Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 145 · 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 the one thing we change? (a) shadow length (b) the time of day (c) the same stick (d) the same spot
2. 2.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a magnet (c) a sunny open place (d) a straight stick
3. 3.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) round (b) long (c) missing (d) short
4. 4.🧺 Which of these is not needed for the shadow clock? (a) a balloon (b) a straight stick (c) a sunny open place (d) chalk to mark shadows
5. 5.🛟 While watching shadows outdoors, what must you never do? (a) wear a cap (b) look straight at the Sun (c) mark with chalk (d) sit in the shade
6. 6.🔍 Which is the odd one out? (a) oily paper (b) frosted glass (c) tissue paper (d) clean water
7. 7.🔦 Which of these is opaque? (a) butter paper (b) air (c) oily paper (d) a wooden board
8. 8.🧺 Do we need a sunny open place for the shadow clock? (a) needed (b) not needed
9. 9.True or false: yeast is not needed for the shadow clock. (a) False (b) True
10. 10.⚖️ 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 time of day (d) the same spot
11. 11.🔦 Is butter paper opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
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.🧺 Which of these is needed for the shadow clock? (a) a straight stick (b) a mirror (c) yeast (d) a magnet
14. 14.🔍 Which is the odd one out? (a) frosted glass (b) tissue paper (c) a steel plate (d) oily paper
15. 15.🧺 Do we need turmeric powder for the shadow clock? (a) needed (b) not needed
16. 16.🔮 Predict: on a fully cloudy day, the sundial ___. (a) does not work well (b) works better (c) shows two times (d) runs faster
17. 17.🔦 Which of these is opaque? (a) tissue paper (b) oily paper (c) your hand (d) clean water
18. 18.True or false: chalk to mark shadows is not needed for the shadow clock. (a) True (b) False
19. 19.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same spot is what we measure. (a) True (b) False
20. 20.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) bigger (b) coloured (c) smaller (d) brighter
21. 21.True or false: air is transparent. (a) False (b) True
22. 22.🔍 Which is the odd one out? (a) frosted glass (b) a wooden board (c) your hand (d) a steel plate
23. 23.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) a straight stick (c) a clock to check (d) a battery cell
24. 24.🛟 What should you wear for a long time in the hot sun? (a) a woollen sweater (b) nothing on your head (c) a raincoat (d) a cap or hat
25. 25.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) north (b) up (c) east (d) west
26. 26.🔦 Which of these is transparent? (a) clear plastic film (b) tissue paper (c) a steel plate (d) your hand
27. 27.⚖️ 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
28. 28.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same stick”? (a) we change it (b) we measure it (c) we keep it the same
29. 29.🧺 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) yeast
30. 30.True or false: a clock to check is not needed for the shadow clock. (a) False (b) True
31. 31.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) a sunny open place (c) a clock to check (d) a mirror
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) True (b) False
33. 33.True or false: a mirror is needed for the shadow clock. (a) False (b) True
34. 34.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: shadow length is kept the same. (a) True (b) False
35. 35.True or false: a magnet is needed for the shadow clock. (a) False (b) True
36. 36.🔍 Which is the odd one out? (a) a brick (b) clear glass (c) clean water (d) clear plastic film
37. 37.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “shadow length”? (a) we keep it the same (b) we measure it (c) we change it
38. 38.True or false: a steel plate is opaque. (a) True (b) False
39. 39.True or false: a straight stick is needed for the shadow clock. (a) True (b) False
40. 40.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is kept the same? (a) the same stick (b) shadow length (c) the time of day

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