Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 399 · 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? What do we do with “the time of day”? (a) we change it (b) we measure it (c) we keep it the same
2. 2.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is the one thing we change? (a) the same spot (b) the same stick (c) the time of day (d) the stick kept upright
3. 3.🔦 Is clear glass opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
4. 4.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) missing (b) long (c) short (d) round
5. 5.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: shadow length is the one thing we change. (a) True (b) False
6. 6.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) up (b) west (c) north (d) east
7. 7.🔦 Is a brick opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
8. 8.🔮 Predict: on a fully cloudy day, the sundial ___. (a) works better (b) runs faster (c) shows two times (d) does not work well
9. 9.🔍 Which is the odd one out? (a) tissue paper (b) frosted glass (c) butter paper (d) air
10. 10.🔦 Is clear plastic film opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
11. 11.True or false: a straight stick is needed for the shadow clock. (a) False (b) True
12. 12.🔦 Which of these is transparent? (a) oily paper (b) clean water (c) frosted glass (d) tissue paper
13. 13.🧺 Do we need a mirror for the shadow clock? (a) needed (b) not needed
14. 14.🛟 While watching shadows outdoors, what must you never do? (a) mark with chalk (b) sit in the shade (c) wear a cap (d) look straight at the Sun
15. 15.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “shadow length”? (a) we change it (b) we measure it (c) we keep it the same
16. 16.🧺 Which of these is needed for the shadow clock? (a) turmeric powder (b) a magnet (c) a battery cell (d) a straight stick
17. 17.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) bigger (b) brighter (c) smaller (d) coloured
18. 18.🕰️ What is a sundial used for? (a) telling the time (b) measuring rain (c) making rainbows (d) weighing things
19. 19.⚖️ 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
20. 20.🧺 Do we need yeast for the shadow clock? (a) needed (b) not needed
21. 21.🧺 Do we need turmeric powder for the shadow clock? (a) needed (b) not needed
22. 22.🧺 Do we need a balloon for the shadow clock? (a) not needed (b) needed
23. 23.🛟 What should you wear for a long time in the hot sun? (a) a cap or hat (b) a raincoat (c) nothing on your head (d) a woollen sweater
24. 24.🔦 Which of these is opaque? (a) your hand (b) clean water (c) frosted glass (d) oily paper
25. 25.True or false: a straight stick is not needed for the shadow clock. (a) False (b) True
26. 26.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the stick kept upright is kept the same. (a) False (b) True
27. 27.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) yeast (c) a straight stick (d) a clock to check
28. 28.🔍 Which is the odd one out? (a) clear glass (b) clean water (c) air (d) oily paper
29. 29.🔍 Which is the odd one out? (a) your hand (b) a brick (c) a wooden board (d) clean water
30. 30.⚖️ 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
31. 31.⚖️ 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
32. 32.🔍 Which is the odd one out? (a) tissue paper (b) a brick (c) butter paper (d) frosted glass
33. 33.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a battery cell (b) a straight stick (c) a sunny open place (d) a clock to check
34. 34.⚖️ 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
35. 35.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same spot”? (a) we keep it the same (b) we measure it (c) we change it
36. 36.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: shadow length is what we measure. (a) False (b) True
37. 37.True or false: a magnet is not needed for the shadow clock. (a) False (b) True
38. 38.📘 Why does a shadow form? (a) the object is cold (b) light bends round it (c) an object blocks light (d) the ground is dark
39. 39.⚖️ 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 same stick
40. 40.🔍 Which is the odd one out? (a) a brick (b) a steel plate (c) a book (d) clear glass

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