Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 578 · 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.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) yeast (c) a straight stick (d) a sunny open place
2. 2.True or false: a clock to check is not needed for the shadow clock. (a) True (b) False
3. 3.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) a balloon (c) a straight stick (d) a sunny open place
4. 4.⚖️ 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) shadow length (c) the stick kept upright (d) the same spot
5. 5.🔍 Which is the odd one out? (a) air (b) clean water (c) clear glass (d) a steel plate
6. 6.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) long (b) missing (c) round (d) short
7. 7.🧺 Do we need a sunny open place for the shadow clock? (a) not needed (b) needed
8. 8.🛟 While watching shadows outdoors, what must you never do? (a) wear a cap (b) mark with chalk (c) sit in the shade (d) look straight at the Sun
9. 9.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) a clock to check (c) a mirror (d) a straight stick
10. 10.🔦 Which of these is opaque? (a) your hand (b) air (c) frosted glass (d) clear glass
11. 11.⚖️ 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) True (b) False
12. 12.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) east (b) up (c) north (d) west
13. 13.🔦 Is a book opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
14. 14.⚖️ 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 time of day (d) the same spot
15. 15.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) smaller (b) coloured (c) bigger (d) brighter
16. 16.🔦 Which of these is translucent? (a) clean water (b) tissue paper (c) air (d) a wooden board
17. 17.⚖️ 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 measure it (c) we keep it the same
18. 18.True or false: yeast is needed for the shadow clock. (a) False (b) True
19. 19.🔦 Is a steel plate opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
20. 20.True or false: a balloon is needed for the shadow clock. (a) False (b) True
21. 21.🛟 What should you wear for a long time in the hot sun? (a) nothing on your head (b) a woollen sweater (c) a raincoat (d) a cap or hat
22. 22.🔦 Is air opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
23. 23.🔦 Which of these is transparent? (a) your hand (b) oily paper (c) clear glass (d) a wooden board
24. 24.True or false: yeast is not needed for the shadow clock. (a) True (b) False
25. 25.⚖️ 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
26. 26.⚖️ 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) False (b) True
27. 27.True or false: a mirror is needed for the shadow clock. (a) False (b) True
28. 28.True or false: your hand is translucent. (a) True (b) False
29. 29.⚖️ 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
30. 30.🌍 Why does the stick’s shadow move during the day? (a) the stick walks (b) the ground slides (c) the stick grows (d) Earth keeps spinning
31. 31.⚖️ 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
32. 32.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) turmeric powder (c) a straight stick (d) a sunny open place
33. 33.🕰️ What is a sundial used for? (a) weighing things (b) making rainbows (c) measuring rain (d) telling the time
34. 34.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a balloon (b) a straight stick (c) a clock to check (d) a sunny open place
35. 35.True or false: tissue paper is translucent. (a) True (b) False
36. 36.🧺 Which of these is not needed for the shadow clock? (a) a magnet (b) a straight stick (c) a sunny open place (d) chalk to mark shadows
37. 37.🧺 Do we need a balloon for the shadow clock? (a) needed (b) not needed
38. 38.🔦 Which of these is transparent? (a) butter paper (b) clear plastic film (c) a wooden board (d) frosted glass
39. 39.🧺 Which of these is not needed for the shadow clock? (a) turmeric powder (b) a straight stick (c) a sunny open place (d) chalk to mark shadows
40. 40.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: shadow length is what we measure. (a) True (b) False

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