Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 68 · 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 “the stick kept upright”? (a) we measure it (b) we keep it the same (c) we change it
2. 2.True or false: a sunny open place is needed for the shadow clock. (a) True (b) False
3. 3.⚖️ 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) False (b) True
4. 4.⚖️ 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 change it (c) we measure it
5. 5.🌍 Why does the stick’s shadow move during the day? (a) the ground slides (b) the stick walks (c) Earth keeps spinning (d) the stick grows
6. 6.🕰️ What is a sundial used for? (a) making rainbows (b) measuring rain (c) weighing things (d) telling the time
7. 7.🔍 Which is the odd one out? (a) a brick (b) clear plastic film (c) clear glass (d) air
8. 8.🧺 Do we need a sunny open place for the shadow clock? (a) needed (b) not needed
9. 9.🛟 What should you wear for a long time in the hot sun? (a) nothing on your head (b) a raincoat (c) a woollen sweater (d) a cap or hat
10. 10.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) short (b) round (c) long (d) missing
11. 11.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) coloured (b) brighter (c) bigger (d) smaller
12. 12.🧺 Which of these is needed for the shadow clock? (a) a magnet (b) a balloon (c) a battery cell (d) a clock to check
13. 13.🔦 Which of these is opaque? (a) clear glass (b) frosted glass (c) butter paper (d) a wooden board
14. 14.True or false: a mirror is not needed for the shadow clock. (a) True (b) False
15. 15.True or false: a straight stick is needed for the shadow clock. (a) False (b) True
16. 16.🧺 Do we need chalk to mark shadows for the shadow clock? (a) not needed (b) needed
17. 17.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) west (b) east (c) up (d) north
18. 18.True or false: a magnet is needed for the shadow clock. (a) True (b) False
19. 19.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a sunny open place (c) a balloon (d) chalk to mark shadows
20. 20.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) a sunny open place (c) yeast (d) chalk to mark shadows
21. 21.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same spot”? (a) we keep it the same (b) we measure it (c) we change it
22. 22.🔮 Predict: on a fully cloudy day, the sundial ___. (a) works better (b) shows two times (c) runs faster (d) does not work well
23. 23.True or false: a battery cell is not needed for the shadow clock. (a) True (b) False
24. 24.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) a straight stick (c) a sunny open place (d) turmeric powder
25. 25.🔦 Is your hand opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
26. 26.🔦 Which of these is translucent? (a) oily paper (b) a brick (c) a steel plate (d) a wooden board
27. 27.🧺 Which of these is needed for the shadow clock? (a) a mirror (b) a sunny open place (c) yeast (d) a magnet
28. 28.⚖️ 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 time of day (d) shadow length
29. 29.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) a straight stick (c) a sunny open place (d) a battery cell
30. 30.⚖️ 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) the same stick (c) shadow length
31. 31.🔍 Which is the odd one out? (a) your hand (b) a wooden board (c) air (d) a book
32. 32.⚖️ 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
33. 33.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the stick kept upright is the one thing we change. (a) False (b) True
34. 34.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) a straight stick (c) a clock to check (d) yeast
35. 35.🔦 Which of these is transparent? (a) your hand (b) frosted glass (c) clear glass (d) a wooden board
36. 36.⚖️ 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
37. 37.🔦 Is clear plastic film opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
38. 38.🔍 Which is the odd one out? (a) a book (b) clear plastic film (c) clear glass (d) air
39. 39.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) chalk to mark shadows (c) a sunny open place (d) a magnet
40. 40.🔍 Which is the odd one out? (a) clear glass (b) a steel plate (c) clear plastic film (d) clean water

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