Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 836 · 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) brighter (b) coloured (c) smaller (d) bigger
2. 2.🌞 When is a stick’s shadow the shortest? (a) early morning (b) late evening (c) around noon (d) at night
3. 3.🧺 Do we need yeast for the shadow clock? (a) needed (b) not needed
4. 4.🧺 Do we need a balloon for the shadow clock? (a) not needed (b) needed
5. 5.🔦 Which of these is opaque? (a) a steel plate (b) frosted glass (c) clean water (d) butter paper
6. 6.🔍 Which is the odd one out? (a) your hand (b) a steel plate (c) a wooden board (d) clear glass
7. 7.🧺 Which of these is not needed for the shadow clock? (a) a balloon (b) a sunny open place (c) chalk to mark shadows (d) a straight stick
8. 8.🧺 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 battery cell (d) a clock to check
9. 9.True or false: butter paper is transparent. (a) False (b) True
10. 10.🔍 Which is the odd one out? (a) your hand (b) a steel plate (c) a wooden board (d) butter paper
11. 11.🛟 What should you wear for a long time in the hot sun? (a) a raincoat (b) a cap or hat (c) nothing on your head (d) a woollen sweater
12. 12.⚖️ 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
13. 13.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) round (b) missing (c) long (d) short
14. 14.🕰️ What is a sundial used for? (a) measuring rain (b) weighing things (c) making rainbows (d) telling the time
15. 15.⚖️ 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
16. 16.🧺 Do we need chalk to mark shadows for the shadow clock? (a) needed (b) not needed
17. 17.True or false: a steel plate is opaque. (a) False (b) True
18. 18.🛟 While watching shadows outdoors, what must you never do? (a) look straight at the Sun (b) wear a cap (c) mark with chalk (d) sit in the shade
19. 19.⚖️ 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
20. 20.🔦 Which of these is translucent? (a) butter paper (b) air (c) a wooden board (d) your hand
21. 21.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is kept the same? (a) the same stick (b) shadow length (c) the time of day
22. 22.True or false: a balloon is not needed for the shadow clock. (a) True (b) False
23. 23.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) a clock to check (c) a mirror (d) a sunny open place
24. 24.True or false: a steel plate is transparent. (a) True (b) False
25. 25.🧺 Which of these is not needed for the shadow clock? (a) a clock to check (b) a sunny open place (c) a straight stick (d) a mirror
26. 26.True or false: chalk to mark shadows is needed for the shadow clock. (a) False (b) True
27. 27.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) shadow length (b) the same stick (c) the time of day (d) the stick kept upright
28. 28.🧺 Which of these is needed for the shadow clock? (a) a straight stick (b) a mirror (c) turmeric powder (d) a battery cell
29. 29.🧺 Which of these is needed for the shadow clock? (a) chalk to mark shadows (b) turmeric powder (c) a mirror (d) a balloon
30. 30.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a clock to check (c) turmeric powder (d) a sunny open place
31. 31.🧺 Which of these is not needed for the shadow clock? (a) turmeric powder (b) a sunny open place (c) a straight stick (d) chalk to mark shadows
32. 32.🔍 Which is the odd one out? (a) a book (b) a steel plate (c) a wooden board (d) frosted glass
33. 33.🔦 Is a wooden board opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
34. 34.🔦 Which of these is transparent? (a) a steel plate (b) clear glass (c) a book (d) a brick
35. 35.True or false: chalk to mark shadows is not needed for the shadow clock. (a) False (b) True
36. 36.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is what we measure. (a) False (b) True
37. 37.🧺 Do we need a straight stick for the shadow clock? (a) needed (b) not needed
38. 38.True or false: a straight stick is needed for the shadow clock. (a) False (b) True
39. 39.🌍 Why does the stick’s shadow move during the day? (a) the ground slides (b) the stick grows (c) Earth keeps spinning (d) the stick walks
40. 40.🔦 Which of these is opaque? (a) frosted glass (b) clear glass (c) a wooden board (d) oily paper

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