Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 227 · 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.🧺 Do we need chalk to mark shadows for the shadow clock? (a) needed (b) not needed
2. 2.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) a straight stick (c) chalk to mark shadows (d) a magnet
3. 3.🕰️ What is a sundial used for? (a) weighing things (b) making rainbows (c) measuring rain (d) telling the time
4. 4.🌞 When is a stick’s shadow the shortest? (a) at night (b) around noon (c) early morning (d) late evening
5. 5.🔦 Which of these is translucent? (a) a book (b) your hand (c) air (d) frosted glass
6. 6.True or false: clear glass is transparent. (a) False (b) True
7. 7.⚖️ 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 keep it the same (c) we measure it
8. 8.🔦 Which of these is opaque? (a) tissue paper (b) clear plastic film (c) a brick (d) frosted glass
9. 9.⚖️ 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
10. 10.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) chalk to mark shadows (c) a battery cell (d) a clock to check
11. 11.🧺 Do we need a clock to check for the shadow clock? (a) needed (b) not needed
12. 12.True or false: a wooden board is opaque. (a) True (b) False
13. 13.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) bigger (b) coloured (c) smaller (d) brighter
14. 14.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a mirror (c) chalk to mark shadows (d) a straight stick
15. 15.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: shadow length is what we measure. (a) False (b) True
16. 16.🧺 Do we need turmeric powder for the shadow clock? (a) needed (b) not needed
17. 17.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the time of day”? (a) we measure it (b) we keep it the same (c) we change it
18. 18.🔦 Is air opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
19. 19.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) north (b) west (c) east (d) up
20. 20.🧺 Do we need a magnet for the shadow clock? (a) needed (b) not needed
21. 21.🛟 What should you wear for a long time in the hot sun? (a) nothing on your head (b) a woollen sweater (c) a raincoat (d) a cap or hat
22. 22.⚖️ 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
23. 23.🧺 Which of these is needed for the shadow clock? (a) a magnet (b) a sunny open place (c) a mirror (d) turmeric powder
24. 24.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a sunny open place (c) a magnet (d) chalk to mark shadows
25. 25.🔦 Is oily paper opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
26. 26.🔦 Is a wooden board opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
27. 27.⚖️ 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 same stick (c) shadow length (d) the same spot
28. 28.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) short (b) round (c) missing (d) long
29. 29.🔍 Which is the odd one out? (a) a book (b) butter paper (c) a wooden board (d) a steel plate
30. 30.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is kept the same? (a) shadow length (b) the stick kept upright (c) the time of day
31. 31.🔦 Which of these is opaque? (a) clear glass (b) oily paper (c) your hand (d) clear plastic film
32. 32.🧺 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
33. 33.🧺 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) yeast
34. 34.⚖️ 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) the same stick (c) the time of day (d) the same spot
35. 35.🧺 Which of these is needed for the shadow clock? (a) a straight stick (b) a magnet (c) a battery cell (d) a balloon
36. 36.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) a sunny open place (c) chalk to mark shadows (d) a battery cell
37. 37.🔦 Is frosted glass opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
38. 38.🔍 Which is the odd one out? (a) tissue paper (b) a steel plate (c) your hand (d) a book
39. 39.🛟 While watching shadows outdoors, what must you never do? (a) mark with chalk (b) look straight at the Sun (c) sit in the shade (d) wear a cap
40. 40.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the time of day is the one thing we change. (a) False (b) True

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