Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 858 · 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) frosted glass (b) tissue paper (c) butter paper (d) a brick
2. 2.⚖️ 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
3. 3.🔍 Which is the odd one out? (a) oily paper (b) frosted glass (c) clear plastic film (d) tissue paper
4. 4.True or false: clean water is transparent. (a) True (b) False
5. 5.🌍 Why does the stick’s shadow move during the day? (a) the stick walks (b) the stick grows (c) Earth keeps spinning (d) the ground slides
6. 6.⚖️ 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 time of day (c) the same stick (d) the same spot
7. 7.🧺 Do we need yeast for the shadow clock? (a) needed (b) not needed
8. 8.🧺 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) yeast (d) a straight stick
9. 9.🛟 While watching shadows outdoors, what must you never do? (a) sit in the shade (b) mark with chalk (c) wear a cap (d) look straight at the Sun
10. 10.🧺 Which of these is needed for the shadow clock? (a) a mirror (b) yeast (c) a clock to check (d) a magnet
11. 11.🧺 Which of these is not needed for the shadow clock? (a) a clock to check (b) turmeric powder (c) a straight stick (d) chalk to mark shadows
12. 12.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: shadow length is kept the same. (a) True (b) False
13. 13.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) chalk to mark shadows (c) a straight stick (d) a magnet
14. 14.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is kept the same. (a) True (b) False
15. 15.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) east (b) west (c) up (d) north
16. 16.⚖️ 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 change it (c) we keep it the same
17. 17.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) the same stick (b) shadow length (c) the stick kept upright (d) the time of day
18. 18.🌞 When is a stick’s shadow the shortest? (a) around noon (b) at night (c) early morning (d) late evening
19. 19.True or false: chalk to mark shadows is needed for the shadow clock. (a) False (b) True
20. 20.True or false: frosted glass is translucent. (a) True (b) False
21. 21.⚖️ 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
22. 22.🧺 Which of these is needed for the shadow clock? (a) a battery cell (b) chalk to mark shadows (c) yeast (d) a magnet
23. 23.🔮 Predict: on a fully cloudy day, the sundial ___. (a) shows two times (b) works better (c) runs faster (d) does not work well
24. 24.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) short (b) long (c) missing (d) round
25. 25.🔦 Which of these is opaque? (a) tissue paper (b) clear plastic film (c) a book (d) oily paper
26. 26.True or false: turmeric powder is not needed for the shadow clock. (a) True (b) False
27. 27.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the time of day is kept the same. (a) True (b) False
28. 28.🧺 Do we need a clock to check for the shadow clock? (a) needed (b) not needed
29. 29.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) smaller (b) bigger (c) coloured (d) brighter
30. 30.🛟 What should you wear for a long time in the hot sun? (a) nothing on your head (b) a cap or hat (c) a woollen sweater (d) a raincoat
31. 31.True or false: air is transparent. (a) False (b) True
32. 32.True or false: a straight stick is not needed for the shadow clock. (a) False (b) True
33. 33.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) turmeric powder (c) a straight stick (d) chalk to mark shadows
34. 34.⚖️ 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) shadow length (c) the same stick
35. 35.🕰️ What is a sundial used for? (a) making rainbows (b) weighing things (c) telling the time (d) measuring rain
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) False (b) True
37. 37.🧺 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) a battery cell (d) chalk to mark shadows
38. 38.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) a magnet (c) a clock to check (d) chalk to mark shadows
39. 39.🔦 Which of these is opaque? (a) clean water (b) a brick (c) clear plastic film (d) oily paper
40. 40.🧺 Do we need a straight stick for the shadow clock? (a) needed (b) not needed

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