Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 432 · 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 book is opaque. (a) False (b) True
2. 2.🔦 Which of these is transparent? (a) a brick (b) clear glass (c) a wooden board (d) a book
3. 3.🔮 Predict: on a fully cloudy day, the sundial ___. (a) runs faster (b) works better (c) does not work well (d) shows two times
4. 4.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) a clock to check (c) turmeric powder (d) a straight stick
5. 5.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) bigger (b) smaller (c) coloured (d) brighter
6. 6.⚖️ 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
7. 7.📘 Why does a shadow form? (a) the ground is dark (b) the object is cold (c) light bends round it (d) an object blocks light
8. 8.🧺 Which of these is needed for the shadow clock? (a) yeast (b) a straight stick (c) a magnet (d) a battery cell
9. 9.🧺 Do we need a sunny open place for the shadow clock? (a) needed (b) not needed
10. 10.True or false: a magnet is needed for the shadow clock. (a) False (b) True
11. 11.🧺 Do we need chalk to mark shadows for the shadow clock? (a) needed (b) not needed
12. 12.⚖️ 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) shadow length (d) the time of day
13. 13.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) up (b) east (c) north (d) west
14. 14.🔦 Which of these is opaque? (a) clear plastic film (b) frosted glass (c) your hand (d) butter paper
15. 15.🔍 Which is the odd one out? (a) clear glass (b) clear plastic film (c) clean water (d) frosted glass
16. 16.⚖️ 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
17. 17.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the stick kept upright is what we measure. (a) True (b) False
18. 18.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) short (b) missing (c) long (d) round
19. 19.True or false: a brick is opaque. (a) True (b) False
20. 20.🔍 Which is the odd one out? (a) butter paper (b) tissue paper (c) your hand (d) oily paper
21. 21.🕰️ What is a sundial used for? (a) weighing things (b) making rainbows (c) telling the time (d) measuring rain
22. 22.⚖️ 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 measure it (c) we keep it the same
23. 23.🛟 What should you wear for a long time in the hot sun? (a) nothing on your head (b) a woollen sweater (c) a raincoat (d) a cap or hat
24. 24.🔦 Is a wooden board opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
25. 25.🔦 Is frosted glass opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
26. 26.True or false: a sunny open place is not needed for the shadow clock. (a) False (b) True
27. 27.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is what we measure. (a) False (b) True
28. 28.🧺 Do we need a mirror for the shadow clock? (a) needed (b) not needed
29. 29.⚖️ 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
30. 30.🧺 Which of these is needed for the shadow clock? (a) chalk to mark shadows (b) a battery cell (c) turmeric powder (d) a magnet
31. 31.True or false: clean water is translucent. (a) False (b) True
32. 32.⚖️ 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 spot
33. 33.🧺 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) chalk to mark shadows (d) a battery cell
34. 34.🧺 Which of these is not needed for the shadow clock? (a) a mirror (b) a clock to check (c) a straight stick (d) a sunny open place
35. 35.True or false: a mirror is needed for the shadow clock. (a) False (b) True
36. 36.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) chalk to mark shadows (c) a magnet (d) a sunny open place
37. 37.🛟 While watching shadows outdoors, what must you never do? (a) sit in the shade (b) wear a cap (c) look straight at the Sun (d) mark with chalk
38. 38.🧺 Do we need a clock to check for the shadow clock? (a) needed (b) not needed
39. 39.⚖️ 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) the time of day (c) shadow length (d) the same spot
40. 40.🔍 Which is the odd one out? (a) your hand (b) clear plastic film (c) a book (d) a brick

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