Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 761 · 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.🔦 Is your hand opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
2. 2.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a battery cell (c) a straight stick (d) chalk to mark shadows
3. 3.🔦 Which of these is translucent? (a) a steel plate (b) a brick (c) clean water (d) butter paper
4. 4.🧺 Which of these is not needed for the shadow clock? (a) a balloon (b) a sunny open place (c) a clock to check (d) chalk to mark shadows
5. 5.True or false: a mirror is not needed for the shadow clock. (a) False (b) True
6. 6.⚖️ 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
7. 7.🔦 Which of these is opaque? (a) oily paper (b) clean water (c) butter paper (d) a brick
8. 8.🔦 Which of these is translucent? (a) a brick (b) a steel plate (c) clear plastic film (d) oily paper
9. 9.⚖️ 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
10. 10.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) smaller (b) coloured (c) brighter (d) bigger
11. 11.🔦 Which of these is transparent? (a) butter paper (b) clear glass (c) a book (d) tissue paper
12. 12.🧺 Which of these is not needed for the shadow clock? (a) a battery cell (b) a straight stick (c) chalk to mark shadows (d) a clock to check
13. 13.🛟 What should you wear for a long time in the hot sun? (a) a woollen sweater (b) nothing on your head (c) a raincoat (d) a cap or hat
14. 14.🔦 Is a wooden board opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
15. 15.🧺 Which of these is needed for the shadow clock? (a) a mirror (b) turmeric powder (c) a clock to check (d) a battery cell
16. 16.🌞 When is a stick’s shadow the shortest? (a) at night (b) around noon (c) late evening (d) early morning
17. 17.⚖️ 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 measure it (c) we keep it the same
18. 18.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is the one thing we change? (a) the same stick (b) the time of day (c) the same spot (d) the stick kept upright
19. 19.🔦 Is frosted glass opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
20. 20.🔮 Predict: on a fully cloudy day, the sundial ___. (a) shows two times (b) works better (c) does not work well (d) runs faster
21. 21.🌍 Why does the stick’s shadow move during the day? (a) the ground slides (b) Earth keeps spinning (c) the stick grows (d) the stick walks
22. 22.🧺 Which of these is needed for the shadow clock? (a) turmeric powder (b) a straight stick (c) a magnet (d) a mirror
23. 23.🔦 Which of these is translucent? (a) frosted glass (b) clear plastic film (c) a wooden board (d) a steel plate
24. 24.🔦 Which of these is transparent? (a) clear plastic film (b) butter paper (c) a steel plate (d) frosted glass
25. 25.True or false: a magnet is needed for the shadow clock. (a) True (b) False
26. 26.🧺 Which of these is not needed for the shadow clock? (a) yeast (b) a sunny open place (c) a straight stick (d) a clock to check
27. 27.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) west (b) north (c) east (d) up
28. 28.🔍 Which is the odd one out? (a) your hand (b) air (c) clear glass (d) clear plastic film
29. 29.⚖️ 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
30. 30.🔍 Which is the odd one out? (a) a brick (b) clear glass (c) clean water (d) clear plastic film
31. 31.🛟 While watching shadows outdoors, what must you never do? (a) look straight at the Sun (b) wear a cap (c) sit in the shade (d) mark with chalk
32. 32.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) missing (b) round (c) short (d) long
33. 33.🧺 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 magnet (d) chalk to mark shadows
34. 34.⚖️ 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) False (b) True
35. 35.🧺 Do we need a clock to check for the shadow clock? (a) not needed (b) needed
36. 36.🔍 Which is the odd one out? (a) frosted glass (b) a book (c) a wooden board (d) a steel plate
37. 37.🧺 Do we need turmeric powder for the shadow clock? (a) needed (b) not needed
38. 38.⚖️ 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
39. 39.🔦 Which of these is opaque? (a) clear plastic film (b) a wooden board (c) tissue paper (d) butter paper
40. 40.🧺 Do we need chalk to mark shadows for the shadow clock? (a) needed (b) not needed

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