Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 830 · 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.🛟 What should you wear for a long time in the hot sun? (a) a woollen sweater (b) a cap or hat (c) a raincoat (d) nothing on your head
2. 2.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “shadow length”? (a) we change it (b) we keep it the same (c) we measure it
3. 3.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) west (b) east (c) north (d) up
4. 4.📘 Why does a shadow form? (a) light bends round it (b) the ground is dark (c) the object is cold (d) an object blocks light
5. 5.🔍 Which is the odd one out? (a) a steel plate (b) a brick (c) a book (d) oily paper
6. 6.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) chalk to mark shadows (c) a balloon (d) a sunny open place
7. 7.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: shadow length is what we measure. (a) True (b) False
8. 8.🧺 Do we need chalk to mark shadows for the shadow clock? (a) not needed (b) needed
9. 9.🔍 Which is the odd one out? (a) clear glass (b) clean water (c) a book (d) air
10. 10.⚖️ 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) shadow length (c) the same stick (d) the stick kept upright
11. 11.True or false: a clock to check is needed for the shadow clock. (a) False (b) True
12. 12.🔦 Which of these is transparent? (a) a steel plate (b) a book (c) a brick (d) air
13. 13.True or false: your hand is translucent. (a) False (b) True
14. 14.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a straight stick (c) chalk to mark shadows (d) turmeric powder
15. 15.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) long (b) round (c) short (d) missing
16. 16.⚖️ 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 stick kept upright (c) the same stick (d) the time of day
17. 17.🧺 Which of these is needed for the shadow clock? (a) a magnet (b) a mirror (c) a clock to check (d) turmeric powder
18. 18.🔍 Which is the odd one out? (a) a brick (b) clear plastic film (c) a book (d) a wooden board
19. 19.🌍 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
20. 20.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) brighter (b) smaller (c) bigger (d) coloured
21. 21.True or false: a sunny open place is needed for the shadow clock. (a) True (b) False
22. 22.True or false: a straight stick is needed for the shadow clock. (a) False (b) True
23. 23.True or false: a magnet is needed for the shadow clock. (a) True (b) False
24. 24.True or false: a wooden board is translucent. (a) True (b) False
25. 25.⚖️ 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 stick
26. 26.🧺 Which of these is needed for the shadow clock? (a) a mirror (b) turmeric powder (c) a magnet (d) chalk to mark shadows
27. 27.🧺 Do we need a mirror for the shadow clock? (a) needed (b) not needed
28. 28.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is the one thing we change. (a) False (b) True
29. 29.🔦 Which of these is translucent? (a) clean water (b) a wooden board (c) your hand (d) butter paper
30. 30.🔦 Which of these is translucent? (a) clear glass (b) tissue paper (c) a steel plate (d) a brick
31. 31.🔦 Is clear glass opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
32. 32.🛟 While watching shadows outdoors, what must you never do? (a) mark with chalk (b) sit in the shade (c) wear a cap (d) look straight at the Sun
33. 33.True or false: frosted glass is translucent. (a) False (b) True
34. 34.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) yeast (b) a sunny open place (c) a clock to check (d) a straight stick
35. 35.True or false: chalk to mark shadows is not needed for the shadow clock. (a) True (b) False
36. 36.True or false: clear glass is transparent. (a) True (b) False
37. 37.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the stick kept upright”? (a) we measure it (b) we keep it the same (c) we change it
38. 38.🔦 Which of these is transparent? (a) oily paper (b) a brick (c) clean water (d) a steel plate
39. 39.⚖️ 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 measure it (c) we change it
40. 40.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) a straight stick (c) a mirror (d) a clock to check

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