Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 972 · 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? What do we do with “shadow length”? (a) we keep it the same (b) we change it (c) we measure it
2. 2.🧺 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) turmeric powder (d) a clock to check
3. 3.True or false: a balloon is needed for the shadow clock. (a) False (b) True
4. 4.🔦 Is your hand opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
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) the same spot (d) shadow length
6. 6.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a sunny open place (c) chalk to mark shadows (d) a magnet
7. 7.⚖️ 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
8. 8.True or false: a brick is translucent. (a) True (b) False
9. 9.🛟 What should you wear for a long time in the hot sun? (a) a raincoat (b) nothing on your head (c) a woollen sweater (d) a cap or hat
10. 10.⚖️ 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
11. 11.🛟 While watching shadows outdoors, what must you never do? (a) mark with chalk (b) sit in the shade (c) wear a cap (d) look straight at the Sun
12. 12.🧺 Do we need a straight stick for the shadow clock? (a) needed (b) not needed
13. 13.True or false: a brick is opaque. (a) False (b) True
14. 14.🔍 Which is the odd one out? (a) clear glass (b) oily paper (c) frosted glass (d) butter paper
15. 15.🌍 Why does the stick’s shadow move during the day? (a) the stick grows (b) Earth keeps spinning (c) the stick walks (d) the ground slides
16. 16.🧺 Which of these is not needed for the shadow clock? (a) a clock to check (b) turmeric powder (c) a sunny open place (d) chalk to mark shadows
17. 17.⚖️ 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 keep it the same (c) we change it
18. 18.📘 Why does a shadow form? (a) light bends round it (b) an object blocks light (c) the object is cold (d) the ground is dark
19. 19.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is kept the same? (a) the time of day (b) shadow length (c) the same spot
20. 20.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) short (b) missing (c) round (d) long
21. 21.⚖️ 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 measure it (c) we change it
22. 22.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) a straight stick (c) yeast (d) a clock to check
23. 23.🔍 Which is the odd one out? (a) air (b) clear plastic film (c) clean water (d) a steel plate
24. 24.⚖️ 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 keep it the same (c) we change it
25. 25.🕰️ What is a sundial used for? (a) measuring rain (b) weighing things (c) telling the time (d) making rainbows
26. 26.⚖️ 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 stick (c) the same spot (d) the time of day
27. 27.True or false: a clock to check is not needed for the shadow clock. (a) False (b) True
28. 28.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) up (b) east (c) west (d) north
29. 29.🔦 Which of these is opaque? (a) air (b) a book (c) clean water (d) frosted glass
30. 30.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) a battery cell (c) chalk to mark shadows (d) a straight stick
31. 31.🔍 Which is the odd one out? (a) a steel plate (b) a wooden board (c) a brick (d) clear plastic film
32. 32.🔍 Which is the odd one out? (a) a brick (b) a steel plate (c) a wooden board (d) frosted glass
33. 33.🔍 Which is the odd one out? (a) butter paper (b) frosted glass (c) oily paper (d) air
34. 34.True or false: turmeric powder is not needed for the shadow clock. (a) False (b) True
35. 35.🔦 Is clean water opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
36. 36.True or false: oily paper is transparent. (a) False (b) True
37. 37.🔍 Which is the odd one out? (a) a book (b) a wooden board (c) butter paper (d) a brick
38. 38.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is kept the same? (a) the time of day (b) shadow length (c) the same stick
39. 39.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) a sunny open place (c) a clock to check (d) a mirror
40. 40.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the time of day is what we measure. (a) True (b) False

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