Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 701 · 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.🔮 Predict: on a fully cloudy day, the sundial ___. (a) runs faster (b) does not work well (c) works better (d) shows two times
2. 2.🔍 Which is the odd one out? (a) butter paper (b) clean water (c) oily paper (d) tissue paper
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 stick kept upright (b) shadow length (c) the time of day (d) the same stick
4. 4.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) a straight stick (c) a sunny open place (d) a magnet
5. 5.🧺 Do we need turmeric powder for the shadow clock? (a) needed (b) not needed
6. 6.🧺 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 magnet (d) a sunny open place
7. 7.True or false: a magnet is needed for the shadow clock. (a) False (b) True
8. 8.True or false: oily paper is transparent. (a) True (b) False
9. 9.True or false: a battery cell is needed for the shadow clock. (a) False (b) True
10. 10.🧺 Which of these is not needed for the shadow clock? (a) a clock to check (b) a straight stick (c) chalk to mark shadows (d) a battery cell
11. 11.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) round (b) short (c) missing (d) long
12. 12.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same spot”? (a) we change it (b) we keep it the same (c) we measure it
13. 13.True or false: a wooden board is opaque. (a) False (b) True
14. 14.🧺 Which of these is needed for the shadow clock? (a) a battery cell (b) a straight stick (c) a magnet (d) a balloon
15. 15.True or false: frosted glass is translucent. (a) True (b) False
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 keep it the same (b) we measure it (c) we change it
17. 17.🔍 Which is the odd one out? (a) frosted glass (b) butter paper (c) tissue paper (d) a book
18. 18.🔍 Which is the odd one out? (a) your hand (b) clear glass (c) air (d) clear plastic film
19. 19.🧺 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 clock to check (d) a battery cell
20. 20.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) bigger (b) coloured (c) brighter (d) smaller
21. 21.True or false: oily paper is translucent. (a) True (b) False
22. 22.True or false: a straight stick is needed for the shadow clock. (a) True (b) False
23. 23.🛟 What should you wear for a long time in the hot sun? (a) a cap or hat (b) a woollen sweater (c) a raincoat (d) nothing on your head
24. 24.⚖️ 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
25. 25.⚖️ 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
26. 26.🧺 Do we need a magnet for the shadow clock? (a) not needed (b) needed
27. 27.📘 Why does a shadow form? (a) the object is cold (b) light bends round it (c) the ground is dark (d) an object blocks light
28. 28.🌍 Why does the stick’s shadow move during the day? (a) Earth keeps spinning (b) the stick walks (c) the stick grows (d) the ground slides
29. 29.🛟 While watching shadows outdoors, what must you never do? (a) sit in the shade (b) look straight at the Sun (c) wear a cap (d) mark with chalk
30. 30.🧺 Do we need a balloon for the shadow clock? (a) not needed (b) needed
31. 31.True or false: a balloon is needed for the shadow clock. (a) True (b) False
32. 32.⚖️ 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
33. 33.🧺 Do we need a clock to check for the shadow clock? (a) not needed (b) needed
34. 34.🔦 Is clear plastic film opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
35. 35.🔦 Which of these is opaque? (a) a steel plate (b) tissue paper (c) frosted glass (d) butter paper
36. 36.🧺 Which of these is needed for the shadow clock? (a) a battery cell (b) turmeric powder (c) a mirror (d) chalk to mark shadows
37. 37.🧺 Which of these is needed for the shadow clock? (a) a magnet (b) a mirror (c) a battery cell (d) a sunny open place
38. 38.🔦 Which of these is translucent? (a) oily paper (b) a steel plate (c) clear plastic film (d) your hand
39. 39.🧺 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 balloon (d) a sunny open place
40. 40.True or false: a clock to check is needed for the shadow clock. (a) True (b) False

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