Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 116 · 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 opaque? (a) your hand (b) oily paper (c) frosted glass (d) tissue paper
2. 2.🧺 Which of these is needed for the shadow clock? (a) a straight stick (b) a mirror (c) a battery cell (d) a magnet
3. 3.🛟 While watching shadows outdoors, what must you never do? (a) wear a cap (b) sit in the shade (c) mark with chalk (d) look straight at the Sun
4. 4.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the time of day”? (a) we change it (b) we measure it (c) we keep it the same
5. 5.⚖️ 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
6. 6.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) the stick kept upright (b) the same stick (c) shadow length (d) the same spot
7. 7.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the stick kept upright is what we measure. (a) True (b) False
8. 8.🔦 Which of these is translucent? (a) clear glass (b) a steel plate (c) air (d) tissue paper
9. 9.🔦 Is a brick opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
10. 10.⚖️ 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 measure it (c) we keep it the same
11. 11.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) a balloon (c) a straight stick (d) a clock to check
12. 12.🌍 Why does the stick’s shadow move during the day? (a) the ground slides (b) Earth keeps spinning (c) the stick walks (d) the stick grows
13. 13.True or false: a sunny open place is needed for the shadow clock. (a) False (b) True
14. 14.📘 Why does a shadow form? (a) light bends round it (b) the object is cold (c) the ground is dark (d) an object blocks light
15. 15.⚖️ 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
16. 16.🔍 Which is the odd one out? (a) tissue paper (b) a wooden board (c) a brick (d) a steel plate
17. 17.⚖️ 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 spot (b) the stick kept upright (c) the time of day (d) the same stick
18. 18.True or false: a mirror is needed for the shadow clock. (a) False (b) True
19. 19.🛟 What should you wear for a long time in the hot sun? (a) a woollen sweater (b) a cap or hat (c) a raincoat (d) nothing on your head
20. 20.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) brighter (b) smaller (c) coloured (d) bigger
21. 21.True or false: frosted glass is translucent. (a) False (b) True
22. 22.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) round (b) missing (c) long (d) short
23. 23.True or false: a steel plate is opaque. (a) False (b) True
24. 24.🧺 Do we need a magnet for the shadow clock? (a) not needed (b) needed
25. 25.True or false: a straight stick is needed for the shadow clock. (a) True (b) False
26. 26.🔍 Which is the odd one out? (a) butter paper (b) clean water (c) clear glass (d) clear plastic film
27. 27.⚖️ 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
28. 28.🧺 Do we need a straight stick for the shadow clock? (a) not needed (b) needed
29. 29.⚖️ 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
30. 30.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) west (b) up (c) east (d) north
31. 31.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a battery cell (c) a clock to check (d) a sunny open place
32. 32.🔍 Which is the odd one out? (a) a book (b) frosted glass (c) a steel plate (d) a wooden board
33. 33.🧺 Which of these is needed for the shadow clock? (a) a clock to check (b) yeast (c) a mirror (d) a magnet
34. 34.True or false: chalk to mark shadows is not needed for the shadow clock. (a) False (b) True
35. 35.🔦 Is a steel plate opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
36. 36.⚖️ 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
37. 37.🔍 Which is the odd one out? (a) oily paper (b) frosted glass (c) tissue paper (d) a wooden board
38. 38.🔦 Is tissue paper opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
39. 39.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) a clock to check (c) a magnet (d) a straight stick
40. 40.🕰️ What is a sundial used for? (a) weighing things (b) measuring rain (c) telling the time (d) making rainbows

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