Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 639 · 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.True or false: clean water is translucent. (a) False (b) True
2. 2.📘 Why does a shadow form? (a) an object blocks light (b) the ground is dark (c) the object is cold (d) light bends round it
3. 3.🛟 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
4. 4.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) coloured (b) smaller (c) bigger (d) brighter
5. 5.🧺 Do we need a mirror for the shadow clock? (a) needed (b) not needed
6. 6.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same stick”? (a) we keep it the same (b) we measure it (c) we change it
7. 7.True or false: chalk to mark shadows is needed for the shadow clock. (a) True (b) False
8. 8.True or false: clean water is opaque. (a) False (b) True
9. 9.🧺 Which of these is needed for the shadow clock? (a) a straight stick (b) a balloon (c) turmeric powder (d) yeast
10. 10.🔍 Which is the odd one out? (a) frosted glass (b) clear glass (c) oily paper (d) tissue paper
11. 11.🧺 Which of these is not needed for the shadow clock? (a) a clock to check (b) a sunny open place (c) a balloon (d) a straight stick
12. 12.🧺 Which of these is needed for the shadow clock? (a) yeast (b) turmeric powder (c) a clock to check (d) a battery cell
13. 13.True or false: a mirror is needed for the shadow clock. (a) False (b) True
14. 14.⚖️ 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
15. 15.🕰️ What is a sundial used for? (a) measuring rain (b) weighing things (c) making rainbows (d) telling the time
16. 16.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a mirror (c) a clock to check (d) chalk to mark shadows
17. 17.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) long (b) short (c) round (d) missing
18. 18.⚖️ 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 measure it (c) we change it
19. 19.🛟 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
20. 20.True or false: a straight stick is not needed for the shadow clock. (a) False (b) True
21. 21.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is kept the same. (a) False (b) True
22. 22.🔦 Which of these is opaque? (a) a brick (b) tissue paper (c) air (d) frosted glass
23. 23.🧺 Which of these is needed for the shadow clock? (a) a mirror (b) a battery cell (c) a sunny open place (d) a balloon
24. 24.🧺 Do we need turmeric powder for the shadow clock? (a) needed (b) not needed
25. 25.🔦 Which of these is opaque? (a) air (b) oily paper (c) tissue paper (d) a wooden board
26. 26.🔦 Which of these is opaque? (a) clear plastic film (b) a book (c) clean water (d) air
27. 27.🔍 Which is the odd one out? (a) frosted glass (b) clean water (c) clear glass (d) clear plastic film
28. 28.⚖️ 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
29. 29.🧺 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 straight stick (d) a balloon
30. 30.🧺 Do we need chalk to mark shadows for the shadow clock? (a) not needed (b) needed
31. 31.⚖️ 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
32. 32.🔦 Is a book opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
33. 33.🔦 Is clear plastic film opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
34. 34.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same spot”? (a) we keep it the same (b) we change it (c) we measure it
35. 35.🌍 Why does the stick’s shadow move during the day? (a) Earth keeps spinning (b) the ground slides (c) the stick walks (d) the stick grows
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) True (b) False
37. 37.⚖️ 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
38. 38.🔍 Which is the odd one out? (a) your hand (b) a brick (c) butter paper (d) a wooden board
39. 39.⚖️ 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
40. 40.🧺 Do we need yeast for the shadow clock? (a) needed (b) not needed

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