Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 940 · 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.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) a mirror (c) a sunny open place (d) a straight stick
2. 2.🔦 Is frosted glass opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
3. 3.🧺 Which of these is needed for the shadow clock? (a) a magnet (b) a balloon (c) a sunny open place (d) turmeric powder
4. 4.True or false: a straight stick is needed for the shadow clock. (a) True (b) False
5. 5.True or false: a clock to check is needed for the shadow clock. (a) False (b) True
6. 6.📘 Why does a shadow form? (a) light bends round it (b) an object blocks light (c) the object is cold (d) the ground is dark
7. 7.True or false: air is translucent. (a) True (b) False
8. 8.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) round (b) long (c) missing (d) short
9. 9.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is what we measure. (a) False (b) True
10. 10.⚖️ 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) False (b) True
11. 11.🔍 Which is the odd one out? (a) oily paper (b) clear plastic film (c) butter paper (d) frosted glass
12. 12.⚖️ 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) the time of day (d) the same spot
13. 13.🔦 Which of these is translucent? (a) butter paper (b) a wooden board (c) clear plastic film (d) clear glass
14. 14.🕰️ What is a sundial used for? (a) measuring rain (b) weighing things (c) making rainbows (d) telling the time
15. 15.🔦 Which of these is opaque? (a) frosted glass (b) butter paper (c) air (d) your hand
16. 16.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same spot is the one thing we change. (a) True (b) False
17. 17.⚖️ 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 keep it the same (c) we measure it
18. 18.🧺 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 balloon
19. 19.🔍 Which is the odd one out? (a) clear glass (b) clear plastic film (c) a brick (d) air
20. 20.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the stick kept upright is kept the same. (a) True (b) False
21. 21.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same spot”? (a) we measure it (b) we change it (c) we keep it the same
22. 22.🧺 Do we need turmeric powder for the shadow clock? (a) needed (b) not needed
23. 23.🔦 Which of these is opaque? (a) air (b) a steel plate (c) butter paper (d) clear glass
24. 24.🌍 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
25. 25.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the stick kept upright is the one thing we change. (a) True (b) False
26. 26.True or false: turmeric powder is not needed for the shadow clock. (a) False (b) True
27. 27.🔮 Predict: on a fully cloudy day, the sundial ___. (a) works better (b) runs faster (c) shows two times (d) does not work well
28. 28.🔦 Is a wooden board opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
29. 29.⚖️ 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 spot (c) shadow length (d) the same stick
30. 30.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same spot is kept the same. (a) False (b) True
31. 31.🧺 Do we need yeast for the shadow clock? (a) not needed (b) needed
32. 32.🛟 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
33. 33.🔍 Which is the odd one out? (a) a steel plate (b) a brick (c) a wooden board (d) butter paper
34. 34.🧺 Which of these is needed for the shadow clock? (a) a magnet (b) a battery cell (c) turmeric powder (d) a clock to check
35. 35.⚖️ 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
36. 36.True or false: clear glass is transparent. (a) True (b) False
37. 37.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) brighter (b) smaller (c) coloured (d) bigger
38. 38.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is kept the same? (a) shadow length (b) the time of day (c) the same spot
39. 39.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) a clock to check (c) yeast (d) chalk to mark shadows
40. 40.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) a straight stick (c) a sunny open place (d) a balloon

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