Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 538 · 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? What do we do with “the stick kept upright”? (a) we change it (b) we keep it the same (c) we measure it
2. 2.⚖️ 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
3. 3.🛟 What should you wear for a long time in the hot sun? (a) nothing on your head (b) a raincoat (c) a woollen sweater (d) a cap or hat
4. 4.⚖️ 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 stick kept upright (c) shadow length (d) the same stick
5. 5.🔦 Which of these is translucent? (a) a wooden board (b) oily paper (c) a book (d) clear glass
6. 6.🧺 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 magnet (d) a clock to check
7. 7.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) north (b) up (c) west (d) east
8. 8.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) missing (b) round (c) short (d) long
9. 9.True or false: a balloon is needed for the shadow clock. (a) True (b) False
10. 10.🔍 Which is the odd one out? (a) tissue paper (b) butter paper (c) air (d) oily paper
11. 11.🔦 Is a steel plate opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
12. 12.True or false: chalk to mark shadows is needed for the shadow clock. (a) False (b) True
13. 13.🌞 When is a stick’s shadow the shortest? (a) around noon (b) at night (c) late evening (d) early morning
14. 14.🔍 Which is the odd one out? (a) clear plastic film (b) air (c) your hand (d) clear glass
15. 15.⚖️ 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 stick kept upright
16. 16.🧺 Do we need chalk to mark shadows for the shadow clock? (a) not needed (b) needed
17. 17.True or false: a battery cell is needed for the shadow clock. (a) False (b) True
18. 18.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) coloured (b) bigger (c) smaller (d) brighter
19. 19.🧺 Which of these is needed for the shadow clock? (a) a battery cell (b) a straight stick (c) turmeric powder (d) a balloon
20. 20.🔦 Is frosted glass opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
21. 21.🔍 Which is the odd one out? (a) clear plastic film (b) tissue paper (c) butter paper (d) frosted glass
22. 22.🔦 Is oily paper opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
23. 23.True or false: a magnet is needed for the shadow clock. (a) False (b) True
24. 24.True or false: a balloon is not needed for the shadow clock. (a) True (b) False
25. 25.⚖️ 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
26. 26.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is kept the same. (a) True (b) False
27. 27.⚖️ 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
28. 28.True or false: a mirror is needed for the shadow clock. (a) True (b) False
29. 29.⚖️ 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) True (b) False
30. 30.🔦 Which of these is transparent? (a) air (b) butter paper (c) frosted glass (d) oily paper
31. 31.True or false: a straight stick is not needed for the shadow clock. (a) False (b) True
32. 32.🧺 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 clock to check
33. 33.⚖️ 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
34. 34.🔦 Is clean water opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
35. 35.🔍 Which is the odd one out? (a) a brick (b) clean water (c) air (d) clear glass
36. 36.⚖️ 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) False (b) True
37. 37.🧺 Which of these is not needed for the shadow clock? (a) yeast (b) a clock to check (c) a straight stick (d) chalk to mark shadows
38. 38.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) a clock to check (c) a straight stick (d) a magnet
39. 39.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a sunny open place (c) a straight stick (d) a balloon
40. 40.🧺 Do we need a straight stick for the shadow clock? (a) not needed (b) needed

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