Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 884 · 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.🔦 Is a brick opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
2. 2.🧺 Do we need a balloon for the shadow clock? (a) needed (b) not needed
3. 3.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) a clock to check (c) a sunny open place (d) a battery cell
4. 4.🌞 When is a stick’s shadow the shortest? (a) late evening (b) around noon (c) early morning (d) at night
5. 5.🔍 Which is the odd one out? (a) butter paper (b) frosted glass (c) clean water (d) oily paper
6. 6.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) a clock to check (c) yeast (d) a straight stick
7. 7.🧺 Which of these is needed for the shadow clock? (a) turmeric powder (b) a sunny open place (c) yeast (d) a mirror
8. 8.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) up (b) east (c) west (d) north
9. 9.🧺 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) turmeric powder
10. 10.🔦 Is frosted glass opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
11. 11.🔍 Which is the odd one out? (a) clear glass (b) air (c) tissue paper (d) clear plastic film
12. 12.📘 Why does a shadow form? (a) the object is cold (b) the ground is dark (c) an object blocks light (d) light bends round it
13. 13.🔦 Is clear glass opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
14. 14.🔦 Is tissue paper opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
15. 15.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) a balloon (c) a clock to check (d) chalk to mark shadows
16. 16.🔦 Which of these is transparent? (a) oily paper (b) tissue paper (c) a brick (d) clear glass
17. 17.🕰️ What is a sundial used for? (a) making rainbows (b) measuring rain (c) telling the time (d) weighing things
18. 18.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) smaller (b) bigger (c) brighter (d) coloured
19. 19.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) a clock to check (c) a straight stick (d) a magnet
20. 20.⚖️ 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 spot
21. 21.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the time of day”? (a) we keep it the same (b) we change it (c) we measure it
22. 22.⚖️ 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 stick kept upright (c) the same spot (d) shadow length
23. 23.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a clock to check (c) a sunny open place (d) a mirror
24. 24.True or false: a wooden board is opaque. (a) True (b) False
25. 25.🧺 Do we need a clock to check for the shadow clock? (a) needed (b) not needed
26. 26.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) a straight stick (c) chalk to mark shadows (d) turmeric powder
27. 27.🔍 Which is the odd one out? (a) clear glass (b) butter paper (c) tissue paper (d) oily paper
28. 28.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a sunny open place (c) a battery cell (d) a clock to check
29. 29.True or false: a battery cell is not needed for the shadow clock. (a) True (b) False
30. 30.🧺 Do we need turmeric powder for the shadow clock? (a) needed (b) not needed
31. 31.🔦 Which of these is transparent? (a) air (b) a steel plate (c) a wooden board (d) tissue paper
32. 32.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) long (b) missing (c) short (d) round
33. 33.True or false: tissue paper is transparent. (a) True (b) False
34. 34.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same stick”? (a) we change it (b) we measure it (c) we keep it the same
35. 35.True or false: clean water is transparent. (a) False (b) True
36. 36.🔍 Which is the odd one out? (a) a brick (b) clear glass (c) clear plastic film (d) air
37. 37.⚖️ 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
38. 38.True or false: clear glass is opaque. (a) True (b) False
39. 39.🛟 What should you wear for a long time in the hot sun? (a) a raincoat (b) a woollen sweater (c) nothing on your head (d) a cap or hat
40. 40.True or false: a clock to check is not needed for the shadow clock. (a) True (b) False

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