Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 832 · 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.🛟 While watching shadows outdoors, what must you never do? (a) mark with chalk (b) sit in the shade (c) look straight at the Sun (d) wear a cap
2. 2.True or false: butter paper is transparent. (a) False (b) True
3. 3.🔦 Is your hand opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
4. 4.True or false: a wooden board is opaque. (a) True (b) False
5. 5.True or false: a balloon is needed for the shadow clock. (a) True (b) False
6. 6.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) brighter (b) smaller (c) bigger (d) coloured
7. 7.⚖️ 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
8. 8.🔦 Which of these is translucent? (a) a steel plate (b) a book (c) clear glass (d) butter paper
9. 9.🔍 Which is the odd one out? (a) oily paper (b) clear glass (c) frosted glass (d) butter paper
10. 10.🔍 Which is the odd one out? (a) clear glass (b) a book (c) clear plastic film (d) air
11. 11.🛟 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
12. 12.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) a battery cell (c) chalk to mark shadows (d) a clock to check
13. 13.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a balloon (b) chalk to mark shadows (c) a sunny open place (d) a straight stick
14. 14.🔦 Is a book opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
15. 15.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same spot is kept the same. (a) False (b) True
16. 16.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a clock to check (c) a battery cell (d) a sunny open place
17. 17.🧺 Do we need chalk to mark shadows for the shadow clock? (a) not needed (b) needed
18. 18.True or false: a battery cell is not needed for the shadow clock. (a) False (b) True
19. 19.🧺 Do we need turmeric powder for the shadow clock? (a) needed (b) not needed
20. 20.⚖️ 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 same spot (c) shadow length (d) the same stick
21. 21.📘 Why does a shadow form? (a) light bends round it (b) an object blocks light (c) the object is cold (d) the ground is dark
22. 22.🔍 Which is the odd one out? (a) clear glass (b) clear plastic film (c) air (d) a brick
23. 23.⚖️ 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 change it (c) we keep it the same
24. 24.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is the one thing we change? (a) the time of day (b) the same stick (c) shadow length (d) the same spot
25. 25.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) up (b) north (c) east (d) west
26. 26.🔦 Which of these is transparent? (a) a brick (b) a wooden board (c) a book (d) clear glass
27. 27.⚖️ 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
28. 28.True or false: a clock to check is not needed for the shadow clock. (a) True (b) False
29. 29.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) chalk to mark shadows (c) yeast (d) a sunny open place
30. 30.🔦 Which of these is transparent? (a) a book (b) clean water (c) a steel plate (d) a wooden board
31. 31.🌍 Why does the stick’s shadow move during the day? (a) the ground slides (b) the stick walks (c) the stick grows (d) Earth keeps spinning
32. 32.True or false: clean water is transparent. (a) False (b) True
33. 33.True or false: a sunny open place is not needed for the shadow clock. (a) True (b) False
34. 34.🔦 Which of these is opaque? (a) butter paper (b) a brick (c) tissue paper (d) oily paper
35. 35.⚖️ 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
36. 36.🔍 Which is the odd one out? (a) butter paper (b) clear plastic film (c) clean water (d) air
37. 37.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same spot”? (a) we measure it (b) we change it (c) we keep it the same
38. 38.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) a balloon (c) a sunny open place (d) a straight stick
39. 39.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) a sunny open place (c) a clock to check (d) a magnet
40. 40.🔦 Which of these is opaque? (a) oily paper (b) a steel plate (c) frosted glass (d) clear glass

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