Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 678 · 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.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) bigger (b) coloured (c) smaller (d) brighter
2. 2.🧺 Which of these is needed for the shadow clock? (a) a balloon (b) a magnet (c) a clock to check (d) yeast
3. 3.🔦 Is a wooden board opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
4. 4.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) east (b) north (c) west (d) up
5. 5.📘 Why does a shadow form? (a) the object is cold (b) the ground is dark (c) light bends round it (d) an object blocks light
6. 6.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) the same spot (b) the same stick (c) the time of day (d) shadow length
7. 7.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “shadow length”? (a) we keep it the same (b) we change it (c) we measure it
8. 8.🔦 Which of these is transparent? (a) a book (b) a wooden board (c) a steel plate (d) clean water
9. 9.⚖️ 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
10. 10.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a balloon (b) chalk to mark shadows (c) a clock to check (d) a straight stick
11. 11.⚖️ 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
12. 12.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a mirror (b) a straight stick (c) chalk to mark shadows (d) a sunny open place
13. 13.True or false: yeast is needed for the shadow clock. (a) True (b) False
14. 14.🧺 Which of these is needed for the shadow clock? (a) a sunny open place (b) a mirror (c) a magnet (d) yeast
15. 15.True or false: a balloon is not needed for the shadow clock. (a) True (b) False
16. 16.🛟 What should you wear for a long time in the hot sun? (a) a raincoat (b) nothing on your head (c) a woollen sweater (d) a cap or hat
17. 17.⚖️ 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 stick (b) the same spot (c) the time of day (d) shadow length
18. 18.⚖️ 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 same spot (c) the time of day
19. 19.🧺 Do we need a straight stick for the shadow clock? (a) not needed (b) needed
20. 20.True or false: clean water is translucent. (a) False (b) True
21. 21.True or false: a straight stick is not needed for the shadow clock. (a) True (b) False
22. 22.🕰️ What is a sundial used for? (a) measuring rain (b) telling the time (c) making rainbows (d) weighing things
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 keep it the same (b) we measure it (c) we change it
24. 24.🧺 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 clock to check (d) turmeric powder
25. 25.🛟 While watching shadows outdoors, what must you never do? (a) mark with chalk (b) sit in the shade (c) look straight at the Sun (d) wear a cap
26. 26.🔍 Which is the odd one out? (a) a wooden board (b) air (c) clean water (d) clear glass
27. 27.⚖️ 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
28. 28.True or false: turmeric powder is needed for the shadow clock. (a) True (b) False
29. 29.🧺 Which of these is not needed for the shadow clock? (a) a magnet (b) a straight stick (c) a sunny open place (d) chalk to mark shadows
30. 30.True or false: your hand is opaque. (a) False (b) True
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.🔍 Which is the odd one out? (a) clear glass (b) a book (c) a steel plate (d) your hand
33. 33.⚖️ 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
34. 34.🧺 Do we need a sunny open place for the shadow clock? (a) needed (b) not needed
35. 35.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same spot is kept the same. (a) False (b) True
36. 36.🔦 Which of these is opaque? (a) your hand (b) air (c) clear glass (d) clear plastic film
37. 37.🧺 Do we need a battery cell for the shadow clock? (a) not needed (b) needed
38. 38.🔦 Is clean water opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
39. 39.🔦 Which of these is translucent? (a) clear glass (b) a book (c) clean water (d) tissue paper
40. 40.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: shadow length is kept the same. (a) False (b) True

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