Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 390 · 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.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) a straight stick (c) a sunny open place (d) a magnet
2. 2.🧺 Which of these is not needed for the shadow clock? (a) a clock to check (b) yeast (c) chalk to mark shadows (d) a sunny open place
3. 3.True or false: tissue paper is opaque. (a) False (b) True
4. 4.🧺 Do we need a clock to check for the shadow clock? (a) needed (b) not needed
5. 5.🧺 Which of these is needed for the shadow clock? (a) yeast (b) a mirror (c) a balloon (d) a clock to check
6. 6.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) the time of day (b) the stick kept upright (c) the same spot (d) shadow length
7. 7.🕰️ What is a sundial used for? (a) making rainbows (b) weighing things (c) measuring rain (d) telling the time
8. 8.True or false: a brick is opaque. (a) False (b) True
9. 9.🔍 Which is the odd one out? (a) frosted glass (b) butter paper (c) tissue paper (d) a wooden board
10. 10.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) a sunny open place (c) a straight stick (d) yeast
11. 11.⚖️ 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 stick kept upright (c) the time of day
12. 12.🔦 Which of these is translucent? (a) a book (b) your hand (c) tissue paper (d) clear glass
13. 13.⚖️ 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) False (b) True
14. 14.True or false: yeast is needed for the shadow clock. (a) False (b) True
15. 15.⚖️ 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 stick (c) shadow length (d) the same spot
16. 16.True or false: a mirror is not needed for the shadow clock. (a) False (b) True
17. 17.🔦 Is butter paper opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
18. 18.🧺 Which of these is needed for the shadow clock? (a) a straight stick (b) a magnet (c) a mirror (d) a battery cell
19. 19.🧺 Do we need a straight stick for the shadow clock? (a) needed (b) not needed
20. 20.🧺 Do we need a battery cell for the shadow clock? (a) needed (b) not needed
21. 21.🛟 While watching shadows outdoors, what must you never do? (a) wear a cap (b) sit in the shade (c) mark with chalk (d) look straight at the Sun
22. 22.🧺 Do we need yeast for the shadow clock? (a) not needed (b) needed
23. 23.🔦 Is clean water opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
24. 24.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a balloon (b) chalk to mark shadows (c) a straight stick (d) a sunny open place
25. 25.🔦 Which of these is opaque? (a) clear glass (b) tissue paper (c) a wooden board (d) frosted glass
26. 26.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a battery cell (b) a clock to check (c) a sunny open place (d) chalk to mark shadows
27. 27.🔦 Is oily paper opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
28. 28.🧺 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
29. 29.⚖️ 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 stick (c) the time of day
30. 30.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) chalk to mark shadows (c) a straight stick (d) a battery cell
31. 31.🔍 Which is the odd one out? (a) clean water (b) a book (c) air (d) clear glass
32. 32.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) a clock to check (c) a balloon (d) a straight stick
33. 33.⚖️ 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
34. 34.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) east (b) up (c) north (d) west
35. 35.⚖️ 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
36. 36.🔦 Which of these is transparent? (a) butter paper (b) your hand (c) clear plastic film (d) a brick
37. 37.🛟 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
38. 38.True or false: a battery cell is needed for the shadow clock. (a) True (b) False
39. 39.🔍 Which is the odd one out? (a) clean water (b) clear plastic film (c) air (d) frosted glass
40. 40.🌍 Why does the stick’s shadow move during the day? (a) the stick walks (b) the stick grows (c) the ground slides (d) Earth keeps spinning

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