Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 707 · 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 needed for the shadow clock? (a) yeast (b) a clock to check (c) turmeric powder (d) a balloon
2. 2.🔍 Which is the odd one out? (a) air (b) frosted glass (c) butter paper (d) oily paper
3. 3.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) coloured (b) bigger (c) brighter (d) smaller
4. 4.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the stick kept upright is kept the same. (a) False (b) True
5. 5.⚖️ 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
6. 6.⚖️ 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
7. 7.True or false: a sunny open place is not needed for the shadow clock. (a) False (b) True
8. 8.⚖️ 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 keep it the same (c) we measure it
9. 9.🧺 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 sunny open place (d) yeast
10. 10.🛟 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
11. 11.⚖️ 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
12. 12.True or false: a brick is opaque. (a) False (b) True
13. 13.True or false: a wooden board is opaque. (a) False (b) True
14. 14.🔦 Is a steel plate opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
15. 15.🛟 What should you wear for a long time in the hot sun? (a) a raincoat (b) nothing on your head (c) a cap or hat (d) a woollen sweater
16. 16.🧺 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 magnet
17. 17.🧺 Do we need chalk to mark shadows for the shadow clock? (a) needed (b) not needed
18. 18.📘 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
19. 19.🌞 When is a stick’s shadow the shortest? (a) around noon (b) at night (c) early morning (d) late evening
20. 20.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) shadow length (b) the same stick (c) the stick kept upright (d) the time of day
21. 21.🧺 Do we need yeast for the shadow clock? (a) not needed (b) needed
22. 22.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) long (b) round (c) missing (d) short
23. 23.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same spot is what we measure. (a) False (b) True
24. 24.True or false: chalk to mark shadows is needed for the shadow clock. (a) True (b) False
25. 25.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) turmeric powder (c) a clock to check (d) chalk to mark shadows
26. 26.🧺 Which of these is needed for the shadow clock? (a) chalk to mark shadows (b) turmeric powder (c) a mirror (d) a balloon
27. 27.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is kept the same? (a) the same stick (b) shadow length (c) the time of day
28. 28.🔍 Which is the odd one out? (a) a book (b) tissue paper (c) a wooden board (d) a steel plate
29. 29.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) a straight stick (c) a clock to check (d) a balloon
30. 30.⚖️ 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 keep it the same (c) we change it
31. 31.True or false: a battery cell is needed for the shadow clock. (a) True (b) False
32. 32.True or false: a mirror is needed for the shadow clock. (a) True (b) False
33. 33.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) up (b) west (c) north (d) east
34. 34.🔦 Which of these is transparent? (a) a wooden board (b) a brick (c) clean water (d) your hand
35. 35.🧺 Do we need a battery cell for the shadow clock? (a) needed (b) not needed
36. 36.⚖️ 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
37. 37.⚖️ 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
38. 38.True or false: a clock to check is not needed for the shadow clock. (a) True (b) False
39. 39.⚖️ 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
40. 40.🔍 Which is the odd one out? (a) butter paper (b) frosted glass (c) a book (d) tissue paper

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