Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 179 · 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.True or false: a straight stick is needed for the shadow clock. (a) False (b) True
2. 2.🛟 While watching shadows outdoors, what must you never do? (a) look straight at the Sun (b) wear a cap (c) sit in the shade (d) mark with chalk
3. 3.🔦 Which of these is opaque? (a) clear plastic film (b) clean water (c) oily paper (d) a steel plate
4. 4.True or false: butter paper is translucent. (a) False (b) True
5. 5.🧺 Do we need a straight stick for the shadow clock? (a) not needed (b) needed
6. 6.⚖️ 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) False (b) True
7. 7.🔍 Which is the odd one out? (a) oily paper (b) frosted glass (c) tissue paper (d) your hand
8. 8.🛟 What should you wear for a long time in the hot sun? (a) a raincoat (b) a cap or hat (c) nothing on your head (d) a woollen sweater
9. 9.🔦 Which of these is opaque? (a) tissue paper (b) air (c) butter paper (d) a wooden board
10. 10.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) long (b) round (c) short (d) missing
11. 11.🔦 Which of these is transparent? (a) a steel plate (b) frosted glass (c) oily paper (d) clean water
12. 12.🔦 Is a wooden board opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
13. 13.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same spot is what we measure. (a) False (b) True
14. 14.⚖️ 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
15. 15.🧺 Which of these is needed for the shadow clock? (a) a balloon (b) chalk to mark shadows (c) a mirror (d) a magnet
16. 16.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) west (b) up (c) north (d) east
17. 17.⚖️ 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
18. 18.🔮 Predict: on a fully cloudy day, the sundial ___. (a) works better (b) does not work well (c) runs faster (d) shows two times
19. 19.🧺 Do we need yeast for the shadow clock? (a) not needed (b) needed
20. 20.🧺 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
21. 21.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) turmeric powder (b) a straight stick (c) a sunny open place (d) a clock to check
22. 22.🔦 Is butter paper opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
23. 23.🧺 Do we need a magnet for the shadow clock? (a) not needed (b) needed
24. 24.⚖️ 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 measure it (c) we change it
25. 25.⚖️ 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
26. 26.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a straight stick (c) chalk to mark shadows (d) a balloon
27. 27.True or false: a steel plate is opaque. (a) True (b) False
28. 28.🔍 Which is the odd one out? (a) tissue paper (b) clear plastic film (c) oily paper (d) butter paper
29. 29.🧺 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 sunny open place (d) a mirror
30. 30.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a magnet (b) a straight stick (c) chalk to mark shadows (d) a sunny open place
31. 31.True or false: a sunny open place is not needed for the shadow clock. (a) True (b) False
32. 32.True or false: your hand is translucent. (a) True (b) False
33. 33.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) smaller (b) coloured (c) bigger (d) brighter
34. 34.🧺 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
35. 35.True or false: clear plastic film is translucent. (a) False (b) True
36. 36.🧺 Which of these is needed for the shadow clock? (a) a battery cell (b) a sunny open place (c) a magnet (d) a mirror
37. 37.⚖️ 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
38. 38.True or false: a sunny open place is needed for the shadow clock. (a) False (b) True
39. 39.🔦 Is clean water opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
40. 40.🧺 Do we need turmeric powder for the shadow clock? (a) needed (b) not needed

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