Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 983 · 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 needed for the shadow clock? (a) a balloon (b) turmeric powder (c) a sunny open place (d) a battery cell
2. 2.True or false: a sunny open place is needed for the shadow clock. (a) True (b) False
3. 3.True or false: a battery cell is needed for the shadow clock. (a) True (b) False
4. 4.🔍 Which is the odd one out? (a) a steel plate (b) clear plastic film (c) a wooden board (d) a book
5. 5.True or false: turmeric powder is needed for the shadow clock. (a) True (b) False
6. 6.🧺 Which of these is needed for the shadow clock? (a) yeast (b) a straight stick (c) turmeric powder (d) a balloon
7. 7.🧺 Do we need chalk to mark shadows for the shadow clock? (a) needed (b) not needed
8. 8.🧺 Which of these is needed for the shadow clock? (a) turmeric powder (b) yeast (c) a magnet (d) a clock to check
9. 9.🛟 While watching shadows outdoors, what must you never do? (a) mark with chalk (b) sit in the shade (c) look straight at the Sun (d) wear a cap
10. 10.⚖️ 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
11. 11.🌍 Why does the stick’s shadow move during the day? (a) the stick walks (b) the ground slides (c) the stick grows (d) Earth keeps spinning
12. 12.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) west (b) up (c) east (d) north
13. 13.True or false: turmeric powder is not needed for the shadow clock. (a) False (b) True
14. 14.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) coloured (b) bigger (c) brighter (d) smaller
15. 15.🔍 Which is the odd one out? (a) oily paper (b) tissue paper (c) a book (d) butter paper
16. 16.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) shadow length (b) the same stick (c) the time of day (d) the stick kept upright
17. 17.🧺 Which of these is needed for the shadow clock? (a) a magnet (b) turmeric powder (c) chalk to mark shadows (d) yeast
18. 18.⚖️ 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) True (b) False
19. 19.🧺 Which of these is not needed for the shadow clock? (a) yeast (b) chalk to mark shadows (c) a straight stick (d) a sunny open place
20. 20.🧺 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 balloon (d) chalk to mark shadows
21. 21.🔦 Which of these is transparent? (a) clear glass (b) a wooden board (c) a book (d) a steel plate
22. 22.🧺 Do we need a battery cell for the shadow clock? (a) needed (b) not needed
23. 23.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the time of day is the one thing we change. (a) True (b) False
24. 24.True or false: a clock to check is needed for the shadow clock. (a) False (b) True
25. 25.🔮 Predict: on a fully cloudy day, the sundial ___. (a) shows two times (b) works better (c) runs faster (d) does not work well
26. 26.🔦 Which of these is transparent? (a) a wooden board (b) clean water (c) butter paper (d) frosted glass
27. 27.🔦 Which of these is translucent? (a) a book (b) butter paper (c) clear glass (d) your hand
28. 28.⚖️ 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 measure it (c) we change it
29. 29.⚖️ 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 stick kept upright (d) shadow length
30. 30.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “shadow length”? (a) we change it (b) we measure it (c) we keep it the same
31. 31.True or false: a straight stick is needed for the shadow clock. (a) False (b) True
32. 32.🛟 What should you wear for a long time in the hot sun? (a) a cap or hat (b) nothing on your head (c) a raincoat (d) a woollen sweater
33. 33.🔦 Which of these is translucent? (a) tissue paper (b) clean water (c) clear glass (d) air
34. 34.📘 Why does a shadow form? (a) light bends round it (b) an object blocks light (c) the ground is dark (d) the object is cold
35. 35.🧺 Do we need a magnet for the shadow clock? (a) needed (b) not needed
36. 36.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a battery cell (b) chalk to mark shadows (c) a clock to check (d) a straight stick
37. 37.🌞 When is a stick’s shadow the shortest? (a) early morning (b) late evening (c) around noon (d) at night
38. 38.True or false: your hand is translucent. (a) True (b) False
39. 39.🧺 Do we need turmeric powder for the shadow clock? (a) needed (b) not needed
40. 40.🔦 Which of these is opaque? (a) clean water (b) oily paper (c) butter paper (d) your hand

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