Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 842 · 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) bigger (b) smaller (c) coloured (d) brighter
2. 2.🔦 Which of these is opaque? (a) clear plastic film (b) a wooden board (c) butter paper (d) oily paper
3. 3.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) the time of day (b) the same stick (c) shadow length (d) the same spot
4. 4.🔦 Which of these is opaque? (a) frosted glass (b) clear plastic film (c) oily paper (d) your hand
5. 5.🌍 Why does the stick’s shadow move during the day? (a) the stick grows (b) the ground slides (c) Earth keeps spinning (d) the stick walks
6. 6.🧺 Which of these is needed for the shadow clock? (a) a straight stick (b) a magnet (c) yeast (d) a mirror
7. 7.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a straight stick (c) chalk to mark shadows (d) a mirror
8. 8.⚖️ 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
9. 9.True or false: a sunny open place is needed for the shadow clock. (a) False (b) True
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) the same stick (c) shadow length
11. 11.🕰️ What is a sundial used for? (a) measuring rain (b) making rainbows (c) weighing things (d) telling the time
12. 12.🔦 Which of these is transparent? (a) your hand (b) air (c) butter paper (d) a steel plate
13. 13.🛟 While watching shadows outdoors, what must you never do? (a) look straight at the Sun (b) mark with chalk (c) sit in the shade (d) wear a cap
14. 14.True or false: a wooden board is opaque. (a) False (b) True
15. 15.🔦 Is a steel plate opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
16. 16.🔍 Which is the odd one out? (a) a brick (b) tissue paper (c) butter paper (d) frosted glass
17. 17.True or false: a battery cell is not needed for the shadow clock. (a) True (b) False
18. 18.📘 Why does a shadow form? (a) an object blocks light (b) the ground is dark (c) light bends round it (d) the object is cold
19. 19.🔦 Is air opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
20. 20.⚖️ 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
21. 21.🧺 Do we need a clock to check for the shadow clock? (a) needed (b) not needed
22. 22.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the time of day”? (a) we measure it (b) we keep it the same (c) we change it
23. 23.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) a straight stick (c) a balloon (d) a sunny open place
24. 24.🔦 Which of these is transparent? (a) frosted glass (b) butter paper (c) a brick (d) clear plastic film
25. 25.True or false: air is transparent. (a) False (b) True
26. 26.🛟 What should you wear for a long time in the hot sun? (a) nothing on your head (b) a cap or hat (c) a woollen sweater (d) a raincoat
27. 27.True or false: a straight stick is needed for the shadow clock. (a) True (b) False
28. 28.🧺 Which of these is not needed for the shadow clock? (a) yeast (b) a sunny open place (c) a clock to check (d) a straight stick
29. 29.⚖️ 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
30. 30.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) a straight stick (c) a magnet (d) a clock to check
31. 31.True or false: a steel plate is translucent. (a) True (b) False
32. 32.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) turmeric powder (c) a sunny open place (d) chalk to mark shadows
33. 33.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) yeast (b) a clock to check (c) a straight stick (d) a sunny open place
34. 34.🔦 Which of these is transparent? (a) clean water (b) frosted glass (c) a steel plate (d) tissue paper
35. 35.🔦 Which of these is opaque? (a) clear plastic film (b) air (c) tissue paper (d) a steel plate
36. 36.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) short (b) missing (c) long (d) round
37. 37.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) a clock to check (c) a mirror (d) chalk to mark shadows
38. 38.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) north (b) up (c) east (d) west
39. 39.🔍 Which is the odd one out? (a) clear glass (b) clear plastic film (c) a wooden board (d) air
40. 40.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “shadow length”? (a) we measure it (b) we keep it the same (c) we change it

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