Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 503 · 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 not needed for the shadow clock? (a) chalk to mark shadows (b) turmeric powder (c) a clock to check (d) a straight stick
2. 2.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: shadow length is the one thing we change. (a) True (b) False
3. 3.🔦 Which of these is translucent? (a) butter paper (b) clear plastic film (c) air (d) a steel plate
4. 4.🛟 What should you wear for a long time in the hot sun? (a) a raincoat (b) a cap or hat (c) nothing on your head (d) a woollen sweater
5. 5.🧺 Do we need yeast for the shadow clock? (a) not needed (b) needed
6. 6.True or false: chalk to mark shadows is needed for the shadow clock. (a) True (b) False
7. 7.🛟 While watching shadows outdoors, what must you never do? (a) look straight at the Sun (b) sit in the shade (c) mark with chalk (d) wear a cap
8. 8.🔍 Which is the odd one out? (a) a brick (b) a book (c) air (d) a steel plate
9. 9.🧺 Do we need a balloon for the shadow clock? (a) needed (b) not needed
10. 10.⚖️ 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
11. 11.🔍 Which is the odd one out? (a) a book (b) your hand (c) tissue paper (d) a steel plate
12. 12.⚖️ 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) True (b) False
13. 13.🧺 Which of these is needed for the shadow clock? (a) yeast (b) a battery cell (c) a balloon (d) chalk to mark shadows
14. 14.⚖️ 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 stick kept upright (d) the same stick
15. 15.🔮 Predict: on a fully cloudy day, the sundial ___. (a) does not work well (b) runs faster (c) shows two times (d) works better
16. 16.🧺 Which of these is needed for the shadow clock? (a) a mirror (b) turmeric powder (c) a battery cell (d) a sunny open place
17. 17.True or false: a magnet is not needed for the shadow clock. (a) True (b) False
18. 18.🌞 When is a stick’s shadow the shortest? (a) late evening (b) early morning (c) at night (d) around noon
19. 19.🧺 Do we need a straight stick for the shadow clock? (a) not needed (b) needed
20. 20.🔍 Which is the odd one out? (a) a wooden board (b) clear glass (c) air (d) clear plastic film
21. 21.⚖️ 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 keep it the same (c) we change it
22. 22.🔦 Which of these is opaque? (a) clear glass (b) butter paper (c) clean water (d) a wooden board
23. 23.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a straight stick (c) a balloon (d) chalk to mark shadows
24. 24.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) missing (b) long (c) round (d) short
25. 25.True or false: a sunny open place is not needed for the shadow clock. (a) False (b) True
26. 26.🔦 Is butter paper opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
27. 27.🧺 Which of these is needed for the shadow clock? (a) yeast (b) a battery cell (c) turmeric powder (d) a straight stick
28. 28.🧺 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 sunny open place (d) turmeric powder
29. 29.🧺 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 sunny open place (d) a battery cell
30. 30.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “shadow length”? (a) we measure it (b) we change it (c) we keep it the same
31. 31.🔍 Which is the odd one out? (a) oily paper (b) tissue paper (c) clear glass (d) frosted glass
32. 32.🔦 Which of these is transparent? (a) clear glass (b) oily paper (c) butter paper (d) a steel plate
33. 33.🔍 Which is the odd one out? (a) clear plastic film (b) air (c) frosted glass (d) clear glass
34. 34.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) west (b) north (c) up (d) east
35. 35.🧺 Do we need a magnet for the shadow clock? (a) not needed (b) needed
36. 36.🔦 Which of these is transparent? (a) your hand (b) a book (c) clear plastic film (d) a brick
37. 37.🌍 Why does the stick’s shadow move during the day? (a) Earth keeps spinning (b) the stick walks (c) the ground slides (d) the stick grows
38. 38.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a magnet (b) chalk to mark shadows (c) a sunny open place (d) a straight stick
39. 39.🔍 Which is the odd one out? (a) a wooden board (b) a brick (c) butter paper (d) a steel plate
40. 40.True or false: a mirror is not needed for the shadow clock. (a) True (b) False

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