Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 104 · 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? True or false: the same stick is kept the same. (a) False (b) True
2. 2.🔦 Which of these is transparent? (a) a book (b) clear plastic film (c) tissue paper (d) oily paper
3. 3.True or false: clear plastic film is opaque. (a) True (b) False
4. 4.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) round (b) long (c) missing (d) short
5. 5.True or false: clean water is translucent. (a) False (b) True
6. 6.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) east (b) up (c) west (d) north
7. 7.⚖️ 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
8. 8.True or false: chalk to mark shadows is needed for the shadow clock. (a) True (b) False
9. 9.True or false: oily paper is translucent. (a) True (b) False
10. 10.True or false: a steel plate is opaque. (a) True (b) False
11. 11.⚖️ 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
12. 12.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) a balloon (c) a clock to check (d) a straight stick
13. 13.🛟 While watching shadows outdoors, what must you never do? (a) look straight at the Sun (b) sit in the shade (c) mark with chalk (d) wear a cap
14. 14.True or false: a straight stick is needed for the shadow clock. (a) False (b) True
15. 15.🧺 Do we need a balloon for the shadow clock? (a) needed (b) not needed
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 measure it (b) we keep it the same (c) we change it
17. 17.🔦 Is air opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
18. 18.🧺 Which of these is needed for the shadow clock? (a) a magnet (b) yeast (c) a balloon (d) a straight stick
19. 19.⚖️ 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 stick kept upright (d) the same stick
20. 20.🔍 Which is the odd one out? (a) clear glass (b) clean water (c) clear plastic film (d) frosted glass
21. 21.🔦 Which of these is transparent? (a) butter paper (b) a brick (c) clear glass (d) your hand
22. 22.🌞 When is a stick’s shadow the shortest? (a) at night (b) early morning (c) around noon (d) late evening
23. 23.🔍 Which is the odd one out? (a) a wooden board (b) a brick (c) a steel plate (d) clean water
24. 24.⚖️ 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 time of day (c) the stick kept upright
25. 25.True or false: a balloon is not needed for the shadow clock. (a) False (b) True
26. 26.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) chalk to mark shadows (c) a battery cell (d) a straight stick
27. 27.🔮 Predict: on a fully cloudy day, the sundial ___. (a) does not work well (b) runs faster (c) shows two times (d) works better
28. 28.⚖️ 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) False (b) True
29. 29.🛟 What should you wear for a long time in the hot sun? (a) a raincoat (b) a woollen sweater (c) nothing on your head (d) a cap or hat
30. 30.⚖️ 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
31. 31.🔦 Is your hand opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
32. 32.🔍 Which is the odd one out? (a) air (b) clear glass (c) a steel plate (d) clear plastic film
33. 33.⚖️ 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
34. 34.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) smaller (b) bigger (c) coloured (d) brighter
35. 35.🔦 Is butter paper opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
36. 36.🧺 Do we need turmeric powder for the shadow clock? (a) not needed (b) needed
37. 37.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) a sunny open place (c) turmeric powder (d) a clock to check
38. 38.True or false: butter paper is translucent. (a) True (b) False
39. 39.⚖️ 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
40. 40.🔦 Which of these is transparent? (a) oily paper (b) a steel plate (c) clean water (d) a book

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