Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 877 · 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.🧺 Do we need a straight stick for the shadow clock? (a) needed (b) not needed
2. 2.🛟 What should you wear for a long time in the hot sun? (a) a cap or hat (b) nothing on your head (c) a woollen sweater (d) a raincoat
3. 3.🛟 While watching shadows outdoors, what must you never do? (a) look straight at the Sun (b) sit in the shade (c) mark with chalk (d) wear a cap
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 measure it (b) we keep it the same (c) we change it
5. 5.True or false: a battery cell is not needed for the shadow clock. (a) False (b) True
6. 6.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) turmeric powder (c) a sunny open place (d) a straight stick
7. 7.🧺 Which of these is needed for the shadow clock? (a) yeast (b) turmeric powder (c) a battery cell (d) a straight stick
8. 8.🧺 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) yeast
9. 9.🔦 Which of these is transparent? (a) a book (b) a wooden board (c) clean water (d) a steel plate
10. 10.True or false: a clock to check is needed for the shadow clock. (a) False (b) True
11. 11.🕰️ What is a sundial used for? (a) making rainbows (b) measuring rain (c) telling the time (d) weighing things
12. 12.True or false: a steel plate is transparent. (a) False (b) True
13. 13.🧺 Which of these is needed for the shadow clock? (a) a magnet (b) a mirror (c) a clock to check (d) yeast
14. 14.🧺 Do we need a balloon for the shadow clock? (a) not needed (b) needed
15. 15.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) coloured (b) bigger (c) brighter (d) smaller
16. 16.🔍 Which is the odd one out? (a) a steel plate (b) a brick (c) frosted glass (d) a book
17. 17.🔍 Which is the odd one out? (a) clean water (b) a wooden board (c) air (d) clear plastic film
18. 18.🌞 When is a stick’s shadow the shortest? (a) late evening (b) at night (c) early morning (d) around noon
19. 19.⚖️ 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) shadow length (c) the same spot (d) the same stick
20. 20.🔦 Which of these is translucent? (a) clear glass (b) a brick (c) air (d) butter paper
21. 21.⚖️ 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
22. 22.True or false: a balloon is not needed for the shadow clock. (a) False (b) True
23. 23.🔦 Which of these is opaque? (a) butter paper (b) frosted glass (c) tissue paper (d) a steel plate
24. 24.🧺 Do we need turmeric powder for the shadow clock? (a) not needed (b) needed
25. 25.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a straight stick (c) a battery cell (d) chalk to mark shadows
26. 26.🔍 Which is the odd one out? (a) butter paper (b) oily paper (c) frosted glass (d) clean water
27. 27.True or false: turmeric powder is not needed for the shadow clock. (a) False (b) True
28. 28.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “shadow length”? (a) we measure it (b) we change it (c) we keep it the same
29. 29.🔍 Which is the odd one out? (a) oily paper (b) butter paper (c) frosted glass (d) a book
30. 30.🧺 Do we need yeast for the shadow clock? (a) not needed (b) needed
31. 31.🔦 Which of these is transparent? (a) butter paper (b) frosted glass (c) a wooden board (d) clear plastic film
32. 32.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) a straight stick (c) a clock to check (d) a balloon
33. 33.⚖️ 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 time of day (c) shadow length (d) the same spot
34. 34.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a clock to check (c) chalk to mark shadows (d) a mirror
35. 35.True or false: a battery cell is needed for the shadow clock. (a) False (b) True
36. 36.🔦 Which of these is opaque? (a) clear glass (b) a brick (c) oily paper (d) clean water
37. 37.⚖️ 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
38. 38.⚖️ 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 keep it the same (c) we change it
39. 39.True or false: a straight stick is needed for the shadow clock. (a) True (b) False
40. 40.🧺 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 magnet (d) a clock to check

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