Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 704 · 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 mirror for the shadow clock? (a) not needed (b) needed
2. 2.🔍 Which is the odd one out? (a) a steel plate (b) your hand (c) butter paper (d) a book
3. 3.🔦 Which of these is translucent? (a) clear glass (b) frosted glass (c) clear plastic film (d) a steel plate
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 keep it the same (b) we change it (c) we measure it
5. 5.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) a mirror (c) a sunny open place (d) a clock to check
6. 6.True or false: a magnet is needed for the shadow clock. (a) True (b) False
7. 7.📘 Why does a shadow form? (a) light bends round it (b) an object blocks light (c) the object is cold (d) the ground is dark
8. 8.🔮 Predict: on a fully cloudy day, the sundial ___. (a) works better (b) runs faster (c) does not work well (d) shows two times
9. 9.True or false: a sunny open place is needed for the shadow clock. (a) True (b) False
10. 10.🕰️ What is a sundial used for? (a) weighing things (b) making rainbows (c) measuring rain (d) telling the time
11. 11.⚖️ 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
12. 12.True or false: a sunny open place is not needed for the shadow clock. (a) True (b) False
13. 13.True or false: a clock to check is not needed for the shadow clock. (a) False (b) True
14. 14.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) a straight stick (c) turmeric powder (d) a clock to check
15. 15.True or false: turmeric powder is needed for the shadow clock. (a) True (b) False
16. 16.🧺 Do we need yeast for the shadow clock? (a) needed (b) not needed
17. 17.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a magnet (b) a straight stick (c) a clock to check (d) a sunny open place
18. 18.🔦 Which of these is opaque? (a) clear glass (b) oily paper (c) a brick (d) frosted glass
19. 19.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) round (b) missing (c) short (d) long
20. 20.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) yeast (c) a straight stick (d) chalk to mark shadows
21. 21.True or false: a mirror is not needed for the shadow clock. (a) True (b) False
22. 22.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) turmeric powder (c) chalk to mark shadows (d) a sunny open place
23. 23.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) a sunny open place (c) a balloon (d) a straight stick
24. 24.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) a battery cell (c) a straight stick (d) a sunny open place
25. 25.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) brighter (b) bigger (c) coloured (d) smaller
26. 26.🔦 Is clean water opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
27. 27.🛟 What should you wear for a long time in the hot sun? (a) a raincoat (b) nothing on your head (c) a woollen sweater (d) a cap or hat
28. 28.True or false: yeast is needed for the shadow clock. (a) True (b) False
29. 29.🧺 Which of these is needed for the shadow clock? (a) a magnet (b) a mirror (c) turmeric powder (d) a straight stick
30. 30.🧺 Do we need a balloon for the shadow clock? (a) needed (b) not needed
31. 31.🔦 Is tissue paper opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
32. 32.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) a straight stick (c) chalk to mark shadows (d) a balloon
33. 33.🔍 Which is the odd one out? (a) frosted glass (b) a wooden board (c) a steel plate (d) a brick
34. 34.🔦 Is frosted glass opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
35. 35.⚖️ 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
36. 36.🔦 Which of these is transparent? (a) frosted glass (b) a book (c) a wooden board (d) air
37. 37.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a battery cell (b) a clock to check (c) a straight stick (d) a sunny open place
38. 38.🔦 Which of these is translucent? (a) a book (b) a brick (c) tissue paper (d) a wooden board
39. 39.⚖️ 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
40. 40.🧺 Which of these is needed for the shadow clock? (a) a magnet (b) a sunny open place (c) a balloon (d) turmeric powder

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