Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 615 · 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) round (b) missing (c) long (d) short
2. 2.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) coloured (b) bigger (c) brighter (d) smaller
3. 3.⚖️ 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 stick kept upright (c) shadow length (d) the time of day
4. 4.⚖️ 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
5. 5.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a mirror (b) a clock to check (c) a straight stick (d) chalk to mark shadows
6. 6.🔦 Which of these is opaque? (a) a brick (b) air (c) oily paper (d) clear glass
7. 7.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) up (b) north (c) west (d) east
8. 8.⚖️ 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) True (b) False
9. 9.🔍 Which is the odd one out? (a) a steel plate (b) butter paper (c) a brick (d) a book
10. 10.🔦 Is clean water opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
11. 11.🛟 What should you wear for a long time in the hot sun? (a) a cap or hat (b) a raincoat (c) nothing on your head (d) a woollen sweater
12. 12.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) yeast (b) a straight stick (c) chalk to mark shadows (d) a sunny open place
13. 13.🧺 Which of these is not needed for the shadow clock? (a) a clock to check (b) chalk to mark shadows (c) a straight stick (d) a magnet
14. 14.🧺 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
15. 15.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) turmeric powder (b) a straight stick (c) a clock to check (d) a sunny open place
16. 16.⚖️ 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
17. 17.🔦 Which of these is opaque? (a) a wooden board (b) clear glass (c) butter paper (d) clean water
18. 18.🔍 Which is the odd one out? (a) a wooden board (b) a steel plate (c) your hand (d) air
19. 19.🧺 Do we need a sunny open place for the shadow clock? (a) not needed (b) needed
20. 20.🔦 Is a steel plate opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
21. 21.🔍 Which is the odd one out? (a) clear plastic film (b) air (c) clean water (d) a brick
22. 22.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same spot is kept the same. (a) True (b) False
23. 23.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) chalk to mark shadows (c) a straight stick (d) a magnet
24. 24.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) a straight stick (c) turmeric powder (d) a clock to check
25. 25.🧺 Which of these is needed for the shadow clock? (a) a sunny open place (b) a mirror (c) a battery cell (d) turmeric powder
26. 26.⚖️ 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 stick
27. 27.🛟 While watching shadows outdoors, what must you never do? (a) wear a cap (b) mark with chalk (c) sit in the shade (d) look straight at the Sun
28. 28.🔍 Which is the odd one out? (a) tissue paper (b) clear plastic film (c) butter paper (d) oily paper
29. 29.🔍 Which is the odd one out? (a) a brick (b) clean water (c) a wooden board (d) a steel plate
30. 30.True or false: a sunny open place is not needed for the shadow clock. (a) True (b) False
31. 31.True or false: yeast is needed for the shadow clock. (a) False (b) True
32. 32.🧺 Do we need a clock to check for the shadow clock? (a) not needed (b) needed
33. 33.True or false: a magnet is not needed for the shadow clock. (a) False (b) True
34. 34.🔍 Which is the odd one out? (a) clean water (b) clear plastic film (c) a wooden board (d) air
35. 35.🌍 Why does the stick’s shadow move during the day? (a) the stick walks (b) Earth keeps spinning (c) the ground slides (d) the stick grows
36. 36.🔍 Which is the odd one out? (a) a wooden board (b) a steel plate (c) tissue paper (d) a brick
37. 37.⚖️ 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 change it (c) we measure it
38. 38.📘 Why does a shadow form? (a) the ground is dark (b) light bends round it (c) the object is cold (d) an object blocks light
39. 39.🧺 Which of these is not needed for the shadow clock? (a) a clock to check (b) a straight stick (c) a sunny open place (d) yeast
40. 40.🔦 Which of these is translucent? (a) your hand (b) tissue paper (c) a brick (d) a book

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