Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 874 · 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.🌍 Why does the stick’s shadow move during the day? (a) the stick walks (b) Earth keeps spinning (c) the ground slides (d) the stick grows
2. 2.⚖️ 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) True (b) False
3. 3.True or false: a clock to check is needed for the shadow clock. (a) True (b) False
4. 4.🔍 Which is the odd one out? (a) a steel plate (b) butter paper (c) oily paper (d) frosted glass
5. 5.True or false: air is translucent. (a) False (b) True
6. 6.🔮 Predict: on a fully cloudy day, the sundial ___. (a) shows two times (b) does not work well (c) works better (d) runs faster
7. 7.🔍 Which is the odd one out? (a) clear plastic film (b) butter paper (c) tissue paper (d) frosted glass
8. 8.True or false: a straight stick is not needed for the shadow clock. (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 spot (b) the same stick (c) the time of day (d) the stick kept upright
10. 10.🔦 Which of these is translucent? (a) a wooden board (b) your hand (c) a book (d) butter paper
11. 11.🧺 Do we need yeast for the shadow clock? (a) needed (b) not needed
12. 12.🔍 Which is the odd one out? (a) your hand (b) a steel plate (c) clear glass (d) a book
13. 13.⚖️ 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
14. 14.🧺 Do we need chalk to mark shadows for the shadow clock? (a) needed (b) not needed
15. 15.🧺 Which of these is not needed for the shadow clock? (a) a magnet (b) a sunny open place (c) a straight stick (d) a clock to check
16. 16.⚖️ 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 keep it the same (c) we change it
17. 17.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) shadow length (b) the time of day (c) the same stick (d) the same spot
18. 18.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a balloon (b) chalk to mark shadows (c) a sunny open place (d) a straight stick
19. 19.🔦 Is a brick opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
20. 20.🔦 Is a wooden board opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
21. 21.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) bigger (b) brighter (c) smaller (d) coloured
22. 22.🔍 Which is the odd one out? (a) clean water (b) butter paper (c) oily paper (d) frosted glass
23. 23.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same stick”? (a) we keep it the same (b) we change it (c) we measure it
24. 24.⚖️ 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
25. 25.📘 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
26. 26.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) yeast (b) a clock to check (c) a sunny open place (d) a straight stick
27. 27.⚖️ 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
28. 28.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) round (b) long (c) short (d) missing
29. 29.🧺 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 mirror (d) a clock to check
30. 30.⚖️ 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
31. 31.True or false: a balloon is needed for the shadow clock. (a) True (b) False
32. 32.🔦 Is oily paper opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
33. 33.True or false: a steel plate is transparent. (a) False (b) True
34. 34.True or false: tissue paper is transparent. (a) True (b) False
35. 35.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same spot”? (a) we measure it (b) we keep it the same (c) we change it
36. 36.⚖️ 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
37. 37.🛟 What should you wear for a long time in the hot sun? (a) nothing on your head (b) a cap or hat (c) a raincoat (d) a woollen sweater
38. 38.True or false: a clock to check is not needed for the shadow clock. (a) True (b) False
39. 39.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) west (b) east (c) up (d) north
40. 40.🔍 Which is the odd one out? (a) a wooden board (b) your hand (c) butter paper (d) a book

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