Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 245 · 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 turmeric powder for the shadow clock? (a) needed (b) not needed
2. 2.🧺 Do we need a balloon for the shadow clock? (a) not needed (b) needed
3. 3.🛟 While watching shadows outdoors, what must you never do? (a) mark with chalk (b) wear a cap (c) look straight at the Sun (d) sit in the shade
4. 4.🔦 Which of these is opaque? (a) air (b) butter paper (c) your hand (d) frosted glass
5. 5.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a straight stick (c) a sunny open place (d) turmeric powder
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 keep it the same (c) we measure it
7. 7.⚖️ 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
8. 8.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) up (b) north (c) east (d) west
9. 9.🔦 Is butter paper opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
10. 10.🧺 Which of these is needed for the shadow clock? (a) a magnet (b) a mirror (c) a battery cell (d) chalk to mark shadows
11. 11.⚖️ 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
12. 12.🧺 Do we need a mirror for the shadow clock? (a) needed (b) not needed
13. 13.🌍 Why does the stick’s shadow move during the day? (a) the stick walks (b) the stick grows (c) the ground slides (d) Earth keeps spinning
14. 14.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) smaller (b) brighter (c) coloured (d) bigger
15. 15.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) missing (b) long (c) short (d) round
16. 16.🔦 Is frosted glass opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
17. 17.🔦 Which of these is translucent? (a) frosted glass (b) your hand (c) a book (d) a brick
18. 18.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) the stick kept upright (b) shadow length (c) the same stick (d) the same spot
19. 19.🔦 Which of these is transparent? (a) your hand (b) frosted glass (c) a wooden board (d) clear glass
20. 20.🛟 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
21. 21.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is the one thing we change? (a) shadow length (b) the same spot (c) the stick kept upright (d) the time of day
22. 22.True or false: a balloon is not needed for the shadow clock. (a) False (b) True
23. 23.🔦 Which of these is translucent? (a) a brick (b) clear plastic film (c) oily paper (d) clear glass
24. 24.🔦 Which of these is translucent? (a) clean water (b) a book (c) your hand (d) butter paper
25. 25.⚖️ 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 measure it (c) we keep it the same
26. 26.🕰️ What is a sundial used for? (a) telling the time (b) weighing things (c) measuring rain (d) making rainbows
27. 27.⚖️ 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
28. 28.🧺 Do we need a clock to check for the shadow clock? (a) needed (b) not needed
29. 29.🧺 Do we need a sunny open place for the shadow clock? (a) needed (b) not needed
30. 30.True or false: a mirror is needed for the shadow clock. (a) True (b) False
31. 31.🧺 Do we need a battery cell for the shadow clock? (a) needed (b) not needed
32. 32.🧺 Which of these is needed for the shadow clock? (a) a sunny open place (b) yeast (c) a magnet (d) a balloon
33. 33.🧺 Do we need chalk to mark shadows for the shadow clock? (a) not needed (b) needed
34. 34.🔦 Is a steel plate opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
35. 35.🔦 Is a book opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
36. 36.True or false: turmeric powder is not needed for the shadow clock. (a) True (b) False
37. 37.True or false: a balloon is needed for the shadow clock. (a) True (b) False
38. 38.True or false: clear glass is transparent. (a) False (b) True
39. 39.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “shadow length”? (a) we change it (b) we measure it (c) we keep it the same
40. 40.🧺 Which of these is needed for the shadow clock? (a) a battery cell (b) a clock to check (c) a balloon (d) yeast

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