Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 854 · 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) chalk to mark shadows (b) a clock to check (c) a straight stick (d) a balloon
2. 2.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) a straight stick (c) chalk to mark shadows (d) yeast
3. 3.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is the one thing we change? (a) the same spot (b) the time of day (c) shadow length (d) the same stick
4. 4.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) missing (b) short (c) round (d) long
5. 5.🛟 What should you wear for a long time in the hot sun? (a) a cap or hat (b) a raincoat (c) nothing on your head (d) a woollen sweater
6. 6.🔮 Predict: on a fully cloudy day, the sundial ___. (a) does not work well (b) runs faster (c) shows two times (d) works better
7. 7.⚖️ 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 keep it the same (c) we change it
8. 8.True or false: air is transparent. (a) True (b) False
9. 9.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) coloured (b) bigger (c) smaller (d) brighter
10. 10.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) up (b) north (c) west (d) east
11. 11.True or false: turmeric powder is needed for the shadow clock. (a) False (b) True
12. 12.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) a clock to check (c) a sunny open place (d) a balloon
13. 13.🔍 Which is the odd one out? (a) frosted glass (b) butter paper (c) tissue paper (d) a brick
14. 14.⚖️ 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) False (b) True
15. 15.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) turmeric powder (c) chalk to mark shadows (d) a straight stick
16. 16.True or false: a clock to check is not needed for the shadow clock. (a) False (b) True
17. 17.🔦 Which of these is opaque? (a) a brick (b) oily paper (c) frosted glass (d) tissue paper
18. 18.⚖️ 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) False (b) True
19. 19.🔍 Which is the odd one out? (a) tissue paper (b) a wooden board (c) butter paper (d) oily paper
20. 20.⚖️ 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
21. 21.True or false: chalk to mark shadows is needed for the shadow clock. (a) False (b) True
22. 22.🔦 Which of these is transparent? (a) tissue paper (b) a steel plate (c) clear plastic film (d) your hand
23. 23.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same spot is what we measure. (a) True (b) False
24. 24.🔦 Which of these is translucent? (a) butter paper (b) a steel plate (c) clean water (d) clear plastic film
25. 25.🧺 Which of these is needed for the shadow clock? (a) chalk to mark shadows (b) a magnet (c) a balloon (d) turmeric powder
26. 26.True or false: tissue paper is opaque. (a) True (b) False
27. 27.🔦 Which of these is transparent? (a) your hand (b) clear glass (c) a steel plate (d) a wooden board
28. 28.🔦 Is a brick opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
29. 29.🧺 Which of these is not needed for the shadow clock? (a) yeast (b) a clock to check (c) a straight stick (d) a sunny open place
30. 30.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a magnet (b) chalk to mark shadows (c) a sunny open place (d) a clock to check
31. 31.📘 Why does a shadow form? (a) the object is cold (b) light bends round it (c) the ground is dark (d) an object blocks light
32. 32.True or false: frosted glass is translucent. (a) True (b) False
33. 33.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a mirror (c) a straight stick (d) chalk to mark shadows
34. 34.⚖️ 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 stick kept upright (d) shadow length
35. 35.🔦 Which of these is opaque? (a) clear plastic film (b) clean water (c) a book (d) frosted glass
36. 36.🔦 Is oily paper opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
37. 37.🔦 Which of these is transparent? (a) a wooden board (b) clean water (c) butter paper (d) your hand
38. 38.🧺 Do we need a mirror for the shadow clock? (a) needed (b) not needed
39. 39.🧺 Do we need a battery cell for the shadow clock? (a) needed (b) not needed
40. 40.🧺 Do we need a sunny open place for the shadow clock? (a) needed (b) not needed

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