Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 423 · 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 same stick is kept the same. (a) False (b) True
2. 2.True or false: yeast is not needed for the shadow clock. (a) False (b) True
3. 3.🧺 Do we need a battery cell for the shadow clock? (a) not needed (b) needed
4. 4.True or false: a balloon is needed for the shadow clock. (a) True (b) False
5. 5.⚖️ 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) shadow length (c) the same stick (d) the stick kept upright
6. 6.⚖️ 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
7. 7.🔦 Is a book opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
8. 8.🧺 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 straight stick
9. 9.🔍 Which is the odd one out? (a) clear plastic film (b) tissue paper (c) butter paper (d) frosted glass
10. 10.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) missing (b) round (c) long (d) short
11. 11.🧺 Which of these is needed for the shadow clock? (a) a balloon (b) a magnet (c) turmeric powder (d) a sunny open place
12. 12.🧺 Do we need a mirror for the shadow clock? (a) not needed (b) needed
13. 13.🔍 Which is the odd one out? (a) a brick (b) butter paper (c) tissue paper (d) frosted glass
14. 14.🔦 Which of these is translucent? (a) a wooden board (b) frosted glass (c) clean water (d) a steel plate
15. 15.🧺 Do we need turmeric powder for the shadow clock? (a) not needed (b) needed
16. 16.⚖️ 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 measure it (c) we change it
17. 17.📘 Why does a shadow form? (a) the ground is dark (b) light bends round it (c) the object is cold (d) an object blocks light
18. 18.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) a balloon (c) a straight stick (d) a clock to check
19. 19.🔦 Is tissue paper opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
20. 20.🛟 While watching shadows outdoors, what must you never do? (a) look straight at the Sun (b) mark with chalk (c) sit in the shade (d) wear a cap
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) True (b) False
22. 22.True or false: clear plastic film is transparent. (a) True (b) False
23. 23.True or false: a mirror is not needed for the shadow clock. (a) True (b) False
24. 24.🔦 Is butter paper opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
25. 25.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) a straight stick (c) a clock to check (d) turmeric powder
26. 26.🔦 Is a steel plate opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
27. 27.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) chalk to mark shadows (c) a sunny open place (d) a battery cell
28. 28.🧺 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 magnet (d) a straight stick
29. 29.True or false: a straight stick is needed for the shadow clock. (a) True (b) False
30. 30.⚖️ 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) the same spot (d) shadow length
31. 31.🛟 What should you wear for a long time in the hot sun? (a) a raincoat (b) a cap or hat (c) a woollen sweater (d) nothing on your head
32. 32.⚖️ 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) False (b) True
33. 33.True or false: a wooden board is opaque. (a) True (b) False
34. 34.⚖️ 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
35. 35.⚖️ 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
36. 36.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) east (b) north (c) west (d) up
37. 37.🔦 Which of these is transparent? (a) a book (b) clear plastic film (c) frosted glass (d) your hand
38. 38.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “shadow length”? (a) we change it (b) we measure it (c) we keep it the same
39. 39.🧺 Which of these is not needed for the shadow clock? (a) a battery cell (b) chalk to mark shadows (c) a sunny open place (d) a clock to check
40. 40.🧺 Which of these is not needed for the shadow clock? (a) a clock to check (b) a straight stick (c) turmeric powder (d) a sunny open place

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