Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 321 · 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? Which of these is the one thing we change? (a) the time of day (b) the same spot (c) the same stick (d) the stick kept upright
2. 2.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “shadow length”? (a) we keep it the same (b) we change it (c) we measure it
3. 3.🧺 Which of these is needed for the shadow clock? (a) a magnet (b) yeast (c) a mirror (d) chalk to mark shadows
4. 4.🧺 Do we need a magnet for the shadow clock? (a) not needed (b) needed
5. 5.🧺 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 battery cell
6. 6.⚖️ 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
7. 7.🔦 Which of these is translucent? (a) air (b) a steel plate (c) clear glass (d) tissue paper
8. 8.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same stick”? (a) we keep it the same (b) we measure it (c) we change it
9. 9.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) round (b) short (c) missing (d) long
10. 10.🛟 What should you wear for a long time in the hot sun? (a) a raincoat (b) a woollen sweater (c) nothing on your head (d) a cap or hat
11. 11.🧺 Do we need turmeric powder for the shadow clock? (a) needed (b) not needed
12. 12.True or false: a balloon is not needed for the shadow clock. (a) False (b) True
13. 13.🔦 Is a book opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
14. 14.🧺 Which of these is needed for the shadow clock? (a) yeast (b) a magnet (c) a mirror (d) a straight stick
15. 15.📘 Why does a shadow form? (a) the object is cold (b) light bends round it (c) the ground is dark (d) an object blocks light
16. 16.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) yeast (c) a clock to check (d) chalk to mark shadows
17. 17.🌍 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
18. 18.🔍 Which is the odd one out? (a) a brick (b) clean water (c) a wooden board (d) a steel plate
19. 19.⚖️ 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
20. 20.🌞 When is a stick’s shadow the shortest? (a) late evening (b) around noon (c) at night (d) early morning
21. 21.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) chalk to mark shadows (c) a sunny open place (d) a battery cell
22. 22.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the stick kept upright”? (a) we keep it the same (b) we change it (c) we measure it
23. 23.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a sunny open place (c) a magnet (d) chalk to mark shadows
24. 24.🧺 Which of these is needed for the shadow clock? (a) a mirror (b) a clock to check (c) a magnet (d) turmeric powder
25. 25.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a mirror (b) a straight stick (c) a clock to check (d) chalk to mark shadows
26. 26.🧺 Which of these is not needed for the shadow clock? (a) a clock to check (b) a straight stick (c) chalk to mark shadows (d) turmeric powder
27. 27.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same spot is the one thing we change. (a) True (b) False
28. 28.🔦 Which of these is opaque? (a) your hand (b) air (c) frosted glass (d) butter paper
29. 29.⚖️ 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
30. 30.🔮 Predict: on a fully cloudy day, the sundial ___. (a) does not work well (b) works better (c) runs faster (d) shows two times
31. 31.🔦 Is a wooden board 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? True or false: shadow length is what we measure. (a) True (b) False
33. 33.🔍 Which is the odd one out? (a) a book (b) a wooden board (c) butter paper (d) your hand
34. 34.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) turmeric powder (c) a clock to check (d) chalk to mark shadows
35. 35.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) brighter (b) coloured (c) bigger (d) smaller
36. 36.🔦 Is tissue paper opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
37. 37.🔦 Which of these is translucent? (a) a brick (b) butter paper (c) clean water (d) a wooden board
38. 38.🔦 Which of these is translucent? (a) a wooden board (b) a brick (c) clear glass (d) frosted glass
39. 39.🧺 Do we need a straight stick for the shadow clock? (a) needed (b) not needed
40. 40.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) a clock to check (c) a sunny open place (d) yeast

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