Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 412 · 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 time of day is the one thing we change. (a) False (b) True
2. 2.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same spot”? (a) we measure it (b) we keep it the same (c) we change it
3. 3.🧺 Which of these is needed for the shadow clock? (a) a mirror (b) yeast (c) a balloon (d) a sunny open place
4. 4.🧺 Which of these is needed for the shadow clock? (a) a battery cell (b) turmeric powder (c) chalk to mark shadows (d) a balloon
5. 5.True or false: clean water is translucent. (a) False (b) True
6. 6.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is kept the same? (a) the time of day (b) shadow length (c) the same stick
7. 7.🧺 Which of these is not needed for the shadow clock? (a) a clock to check (b) a straight stick (c) yeast (d) a sunny open place
8. 8.⚖️ 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
9. 9.⚖️ 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 measure it (c) we keep it the same
10. 10.🔦 Is clear plastic film opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
11. 11.True or false: frosted glass is translucent. (a) False (b) True
12. 12.🔦 Is clear glass opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
13. 13.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a balloon (c) a sunny open place (d) a straight stick
14. 14.🔦 Which of these is opaque? (a) clear glass (b) your hand (c) air (d) oily paper
15. 15.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) a clock to check (c) a sunny open place (d) turmeric powder
16. 16.True or false: a straight stick is not needed for the shadow clock. (a) True (b) False
17. 17.🧺 Do we need a straight stick for the shadow clock? (a) needed (b) not needed
18. 18.⚖️ 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
19. 19.🔦 Which of these is translucent? (a) tissue paper (b) clean water (c) clear plastic film (d) air
20. 20.🔍 Which is the odd one out? (a) clear plastic film (b) butter paper (c) oily paper (d) tissue paper
21. 21.🔦 Is air opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
22. 22.🔍 Which is the odd one out? (a) a steel plate (b) frosted glass (c) a book (d) a wooden board
23. 23.🕰️ What is a sundial used for? (a) making rainbows (b) measuring rain (c) telling the time (d) weighing things
24. 24.🧺 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 straight stick (d) a magnet
25. 25.⚖️ 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
26. 26.🔮 Predict: on a fully cloudy day, the sundial ___. (a) does not work well (b) shows two times (c) runs faster (d) works better
27. 27.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is kept the same. (a) True (b) False
28. 28.🔍 Which is the odd one out? (a) a brick (b) a wooden board (c) air (d) your hand
29. 29.🛟 What should you wear for a long time in the hot sun? (a) a cap or hat (b) nothing on your head (c) a woollen sweater (d) a raincoat
30. 30.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a sunny open place (c) a straight stick (d) a battery cell
31. 31.⚖️ 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
32. 32.True or false: yeast is needed for the shadow clock. (a) True (b) False
33. 33.True or false: turmeric powder is needed for the shadow clock. (a) True (b) False
34. 34.🧺 Do we need a sunny open place for the shadow clock? (a) needed (b) not needed
35. 35.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) up (b) east (c) north (d) west
36. 36.🔦 Is your hand opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
37. 37.🔍 Which is the odd one out? (a) frosted glass (b) tissue paper (c) oily paper (d) a brick
38. 38.🔦 Is butter paper opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
39. 39.🧺 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) yeast (d) a clock to check
40. 40.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) round (b) missing (c) long (d) short

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