Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 210 · 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.🧺 Do we need chalk to mark shadows for the shadow clock? (a) needed (b) not needed
2. 2.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) short (b) round (c) missing (d) long
3. 3.🔍 Which is the odd one out? (a) air (b) clear glass (c) your hand (d) clear plastic film
4. 4.True or false: clean water is transparent. (a) True (b) False
5. 5.⚖️ 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
6. 6.True or false: a sunny open place is needed for the shadow clock. (a) False (b) True
7. 7.🛟 While watching shadows outdoors, what must you never do? (a) wear a cap (b) mark with chalk (c) look straight at the Sun (d) sit in the shade
8. 8.🧺 Which of these is needed for the shadow clock? (a) turmeric powder (b) chalk to mark shadows (c) yeast (d) a battery cell
9. 9.True or false: a steel plate is opaque. (a) False (b) True
10. 10.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a balloon (c) a straight stick (d) a sunny open place
11. 11.True or false: a mirror is needed for the shadow clock. (a) True (b) False
12. 12.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a magnet (b) chalk to mark shadows (c) a sunny open place (d) a clock to check
13. 13.⚖️ 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 stick kept upright
14. 14.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) a sunny open place (c) a clock to check (d) a battery cell
15. 15.🧺 Do we need a battery cell for the shadow clock? (a) needed (b) not needed
16. 16.🧺 Which of these is needed for the shadow clock? (a) a mirror (b) a sunny open place (c) yeast (d) a magnet
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 stick (b) the stick kept upright (c) the same spot (d) the time of day
18. 18.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same spot”? (a) we keep it the same (b) we change it (c) we measure it
19. 19.🔍 Which is the odd one out? (a) a brick (b) a wooden board (c) a book (d) clear glass
20. 20.True or false: a clock to check is not needed for the shadow clock. (a) False (b) True
21. 21.🕰️ What is a sundial used for? (a) weighing things (b) telling the time (c) making rainbows (d) measuring rain
22. 22.True or false: a straight stick is needed for the shadow clock. (a) True (b) False
23. 23.🔦 Is oily paper opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
24. 24.🔦 Which of these is opaque? (a) clear glass (b) clean water (c) your hand (d) butter paper
25. 25.⚖️ 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
26. 26.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) west (b) north (c) east (d) up
27. 27.⚖️ 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 stick kept upright
28. 28.🔮 Predict: on a fully cloudy day, the sundial ___. (a) does not work well (b) runs faster (c) works better (d) shows two times
29. 29.🔦 Is frosted glass opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
30. 30.🌞 When is a stick’s shadow the shortest? (a) around noon (b) early morning (c) at night (d) late evening
31. 31.⚖️ 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 measure it (c) we keep it the same
32. 32.🧺 Do we need a straight stick for the shadow clock? (a) needed (b) not needed
33. 33.True or false: your hand is translucent. (a) True (b) False
34. 34.🔍 Which is the odd one out? (a) butter paper (b) a wooden board (c) a steel plate (d) your hand
35. 35.📘 Why does a shadow form? (a) the ground is dark (b) the object is cold (c) light bends round it (d) an object blocks light
36. 36.🧺 Which of these is needed for the shadow clock? (a) yeast (b) turmeric powder (c) a balloon (d) a clock to check
37. 37.🛟 What should you wear for a long time in the hot sun? (a) a raincoat (b) a woollen sweater (c) a cap or hat (d) nothing on your head
38. 38.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) smaller (b) bigger (c) coloured (d) brighter
39. 39.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) a battery cell (c) a clock to check (d) chalk to mark shadows
40. 40.🌍 Why does the stick’s shadow move during the day? (a) the ground slides (b) the stick grows (c) Earth keeps spinning (d) the stick walks

Free science experiments lessons, practice and worksheets at talentjr.in/science-experiments-for-kids