Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 401 · 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.🌞 When is a stick’s shadow the shortest? (a) at night (b) early morning (c) around noon (d) late evening
2. 2.🧺 Do we need yeast for the shadow clock? (a) needed (b) not needed
3. 3.🔍 Which is the odd one out? (a) a steel plate (b) a wooden board (c) clear plastic film (d) your hand
4. 4.🧺 Do we need a sunny open place for the shadow clock? (a) needed (b) not needed
5. 5.True or false: a mirror is not needed for the shadow clock. (a) False (b) True
6. 6.⚖️ 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
7. 7.🛟 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
8. 8.⚖️ 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
9. 9.⚖️ 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 stick (b) the same spot (c) the time of day (d) the stick kept upright
10. 10.🧺 Do we need turmeric powder for the shadow clock? (a) needed (b) not needed
11. 11.⚖️ 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
12. 12.🛟 While watching shadows outdoors, what must you never do? (a) sit in the shade (b) look straight at the Sun (c) mark with chalk (d) wear a cap
13. 13.🔦 Which of these is transparent? (a) a steel plate (b) clear glass (c) a wooden board (d) a book
14. 14.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) the stick kept upright (b) the same spot (c) the time of day (d) shadow length
15. 15.🔍 Which is the odd one out? (a) butter paper (b) clean water (c) clear glass (d) clear plastic film
16. 16.🔍 Which is the odd one out? (a) butter paper (b) tissue paper (c) a steel plate (d) frosted glass
17. 17.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: shadow length is the one thing we change. (a) False (b) True
18. 18.True or false: a magnet is needed for the shadow clock. (a) False (b) True
19. 19.🧺 Do we need chalk to mark shadows for the shadow clock? (a) not needed (b) needed
20. 20.🧺 Do we need a battery cell for the shadow clock? (a) needed (b) not needed
21. 21.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) a magnet (c) a straight stick (d) a clock to check
22. 22.🔦 Which of these is transparent? (a) clean water (b) oily paper (c) a book (d) a wooden board
23. 23.🔦 Which of these is translucent? (a) a wooden board (b) butter paper (c) clear glass (d) clean water
24. 24.True or false: a sunny open place is not needed for the shadow clock. (a) False (b) True
25. 25.🔦 Which of these is opaque? (a) frosted glass (b) oily paper (c) your hand (d) air
26. 26.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) smaller (b) coloured (c) brighter (d) bigger
27. 27.🧺 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 battery cell (d) a clock to check
28. 28.True or false: a sunny open place is needed for the shadow clock. (a) False (b) True
29. 29.🔮 Predict: on a fully cloudy day, the sundial ___. (a) runs faster (b) works better (c) does not work well (d) shows two times
30. 30.⚖️ 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 stick kept upright
31. 31.🧺 Do we need a straight stick for the shadow clock? (a) not needed (b) needed
32. 32.🔍 Which is the odd one out? (a) tissue paper (b) air (c) oily paper (d) frosted glass
33. 33.🔍 Which is the odd one out? (a) clear glass (b) a steel plate (c) a book (d) a brick
34. 34.⚖️ 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
35. 35.⚖️ 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
36. 36.⚖️ 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
37. 37.🧺 Which of these is needed for the shadow clock? (a) a magnet (b) turmeric powder (c) yeast (d) a clock to check
38. 38.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is what we measure. (a) True (b) False
39. 39.True or false: chalk to mark shadows is needed for the shadow clock. (a) True (b) False
40. 40.True or false: turmeric powder is not needed for the shadow clock. (a) False (b) True

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