Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 827 · 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.🧺 Do we need a mirror for the shadow clock? (a) not needed (b) needed
2. 2.🔍 Which is the odd one out? (a) your hand (b) clear glass (c) a brick (d) a wooden board
3. 3.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a magnet (b) chalk to mark shadows (c) a clock to check (d) a straight stick
4. 4.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) a straight stick (c) a clock to check (d) a battery cell
5. 5.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) a sunny open place (c) a clock to check (d) a magnet
6. 6.🧺 Which of these is not needed for the shadow clock? (a) a clock to check (b) a sunny open place (c) yeast (d) a straight stick
7. 7.🕰️ What is a sundial used for? (a) making rainbows (b) measuring rain (c) telling the time (d) weighing things
8. 8.⚖️ 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
9. 9.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a sunny open place (c) chalk to mark shadows (d) a balloon
10. 10.📘 Why does a shadow form? (a) light bends round it (b) an object blocks light (c) the ground is dark (d) the object is cold
11. 11.True or false: a battery cell is not needed for the shadow clock. (a) False (b) True
12. 12.🔍 Which is the odd one out? (a) clean water (b) clear plastic film (c) butter paper (d) air
13. 13.🌞 When is a stick’s shadow the shortest? (a) late evening (b) around noon (c) early morning (d) at night
14. 14.🔦 Is air opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
15. 15.🛟 What should you wear for a long time in the hot sun? (a) a woollen sweater (b) a raincoat (c) nothing on your head (d) a cap or hat
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) shadow length (b) the same stick (c) the time of day (d) the same spot
17. 17.🔦 Is a steel plate opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
18. 18.True or false: a sunny open place is not needed for the shadow clock. (a) False (b) True
19. 19.🔦 Is frosted glass opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
20. 20.True or false: a clock to check is not needed for the shadow clock. (a) False (b) True
21. 21.🌍 Why does the stick’s shadow move during the day? (a) the stick walks (b) Earth keeps spinning (c) the ground slides (d) the stick grows
22. 22.🔦 Is your hand opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
23. 23.🔦 Which of these is translucent? (a) tissue paper (b) a brick (c) clear glass (d) a book
24. 24.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) short (b) missing (c) round (d) long
25. 25.⚖️ 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
26. 26.🔦 Which of these is translucent? (a) clean water (b) your hand (c) clear glass (d) butter paper
27. 27.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) yeast (b) a straight stick (c) a clock to check (d) a sunny open place
28. 28.🧺 Do we need a clock to check for the shadow clock? (a) not needed (b) needed
29. 29.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same spot is what we measure. (a) True (b) False
30. 30.🔍 Which is the odd one out? (a) tissue paper (b) butter paper (c) oily paper (d) clear plastic film
31. 31.⚖️ 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 keep it the same (c) we measure it
32. 32.⚖️ 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
33. 33.🧺 Which of these is needed for the shadow clock? (a) a magnet (b) a mirror (c) a sunny open place (d) turmeric powder
34. 34.🔦 Which of these is transparent? (a) frosted glass (b) a brick (c) clear plastic film (d) butter paper
35. 35.🔦 Which of these is opaque? (a) clean water (b) air (c) a book (d) oily paper
36. 36.True or false: tissue paper is translucent. (a) False (b) True
37. 37.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) the same stick (b) the time of day (c) the same spot (d) shadow length
38. 38.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a clock to check (c) chalk to mark shadows (d) turmeric powder
39. 39.🧺 Do we need a sunny open place for the shadow clock? (a) needed (b) not needed
40. 40.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is kept the same? (a) the stick kept upright (b) shadow length (c) the time of day

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