Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 112 · 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.🔦 Which of these is transparent? (a) tissue paper (b) a book (c) a brick (d) clear plastic film
2. 2.🔦 Is a book opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
3. 3.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) brighter (b) smaller (c) bigger (d) coloured
4. 4.True or false: frosted glass is opaque. (a) False (b) True
5. 5.🔦 Is a wooden board opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
6. 6.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) turmeric powder (c) a straight stick (d) a clock to check
7. 7.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is the one thing we change? (a) the stick kept upright (b) shadow length (c) the time of day (d) the same stick
8. 8.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) west (b) north (c) east (d) up
9. 9.🔦 Is clear plastic film opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
10. 10.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a mirror (c) chalk to mark shadows (d) a clock to check
11. 11.🛟 What should you wear for a long time in the hot sun? (a) a woollen sweater (b) a cap or hat (c) a raincoat (d) nothing on your head
12. 12.True or false: tissue paper is translucent. (a) False (b) True
13. 13.True or false: butter paper is translucent. (a) False (b) True
14. 14.⚖️ 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 stick (c) shadow length (d) the stick kept upright
15. 15.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is the one thing we change. (a) False (b) True
16. 16.🔍 Which is the odd one out? (a) butter paper (b) a wooden board (c) tissue paper (d) oily paper
17. 17.True or false: clear glass is opaque. (a) True (b) False
18. 18.🔍 Which is the odd one out? (a) clear plastic film (b) clean water (c) butter paper (d) clear glass
19. 19.🔍 Which is the odd one out? (a) a book (b) tissue paper (c) a wooden board (d) a brick
20. 20.🧺 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 magnet (d) chalk to mark shadows
21. 21.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the stick kept upright is the one thing we change. (a) False (b) True
22. 22.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) missing (b) long (c) round (d) short
23. 23.🌍 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
24. 24.⚖️ 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 measure it (c) we keep it the same
25. 25.⚖️ 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
26. 26.⚖️ 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 measure it (c) we change it
27. 27.🧺 Do we need a straight stick for the shadow clock? (a) not needed (b) needed
28. 28.🧺 Which of these is needed for the shadow clock? (a) a battery cell (b) a balloon (c) turmeric powder (d) a sunny open place
29. 29.🧺 Do we need chalk to mark shadows for the shadow clock? (a) not needed (b) needed
30. 30.🧺 Which of these is not needed for the shadow clock? (a) a battery cell (b) a sunny open place (c) a straight stick (d) a clock to check
31. 31.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) a balloon (c) a clock to check (d) chalk to mark shadows
32. 32.⚖️ 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) shadow length (c) the same spot
33. 33.🔮 Predict: on a fully cloudy day, the sundial ___. (a) works better (b) runs faster (c) shows two times (d) does not work well
34. 34.⚖️ 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) the time of day (c) shadow length
35. 35.🔦 Which of these is opaque? (a) oily paper (b) frosted glass (c) butter paper (d) a book
36. 36.⚖️ 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
37. 37.🛟 While watching shadows outdoors, what must you never do? (a) sit in the shade (b) wear a cap (c) look straight at the Sun (d) mark with chalk
38. 38.True or false: a sunny open place is not needed for the shadow clock. (a) True (b) False
39. 39.🔦 Which of these is translucent? (a) clear plastic film (b) oily paper (c) a brick (d) air
40. 40.True or false: a clock to check is not needed for the shadow clock. (a) True (b) False

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