Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 279 · 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.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the stick kept upright is what we measure. (a) True (b) False
2. 2.🔍 Which is the odd one out? (a) a steel plate (b) a wooden board (c) clear glass (d) a book
3. 3.🔍 Which is the odd one out? (a) clear plastic film (b) air (c) clean water (d) a brick
4. 4.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) bigger (b) coloured (c) smaller (d) brighter
5. 5.True or false: a straight stick is needed for the shadow clock. (a) False (b) True
6. 6.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the stick kept upright”? (a) we keep it the same (b) we change it (c) we measure it
7. 7.🧺 Which of these is not needed for the shadow clock? (a) a magnet (b) a sunny open place (c) chalk to mark shadows (d) a clock to check
8. 8.🛟 While watching shadows outdoors, what must you never do? (a) sit in the shade (b) wear a cap (c) mark with chalk (d) look straight at the Sun
9. 9.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the time of day is kept the same. (a) False (b) True
10. 10.📘 Why does a shadow form? (a) an object blocks light (b) the object is cold (c) the ground is dark (d) light bends round it
11. 11.⚖️ 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
12. 12.🛟 What should you wear for a long time in the hot sun? (a) a cap or hat (b) nothing on your head (c) a raincoat (d) a woollen sweater
13. 13.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) the stick kept upright (b) the time of day (c) shadow length (d) the same stick
14. 14.🔦 Which of these is translucent? (a) a steel plate (b) clear plastic film (c) clear glass (d) oily paper
15. 15.🧺 Do we need a clock to check for the shadow clock? (a) needed (b) not needed
16. 16.True or false: air is transparent. (a) True (b) False
17. 17.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) chalk to mark shadows (c) a sunny open place (d) a mirror
18. 18.🧺 Do we need chalk to mark shadows for the shadow clock? (a) needed (b) not needed
19. 19.🔦 Which of these is transparent? (a) tissue paper (b) a steel plate (c) clear glass (d) a wooden board
20. 20.🔦 Which of these is opaque? (a) oily paper (b) frosted glass (c) air (d) a brick
21. 21.⚖️ 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 same stick (c) the time of day (d) the stick kept upright
22. 22.True or false: air is opaque. (a) True (b) False
23. 23.⚖️ 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
24. 24.🔦 Is clear plastic film opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
25. 25.🧺 Do we need a sunny open place for the shadow clock? (a) needed (b) not needed
26. 26.🔍 Which is the odd one out? (a) butter paper (b) a wooden board (c) tissue paper (d) frosted glass
27. 27.True or false: a balloon is needed for the shadow clock. (a) False (b) True
28. 28.🔦 Which of these is opaque? (a) clear glass (b) a book (c) air (d) clean water
29. 29.🔍 Which is the odd one out? (a) a wooden board (b) clear plastic film (c) a book (d) your hand
30. 30.🔦 Which of these is transparent? (a) air (b) oily paper (c) frosted glass (d) a steel plate
31. 31.🔍 Which is the odd one out? (a) tissue paper (b) clean water (c) air (d) clear glass
32. 32.🧺 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) a magnet
33. 33.⚖️ 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
34. 34.🧺 Which of these is not needed for the shadow clock? (a) a clock to check (b) a straight stick (c) chalk to mark shadows (d) turmeric powder
35. 35.🕰️ What is a sundial used for? (a) making rainbows (b) measuring rain (c) weighing things (d) telling the time
36. 36.🧺 Do we need a straight stick for the shadow clock? (a) not needed (b) needed
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 change it (b) we measure it (c) we keep it the same
38. 38.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same stick”? (a) we measure it (b) we keep it the same (c) we change it
39. 39.True or false: a sunny open place is needed for the shadow clock. (a) False (b) True
40. 40.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) chalk to mark shadows (c) a straight stick (d) a battery cell

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