Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 999 · 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.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) up (b) east (c) north (d) west
2. 2.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) bigger (b) smaller (c) coloured (d) brighter
3. 3.True or false: tissue paper is translucent. (a) False (b) True
4. 4.🧺 Do we need a sunny open place for the shadow clock? (a) needed (b) not needed
5. 5.⚖️ 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 stick kept upright
6. 6.🔦 Which of these is transparent? (a) a brick (b) clean water (c) frosted glass (d) butter paper
7. 7.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the time of day is what we measure. (a) True (b) False
8. 8.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) chalk to mark shadows (c) a balloon (d) a clock to check
9. 9.⚖️ 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
10. 10.🔦 Is your hand opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
11. 11.🧺 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 mirror (d) a clock to check
12. 12.⚖️ 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
13. 13.🧺 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) yeast (d) a straight stick
14. 14.🔦 Which of these is translucent? (a) clear plastic film (b) air (c) a steel plate (d) oily paper
15. 15.True or false: a clock to check is needed for the shadow clock. (a) True (b) False
16. 16.🔦 Is oily paper opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
17. 17.🔦 Which of these is translucent? (a) air (b) clear plastic film (c) a steel plate (d) butter paper
18. 18.🔦 Is a wooden board opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
19. 19.🔍 Which is the odd one out? (a) clear plastic film (b) your hand (c) a brick (d) a wooden board
20. 20.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) long (b) round (c) short (d) missing
21. 21.⚖️ 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) shadow length (d) the same stick
22. 22.🕰️ What is a sundial used for? (a) making rainbows (b) weighing things (c) measuring rain (d) telling the time
23. 23.🔦 Is clear plastic film opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
24. 24.🛟 While watching shadows outdoors, what must you never do? (a) look straight at the Sun (b) sit in the shade (c) mark with chalk (d) wear a cap
25. 25.🧺 Do we need yeast for the shadow clock? (a) not needed (b) needed
26. 26.🧺 Do we need a balloon for the shadow clock? (a) needed (b) not needed
27. 27.🔍 Which is the odd one out? (a) frosted glass (b) tissue paper (c) a wooden board (d) butter paper
28. 28.True or false: frosted glass is translucent. (a) True (b) False
29. 29.🧺 Do we need a magnet for the shadow clock? (a) not needed (b) needed
30. 30.🌍 Why does the stick’s shadow move during the day? (a) Earth keeps spinning (b) the stick grows (c) the stick walks (d) the ground slides
31. 31.🔦 Which of these is opaque? (a) oily paper (b) frosted glass (c) tissue paper (d) a wooden board
32. 32.🧺 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
33. 33.⚖️ 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) the same spot (c) shadow length
34. 34.🛟 What should you wear for a long time in the hot sun? (a) a woollen sweater (b) a raincoat (c) a cap or hat (d) nothing on your head
35. 35.True or false: a mirror is not needed for the shadow clock. (a) False (b) True
36. 36.🔦 Is frosted glass opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
37. 37.📘 Why does a shadow form? (a) the ground is dark (b) the object is cold (c) an object blocks light (d) light bends round it
38. 38.🔦 Is tissue paper opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
39. 39.🧺 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 magnet (d) a sunny open place
40. 40.True or false: a battery cell is not needed for the shadow clock. (a) True (b) False

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