Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 713 · 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.⚖️ 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 same spot (d) the stick kept upright
2. 2.🔍 Which is the odd one out? (a) a wooden board (b) a book (c) a steel plate (d) oily paper
3. 3.🛟 What should you wear for a long time in the hot sun? (a) a woollen sweater (b) a cap or hat (c) a raincoat (d) nothing on your head
4. 4.🧺 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) yeast
5. 5.🧺 Which of these is not needed for the shadow clock? (a) a battery cell (b) a clock to check (c) a straight stick (d) a sunny open place
6. 6.🔦 Which of these is opaque? (a) oily paper (b) clear plastic film (c) butter paper (d) a steel plate
7. 7.True or false: a steel plate is opaque. (a) True (b) False
8. 8.True or false: oily paper is transparent. (a) True (b) False
9. 9.🧺 Which of these is needed for the shadow clock? (a) a battery cell (b) turmeric powder (c) a mirror (d) a clock to check
10. 10.🔍 Which is the odd one out? (a) clear plastic film (b) clean water (c) air (d) tissue paper
11. 11.🔍 Which is the odd one out? (a) oily paper (b) air (c) frosted glass (d) butter paper
12. 12.⚖️ 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
13. 13.⚖️ 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
14. 14.🔍 Which is the odd one out? (a) a wooden board (b) clear glass (c) air (d) clear plastic film
15. 15.True or false: a sunny open place is not needed for the shadow clock. (a) False (b) True
16. 16.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) brighter (b) coloured (c) smaller (d) bigger
17. 17.📘 Why does a shadow form? (a) an object blocks light (b) the ground is dark (c) light bends round it (d) the object is cold
18. 18.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) a clock to check (c) a sunny open place (d) a balloon
19. 19.True or false: a clock to check is needed for the shadow clock. (a) True (b) False
20. 20.True or false: tissue paper is transparent. (a) True (b) False
21. 21.🧺 Which of these is needed for the shadow clock? (a) a mirror (b) a balloon (c) turmeric powder (d) a straight stick
22. 22.🔦 Which of these is opaque? (a) clean water (b) oily paper (c) your hand (d) air
23. 23.🧺 Do we need a straight stick for the shadow clock? (a) needed (b) not needed
24. 24.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) round (b) long (c) missing (d) short
25. 25.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the stick kept upright”? (a) we change it (b) we keep it the same (c) we measure it
26. 26.True or false: clean water is transparent. (a) True (b) False
27. 27.⚖️ 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 spot (c) the same stick (d) the stick kept upright
28. 28.⚖️ 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
29. 29.🔦 Is clear plastic film opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
30. 30.🔦 Is clean water opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
31. 31.True or false: a book is opaque. (a) True (b) False
32. 32.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a sunny open place (c) a battery cell (d) a clock to check
33. 33.🔍 Which is the odd one out? (a) clear plastic film (b) a wooden board (c) a steel plate (d) your hand
34. 34.🔍 Which is the odd one out? (a) your hand (b) butter paper (c) oily paper (d) tissue paper
35. 35.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is kept the same? (a) the stick kept upright (b) shadow length (c) the time of day
36. 36.🔮 Predict: on a fully cloudy day, the sundial ___. (a) runs faster (b) shows two times (c) does not work well (d) works better
37. 37.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) up (b) north (c) west (d) east
38. 38.⚖️ 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
39. 39.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a sunny open place (c) a mirror (d) a clock to check
40. 40.🔦 Is tissue paper opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque

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