Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 531 · 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: you move a torch closer to your hand. The shadow on the wall gets ___. (a) smaller (b) brighter (c) bigger (d) coloured
2. 2.🧺 Which of these is needed for the shadow clock? (a) a mirror (b) turmeric powder (c) chalk to mark shadows (d) a magnet
3. 3.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) missing (b) round (c) long (d) short
4. 4.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) a sunny open place (c) a straight stick (d) a magnet
5. 5.🔍 Which is the odd one out? (a) air (b) clear glass (c) clean water (d) butter paper
6. 6.🛟 What should you wear for a long time in the hot sun? (a) nothing on your head (b) a woollen sweater (c) a cap or hat (d) a raincoat
7. 7.True or false: a sunny open place is needed for the shadow clock. (a) False (b) True
8. 8.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is what we measure. (a) True (b) False
9. 9.🧺 Which of these is needed for the shadow clock? (a) a sunny open place (b) a mirror (c) a battery cell (d) a balloon
10. 10.True or false: a clock to check is not needed for the shadow clock. (a) True (b) False
11. 11.True or false: your hand is translucent. (a) True (b) False
12. 12.⚖️ 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 time of day (c) the same stick (d) the same spot
13. 13.🔍 Which is the odd one out? (a) frosted glass (b) tissue paper (c) butter paper (d) a book
14. 14.True or false: chalk to mark shadows is not needed for the shadow clock. (a) True (b) False
15. 15.True or false: clear plastic film is transparent. (a) False (b) True
16. 16.🕰️ What is a sundial used for? (a) measuring rain (b) telling the time (c) weighing things (d) making rainbows
17. 17.🧺 Which of these is needed for the shadow clock? (a) a magnet (b) a mirror (c) a straight stick (d) yeast
18. 18.🧺 Do we need a straight stick for the shadow clock? (a) needed (b) not needed
19. 19.⚖️ 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 keep it the same (c) we measure it
20. 20.🧺 Which of these is needed for the shadow clock? (a) a magnet (b) a clock to check (c) turmeric powder (d) a battery cell
21. 21.🧺 Do we need a mirror for the shadow clock? (a) not needed (b) needed
22. 22.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) a clock to check (c) a mirror (d) a straight stick
23. 23.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is the one thing we change? (a) shadow length (b) the time of day (c) the same stick (d) the stick kept upright
24. 24.True or false: air is transparent. (a) False (b) True
25. 25.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a sunny open place (c) yeast (d) chalk to mark shadows
26. 26.True or false: a straight stick is needed for the shadow clock. (a) False (b) True
27. 27.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is kept the same. (a) True (b) False
28. 28.🧺 Which of these is not needed for the shadow clock? (a) a magnet (b) a straight stick (c) a clock to check (d) a sunny open place
29. 29.🔦 Is oily paper opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
30. 30.🛟 While watching shadows outdoors, what must you never do? (a) wear a cap (b) sit in the shade (c) look straight at the Sun (d) mark with chalk
31. 31.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same spot”? (a) we change it (b) we keep it the same (c) we measure it
32. 32.🔦 Is a steel plate opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
33. 33.⚖️ 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
34. 34.🧺 Do we need yeast for the shadow clock? (a) not needed (b) needed
35. 35.True or false: a balloon is needed for the shadow clock. (a) True (b) False
36. 36.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) east (b) west (c) up (d) north
37. 37.📘 Why does a shadow form? (a) light bends round it (b) the ground is dark (c) the object is cold (d) an object blocks light
38. 38.True or false: oily paper is translucent. (a) True (b) False
39. 39.🔍 Which is the odd one out? (a) a wooden board (b) a book (c) a steel plate (d) clear plastic film
40. 40.🌍 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

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