Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 980 · 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 mirror is needed for the shadow clock. (a) True (b) False
2. 2.🧺 Do we need a balloon for the shadow clock? (a) needed (b) not needed
3. 3.🔦 Is clear plastic film opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
4. 4.True or false: a steel plate is translucent. (a) False (b) True
5. 5.True or false: a straight stick is not needed for the shadow clock. (a) True (b) False
6. 6.⚖️ 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 stick kept upright (c) the same spot (d) the same stick
7. 7.⚖️ 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
8. 8.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a mirror (b) a sunny open place (c) a clock to check (d) a straight stick
9. 9.🛟 While watching shadows outdoors, what must you never do? (a) wear a cap (b) look straight at the Sun (c) sit in the shade (d) mark with chalk
10. 10.🧺 Which of these is needed for the shadow clock? (a) a clock to check (b) a mirror (c) yeast (d) a balloon
11. 11.🔍 Which is the odd one out? (a) clear plastic film (b) frosted glass (c) air (d) clear glass
12. 12.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) bigger (b) brighter (c) smaller (d) coloured
13. 13.🔮 Predict: on a fully cloudy day, the sundial ___. (a) does not work well (b) shows two times (c) runs faster (d) works better
14. 14.True or false: a clock to check is needed for the shadow clock. (a) False (b) True
15. 15.📘 Why does a shadow form? (a) the ground is dark (b) light bends round it (c) an object blocks light (d) the object is cold
16. 16.True or false: a magnet is not needed for the shadow clock. (a) False (b) True
17. 17.🌍 Why does the stick’s shadow move during the day? (a) Earth keeps spinning (b) the ground slides (c) the stick walks (d) the stick grows
18. 18.🧺 Which of these is not needed for the shadow clock? (a) a clock to check (b) a straight stick (c) yeast (d) chalk to mark shadows
19. 19.🧺 Which of these is needed for the shadow clock? (a) a magnet (b) a balloon (c) a mirror (d) a sunny open place
20. 20.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) yeast (c) a clock to check (d) chalk to mark shadows
21. 21.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) north (b) up (c) east (d) west
22. 22.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the stick kept upright is the one thing we change. (a) True (b) False
23. 23.⚖️ 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
24. 24.⚖️ 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
25. 25.🔍 Which is the odd one out? (a) clear plastic film (b) tissue paper (c) clear glass (d) air
26. 26.🔦 Which of these is transparent? (a) a book (b) your hand (c) tissue paper (d) air
27. 27.🧺 Do we need chalk to mark shadows for the shadow clock? (a) not needed (b) needed
28. 28.🔦 Is a steel plate opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
29. 29.True or false: a straight stick is needed for the shadow clock. (a) True (b) False
30. 30.🔍 Which is the odd one out? (a) a brick (b) frosted glass (c) butter paper (d) tissue paper
31. 31.🕰️ What is a sundial used for? (a) weighing things (b) measuring rain (c) telling the time (d) making rainbows
32. 32.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a sunny open place (c) a balloon (d) chalk to mark shadows
33. 33.🛟 What should you wear for a long time in the hot sun? (a) a cap or hat (b) nothing on your head (c) a raincoat (d) a woollen sweater
34. 34.True or false: a clock to check is not needed for the shadow clock. (a) True (b) False
35. 35.⚖️ 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
36. 36.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the stick kept upright”? (a) we keep it the same (b) we change it (c) we measure it
37. 37.🧺 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
38. 38.True or false: turmeric powder is needed for the shadow clock. (a) True (b) False
39. 39.⚖️ 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
40. 40.True or false: a sunny open place is not needed for the shadow clock. (a) False (b) True

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