Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 758 · 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? Which of these is kept the same? (a) shadow length (b) the same stick (c) the time of day
2. 2.⚖️ 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
3. 3.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) short (b) long (c) round (d) missing
4. 4.📘 Why does a shadow form? (a) light bends round it (b) the ground is dark (c) the object is cold (d) an object blocks light
5. 5.⚖️ 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
6. 6.🔍 Which is the odd one out? (a) a wooden board (b) air (c) clear plastic film (d) clean water
7. 7.True or false: a clock to check is needed for the shadow clock. (a) False (b) True
8. 8.🔍 Which is the odd one out? (a) a steel plate (b) a wooden board (c) clean water (d) a brick
9. 9.🔦 Which of these is translucent? (a) a wooden board (b) air (c) frosted glass (d) clear glass
10. 10.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) the same spot (b) the same stick (c) shadow length (d) the time of day
11. 11.🔦 Which of these is transparent? (a) oily paper (b) frosted glass (c) tissue paper (d) air
12. 12.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) brighter (b) bigger (c) smaller (d) coloured
13. 13.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: shadow length is what we measure. (a) False (b) True
14. 14.🧺 Do we need a balloon for the shadow clock? (a) not needed (b) needed
15. 15.⚖️ 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 stick kept upright (c) the time of day (d) the same stick
16. 16.🔍 Which is the odd one out? (a) clear glass (b) clean water (c) clear plastic film (d) your hand
17. 17.⚖️ 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
18. 18.True or false: a sunny open place is not needed for the shadow clock. (a) False (b) True
19. 19.🔦 Is a brick opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
20. 20.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) chalk to mark shadows (c) a sunny open place (d) a mirror
21. 21.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a battery cell (c) a sunny open place (d) a clock to check
22. 22.🌍 Why does the stick’s shadow move during the day? (a) the stick grows (b) the ground slides (c) the stick walks (d) Earth keeps spinning
23. 23.True or false: oily paper is opaque. (a) True (b) False
24. 24.🔦 Which of these is transparent? (a) oily paper (b) clear plastic film (c) a book (d) a wooden board
25. 25.True or false: clear plastic film is translucent. (a) False (b) True
26. 26.🔍 Which is the odd one out? (a) a wooden board (b) a steel plate (c) butter paper (d) a book
27. 27.🔍 Which is the odd one out? (a) clear glass (b) a steel plate (c) a wooden board (d) a brick
28. 28.⚖️ 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
29. 29.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) yeast (b) chalk to mark shadows (c) a clock to check (d) a straight stick
30. 30.🧺 Which of these is not needed for the shadow clock? (a) a clock to check (b) a magnet (c) a straight stick (d) a sunny open place
31. 31.🧺 Do we need turmeric powder for the shadow clock? (a) not needed (b) needed
32. 32.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) chalk to mark shadows (c) a straight stick (d) turmeric powder
33. 33.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same spot is what we measure. (a) False (b) True
34. 34.🧺 Which of these is not needed for the shadow clock? (a) a balloon (b) a straight stick (c) a sunny open place (d) chalk to mark shadows
35. 35.⚖️ 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 spot
36. 36.🔍 Which is the odd one out? (a) a book (b) a wooden board (c) air (d) your hand
37. 37.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is kept the same? (a) the stick kept upright (b) shadow length (c) the time of day
38. 38.⚖️ 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
39. 39.🧺 Which of these is needed for the shadow clock? (a) a magnet (b) a mirror (c) a clock to check (d) yeast
40. 40.True or false: a sunny open place is needed for the shadow clock. (a) False (b) True

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