Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 330 · 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) tissue paper (b) butter paper (c) a book (d) oily paper
2. 2.🌞 When is a stick’s shadow the shortest? (a) late evening (b) at night (c) around noon (d) early morning
3. 3.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is the one thing we change? (a) the time of day (b) the same stick (c) the same spot (d) the stick kept upright
4. 4.True or false: chalk to mark shadows is needed for the shadow clock. (a) False (b) True
5. 5.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) round (b) long (c) missing (d) short
6. 6.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) bigger (b) coloured (c) brighter (d) smaller
7. 7.⚖️ 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
8. 8.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) the time of day (b) the same spot (c) shadow length (d) the stick kept upright
9. 9.🧺 Which of these is needed for the shadow clock? (a) turmeric powder (b) yeast (c) a magnet (d) a sunny open place
10. 10.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a sunny open place (c) chalk to mark shadows (d) yeast
11. 11.True or false: a wooden board is transparent. (a) False (b) True
12. 12.🔮 Predict: on a fully cloudy day, the sundial ___. (a) shows two times (b) runs faster (c) works better (d) does not work well
13. 13.True or false: yeast is needed for the shadow clock. (a) True (b) False
14. 14.🧺 Which of these is not needed for the shadow clock? (a) a mirror (b) a sunny open place (c) chalk to mark shadows (d) a straight stick
15. 15.⚖️ 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 stick kept upright (c) the time of day
16. 16.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) up (b) west (c) east (d) north
17. 17.🔍 Which is the odd one out? (a) a steel plate (b) oily paper (c) butter paper (d) tissue paper
18. 18.🔦 Which of these is transparent? (a) tissue paper (b) clean water (c) a wooden board (d) a book
19. 19.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same spot is kept the same. (a) False (b) True
20. 20.🔦 Which of these is opaque? (a) tissue paper (b) clear glass (c) clear plastic film (d) a wooden board
21. 21.🧺 Do we need a battery cell for the shadow clock? (a) not needed (b) needed
22. 22.⚖️ 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
23. 23.🧺 Do we need a balloon for the shadow clock? (a) not needed (b) needed
24. 24.📘 Why does a shadow form? (a) an object blocks light (b) the object is cold (c) light bends round it (d) the ground is dark
25. 25.🧺 Which of these is not needed for the shadow clock? (a) a clock to check (b) a straight stick (c) a sunny open place (d) a magnet
26. 26.⚖️ 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 change it (c) we keep it the same
27. 27.🛟 What should you wear for a long time in the hot sun? (a) a raincoat (b) nothing on your head (c) a cap or hat (d) a woollen sweater
28. 28.True or false: air is transparent. (a) True (b) False
29. 29.True or false: a sunny open place is needed for the shadow clock. (a) False (b) True
30. 30.True or false: oily paper is transparent. (a) False (b) True
31. 31.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the stick kept upright”? (a) we keep it the same (b) we change it (c) we measure it
32. 32.🌍 Why does the stick’s shadow move during the day? (a) the stick grows (b) the ground slides (c) Earth keeps spinning (d) the stick walks
33. 33.True or false: a mirror is not needed for the shadow clock. (a) True (b) False
34. 34.🔍 Which is the odd one out? (a) butter paper (b) clear glass (c) frosted glass (d) tissue paper
35. 35.🧺 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 sunny open place (d) a balloon
36. 36.⚖️ 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
37. 37.True or false: your hand is transparent. (a) False (b) True
38. 38.True or false: butter paper is opaque. (a) False (b) True
39. 39.🔍 Which is the odd one out? (a) clean water (b) a brick (c) air (d) clear glass
40. 40.🕰️ What is a sundial used for? (a) telling the time (b) weighing things (c) making rainbows (d) measuring rain

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