Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 652 · 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.True or false: a magnet is needed for the shadow clock. (a) True (b) False
2. 2.⚖️ 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 stick
3. 3.🌍 Why does the stick’s shadow move during the day? (a) the stick grows (b) the stick walks (c) the ground slides (d) Earth keeps spinning
4. 4.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) short (b) missing (c) long (d) round
5. 5.📘 Why does a shadow form? (a) the ground is dark (b) light bends round it (c) an object blocks light (d) the object is cold
6. 6.True or false: a battery cell is needed for the shadow clock. (a) True (b) False
7. 7.⚖️ 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) False (b) True
8. 8.True or false: frosted glass is transparent. (a) True (b) False
9. 9.⚖️ 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
10. 10.⚖️ 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 keep it the same (c) we measure it
11. 11.🔦 Which of these is transparent? (a) a brick (b) a steel plate (c) frosted glass (d) clear glass
12. 12.⚖️ 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
13. 13.🧺 Which of these is not needed for the shadow clock? (a) a battery cell (b) chalk to mark shadows (c) a straight stick (d) a clock to check
14. 14.🔦 Is frosted glass opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
15. 15.🔍 Which is the odd one out? (a) tissue paper (b) frosted glass (c) your hand (d) butter paper
16. 16.True or false: air is opaque. (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 keep it the same (b) we change it (c) we measure it
18. 18.🧺 Which of these is needed for the shadow clock? (a) a battery cell (b) a straight stick (c) yeast (d) a mirror
19. 19.🌞 When is a stick’s shadow the shortest? (a) around noon (b) at night (c) late evening (d) early morning
20. 20.🔍 Which is the odd one out? (a) clear glass (b) a steel plate (c) a wooden board (d) a brick
21. 21.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) chalk to mark shadows (c) a sunny open place (d) yeast
22. 22.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) a sunny open place (c) chalk to mark shadows (d) a magnet
23. 23.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) bigger (b) smaller (c) brighter (d) coloured
24. 24.🔮 Predict: on a fully cloudy day, the sundial ___. (a) works better (b) runs faster (c) shows two times (d) does not work well
25. 25.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) chalk to mark shadows (c) turmeric powder (d) a sunny open place
26. 26.🧺 Do we need a straight stick for the shadow clock? (a) not needed (b) needed
27. 27.⚖️ 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
28. 28.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is the one thing we change. (a) True (b) False
29. 29.True or false: frosted glass is translucent. (a) False (b) True
30. 30.🧺 Which of these is needed for the shadow clock? (a) a balloon (b) a magnet (c) a clock to check (d) turmeric powder
31. 31.True or false: a clock to check is not needed for the shadow clock. (a) True (b) False
32. 32.🛟 What should you wear for a long time in the hot sun? (a) a woollen sweater (b) nothing on your head (c) a raincoat (d) a cap or hat
33. 33.🔦 Is your hand opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
34. 34.🔦 Is oily paper opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
35. 35.🕰️ What is a sundial used for? (a) telling the time (b) making rainbows (c) weighing things (d) measuring rain
36. 36.⚖️ 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
37. 37.True or false: a brick is translucent. (a) False (b) True
38. 38.🔍 Which is the odd one out? (a) clear plastic film (b) a steel plate (c) clean water (d) air
39. 39.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a mirror (c) chalk to mark shadows (d) a sunny open place
40. 40.🔦 Which of these is transparent? (a) butter paper (b) frosted glass (c) clean water (d) a steel plate

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