Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 866 · 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.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) missing (b) short (c) long (d) round
2. 2.🛟 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
3. 3.🔦 Is a steel plate opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
4. 4.True or false: a wooden board is opaque. (a) False (b) True
5. 5.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) up (b) west (c) east (d) north
6. 6.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) brighter (b) bigger (c) coloured (d) smaller
7. 7.True or false: a clock to check is needed for the shadow clock. (a) True (b) False
8. 8.🧺 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 balloon (d) a sunny open place
9. 9.🛟 While watching shadows outdoors, what must you never do? (a) sit in the shade (b) wear a cap (c) mark with chalk (d) look straight at the Sun
10. 10.⚖️ 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) the same stick (d) the same spot
11. 11.🔮 Predict: on a fully cloudy day, the sundial ___. (a) shows two times (b) works better (c) runs faster (d) does not work well
12. 12.🌍 Why does the stick’s shadow move during the day? (a) the stick walks (b) the stick grows (c) the ground slides (d) Earth keeps spinning
13. 13.🔦 Is tissue paper opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
14. 14.True or false: a book is opaque. (a) False (b) True
15. 15.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the time of day”? (a) we keep it the same (b) we change it (c) we measure it
16. 16.True or false: your hand is opaque. (a) True (b) False
17. 17.🔦 Which of these is opaque? (a) butter paper (b) tissue paper (c) clear glass (d) a book
18. 18.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a magnet (c) chalk to mark shadows (d) a sunny open place
19. 19.🔦 Is clear plastic film opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
20. 20.True or false: a steel plate is opaque. (a) False (b) True
21. 21.⚖️ 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 keep it the same (c) we measure it
22. 22.🔦 Which of these is transparent? (a) frosted glass (b) clear glass (c) a wooden board (d) a steel plate
23. 23.🔦 Which of these is transparent? (a) a steel plate (b) air (c) frosted glass (d) a wooden board
24. 24.🔦 Is your hand opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
25. 25.True or false: a sunny open place is needed for the shadow clock. (a) False (b) True
26. 26.🧺 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 sunny open place (d) yeast
27. 27.🔍 Which is the odd one out? (a) clear glass (b) butter paper (c) tissue paper (d) frosted glass
28. 28.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) a clock to check (c) a battery cell (d) a sunny open place
29. 29.📘 Why does a shadow form? (a) the ground is dark (b) the object is cold (c) light bends round it (d) an object blocks light
30. 30.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same spot is what we measure. (a) True (b) False
31. 31.🔦 Is clean water opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
32. 32.⚖️ 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 same spot
33. 33.🧺 Which of these is needed for the shadow clock? (a) turmeric powder (b) a balloon (c) a straight stick (d) a battery cell
34. 34.🧺 Do we need chalk to mark shadows for the shadow clock? (a) needed (b) not needed
35. 35.🧺 Do we need a straight stick for the shadow clock? (a) not needed (b) needed
36. 36.True or false: a battery cell is needed for the shadow clock. (a) False (b) True
37. 37.🔦 Which of these is transparent? (a) a brick (b) a wooden board (c) clear plastic film (d) a steel plate
38. 38.🧺 Do we need turmeric powder for the shadow clock? (a) not needed (b) needed
39. 39.True or false: a straight stick is needed for the shadow clock. (a) False (b) True
40. 40.🔦 Which of these is transparent? (a) clean water (b) butter paper (c) tissue paper (d) oily paper

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