Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 19 · 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.🧺 Do we need chalk to mark shadows for the shadow clock? (a) not needed (b) needed
2. 2.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) chalk to mark shadows (c) a clock to check (d) a magnet
3. 3.True or false: a sunny open place is not needed for the shadow clock. (a) True (b) False
4. 4.🧺 Do we need a mirror for the shadow clock? (a) not needed (b) needed
5. 5.⚖️ 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 same stick (c) shadow length (d) the same spot
6. 6.🛟 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
7. 7.⚖️ 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) shadow length (c) the time of day
8. 8.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a balloon (b) a sunny open place (c) a clock to check (d) chalk to mark shadows
9. 9.True or false: air is opaque. (a) True (b) False
10. 10.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) long (b) short (c) round (d) missing
11. 11.🔍 Which is the odd one out? (a) a wooden board (b) a book (c) oily paper (d) a brick
12. 12.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) chalk to mark shadows (c) a battery cell (d) a straight stick
13. 13.🧺 Do we need a sunny open place for the shadow clock? (a) not needed (b) needed
14. 14.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) east (b) up (c) north (d) west
15. 15.🧺 Which of these is needed for the shadow clock? (a) a magnet (b) a clock to check (c) a balloon (d) turmeric powder
16. 16.True or false: turmeric powder is not needed for the shadow clock. (a) True (b) False
17. 17.⚖️ 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 spot (c) the time of day (d) shadow length
18. 18.🔍 Which is the odd one out? (a) a wooden board (b) a brick (c) a book (d) clear glass
19. 19.True or false: a straight stick is needed for the shadow clock. (a) False (b) True
20. 20.🔍 Which is the odd one out? (a) a book (b) air (c) clear glass (d) clean water
21. 21.🌍 Why does the stick’s shadow move during the day? (a) the stick grows (b) the stick walks (c) the ground slides (d) Earth keeps spinning
22. 22.📘 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
23. 23.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) turmeric powder (b) a sunny open place (c) a straight stick (d) chalk to mark shadows
24. 24.🔍 Which is the odd one out? (a) a wooden board (b) air (c) a book (d) your hand
25. 25.🛟 What should you wear for a long time in the hot sun? (a) a raincoat (b) nothing on your head (c) a cap or hat (d) a woollen sweater
26. 26.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a sunny open place (c) yeast (d) chalk to mark shadows
27. 27.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a magnet (b) a clock to check (c) a sunny open place (d) a straight stick
28. 28.True or false: a mirror is not needed for the shadow clock. (a) False (b) True
29. 29.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a mirror (b) chalk to mark shadows (c) a clock to check (d) a sunny open place
30. 30.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same spot is the one thing we change. (a) True (b) False
31. 31.🧺 Do we need a balloon for the shadow clock? (a) needed (b) not needed
32. 32.🕰️ What is a sundial used for? (a) weighing things (b) making rainbows (c) measuring rain (d) telling the time
33. 33.True or false: a battery cell is not needed for the shadow clock. (a) False (b) True
34. 34.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same spot”? (a) we measure it (b) we change it (c) we keep it the same
35. 35.⚖️ 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
36. 36.⚖️ 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 keep it the same (c) we measure it
37. 37.🔮 Predict: on a fully cloudy day, the sundial ___. (a) runs faster (b) does not work well (c) works better (d) shows two times
38. 38.🔍 Which is the odd one out? (a) a brick (b) butter paper (c) frosted glass (d) tissue paper
39. 39.🔍 Which is the odd one out? (a) your hand (b) frosted glass (c) a wooden board (d) a steel plate
40. 40.🌞 When is a stick’s shadow the shortest? (a) late evening (b) around noon (c) early morning (d) at night

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