Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 576 · 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.🔍 Which is the odd one out? (a) clear plastic film (b) clean water (c) a wooden board (d) air
2. 2.⚖️ 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
3. 3.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) smaller (b) brighter (c) coloured (d) bigger
4. 4.🧺 Which of these is needed for the shadow clock? (a) a battery cell (b) yeast (c) a balloon (d) chalk to mark shadows
5. 5.⚖️ 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
6. 6.True or false: clean water is translucent. (a) True (b) False
7. 7.⚖️ 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 keep it the same (c) we measure it
8. 8.⚖️ 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 measure it (c) we change it
9. 9.🛟 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
10. 10.🔍 Which is the odd one out? (a) clear glass (b) butter paper (c) clean water (d) clear plastic film
11. 11.🛟 While watching shadows outdoors, what must you never do? (a) look straight at the Sun (b) wear a cap (c) sit in the shade (d) mark with chalk
12. 12.🔦 Which of these is opaque? (a) butter paper (b) frosted glass (c) oily paper (d) a wooden board
13. 13.🔮 Predict: on a fully cloudy day, the sundial ___. (a) does not work well (b) runs faster (c) works better (d) shows two times
14. 14.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same spot is the one thing we change. (a) True (b) False
15. 15.⚖️ 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 change it (c) we measure it
16. 16.🌍 Why does the stick’s shadow move during the day? (a) Earth keeps spinning (b) the ground slides (c) the stick walks (d) the stick grows
17. 17.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is the one thing we change. (a) False (b) True
18. 18.True or false: yeast is needed for the shadow clock. (a) True (b) False
19. 19.🔦 Which of these is transparent? (a) clean water (b) a wooden board (c) oily paper (d) a brick
20. 20.🔍 Which is the odd one out? (a) oily paper (b) butter paper (c) frosted glass (d) clear glass
21. 21.True or false: a sunny open place is needed for the shadow clock. (a) False (b) True
22. 22.True or false: air is transparent. (a) False (b) True
23. 23.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) a clock to check (c) chalk to mark shadows (d) a battery cell
24. 24.🧺 Do we need a magnet for the shadow clock? (a) not needed (b) needed
25. 25.True or false: butter paper is transparent. (a) True (b) False
26. 26.🧺 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) turmeric powder (d) a sunny open place
27. 27.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) a magnet (c) a straight stick (d) a clock to check
28. 28.⚖️ 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
29. 29.⚖️ 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
30. 30.🧺 Do we need turmeric powder for the shadow clock? (a) not needed (b) needed
31. 31.True or false: clean water is transparent. (a) False (b) True
32. 32.🔦 Which of these is transparent? (a) butter paper (b) a book (c) clear glass (d) a steel plate
33. 33.True or false: a battery cell is not needed for the shadow clock. (a) True (b) False
34. 34.⚖️ 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
35. 35.🔦 Is a brick opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
36. 36.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) chalk to mark shadows (c) a clock to check (d) yeast
37. 37.🔍 Which is the odd one out? (a) clean water (b) air (c) a book (d) clear glass
38. 38.True or false: a magnet is not needed for the shadow clock. (a) True (b) False
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 keep it the same (c) we measure it
40. 40.🔍 Which is the odd one out? (a) a brick (b) tissue paper (c) a steel plate (d) a wooden board

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