (d) telling the time
35. 35.🛟 What should you wear for a long time in the hot sun? (a) a woollen sweater (b) a raincoat (c) nothing on your head (d) a cap or hat
36. 36.⚖️ 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) shadow length (c) the same spot (d) the time of day
37. 37.True or false: chalk to mark shadows is needed for the shadow clock. (a) True (b) False
38. 38.⚖️ 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 same stick (c) the time of day
39. 39.⚖️ 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
40. 40.🧺 Which of these is not needed for the shadow clock? (a) a battery cell (b) chalk to mark shadows (c) a straight stick (d) a sunny open place

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