Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 651 · 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.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) a straight stick (c) a clock to check (d) a magnet
2. 2.🛟 While watching shadows outdoors, what must you never do? (a) look straight at the Sun (b) wear a cap (c) mark with chalk (d) sit in the shade
3. 3.🧺 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) yeast (d) a straight stick
4. 4.🧺 Which of these is needed for the shadow clock? (a) a battery cell (b) a mirror (c) turmeric powder (d) a sunny open place
5. 5.🧺 Do we need a magnet for the shadow clock? (a) needed (b) not needed
6. 6.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) a straight stick (c) a mirror (d) a clock to check
7. 7.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a battery cell (c) a clock to check (d) chalk to mark shadows
8. 8.⚖️ 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
9. 9.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the time of day”? (a) we change it (b) we measure it (c) we keep it the same
10. 10.🕰️ What is a sundial used for? (a) measuring rain (b) making rainbows (c) telling the time (d) weighing things
11. 11.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) bigger (b) smaller (c) coloured (d) brighter
12. 12.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a sunny open place (c) chalk to mark shadows (d) a balloon
13. 13.🧺 Which of these is needed for the shadow clock? (a) turmeric powder (b) a battery cell (c) a magnet (d) a straight stick
14. 14.🧺 Do we need a battery cell for the shadow clock? (a) not needed (b) needed
15. 15.🔍 Which is the odd one out? (a) butter paper (b) tissue paper (c) a book (d) frosted glass
16. 16.True or false: a mirror is needed for the shadow clock. (a) False (b) True
17. 17.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) a sunny open place (c) a straight stick (d) a balloon
18. 18.🔦 Is clean water opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
19. 19.⚖️ 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
20. 20.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) east (b) north (c) up (d) west
21. 21.⚖️ 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
22. 22.True or false: a clock to check is not needed for the shadow clock. (a) True (b) False
23. 23.🔍 Which is the odd one out? (a) air (b) a wooden board (c) clear glass (d) clear plastic film
24. 24.🧺 Do we need yeast for the shadow clock? (a) needed (b) not needed
25. 25.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) yeast (c) chalk to mark shadows (d) a sunny open place
26. 26.True or false: a balloon is not needed for the shadow clock. (a) False (b) True
27. 27.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is the one thing we change? (a) the stick kept upright (b) the time of day (c) the same spot (d) the same stick
28. 28.🔮 Predict: on a fully cloudy day, the sundial ___. (a) does not work well (b) shows two times (c) runs faster (d) works better
29. 29.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) turmeric powder (c) a clock to check (d) a sunny open place
30. 30.🧺 Do we need a sunny open place for the shadow clock? (a) not needed (b) needed
31. 31.🧺 Do we need turmeric powder for the shadow clock? (a) not needed (b) needed
32. 32.True or false: your hand is transparent. (a) False (b) True
33. 33.True or false: a brick is transparent. (a) True (b) False
34. 34.🔦 Which of these is translucent? (a) a wooden board (b) a steel plate (c) clean water (d) tissue paper
35. 35.🔍 Which is the odd one out? (a) a brick (b) frosted glass (c) oily paper (d) tissue paper
36. 36.⚖️ 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 stick
37. 37.⚖️ 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
38. 38.🔦 Which of these is opaque? (a) clean water (b) tissue paper (c) a steel plate (d) clear plastic film
39. 39.🛟 What should you wear for a long time in the hot sun? (a) a raincoat (b) nothing on your head (c) a cap or hat (d) a woollen sweater
40. 40.🔦 Is a wooden board opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque

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