Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 867 · 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.🔮 Predict: on a fully cloudy day, the sundial ___. (a) works better (b) runs faster (c) shows two times (d) does not work well
2. 2.🔦 Which of these is translucent? (a) clear plastic film (b) a brick (c) clear glass (d) frosted glass
3. 3.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) smaller (b) coloured (c) brighter (d) bigger
4. 4.🧺 Do we need turmeric powder for the shadow clock? (a) not needed (b) needed
5. 5.🧺 Which of these is not needed for the shadow clock? (a) a battery cell (b) a straight stick (c) a sunny open place (d) a clock to check
6. 6.🔦 Which of these is translucent? (a) a steel plate (b) air (c) butter paper (d) a wooden board
7. 7.True or false: your hand is transparent. (a) False (b) True
8. 8.True or false: a clock to check is needed for the shadow clock. (a) True (b) False
9. 9.🔦 Which of these is transparent? (a) clean water (b) tissue paper (c) butter paper (d) a book
10. 10.🧺 Which of these is needed for the shadow clock? (a) turmeric powder (b) chalk to mark shadows (c) a magnet (d) a balloon
11. 11.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) long (b) missing (c) round (d) short
12. 12.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a straight stick (c) turmeric powder (d) chalk to mark shadows
13. 13.⚖️ 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 measure it (c) we keep it the same
14. 14.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same spot”? (a) we change it (b) we keep it the same (c) we measure it
15. 15.🧺 Which of these is needed for the shadow clock? (a) a battery cell (b) a mirror (c) a balloon (d) a clock to check
16. 16.🔦 Which of these is transparent? (a) butter paper (b) tissue paper (c) clear plastic film (d) a brick
17. 17.🕰️ What is a sundial used for? (a) making rainbows (b) telling the time (c) measuring rain (d) weighing things
18. 18.🌍 Why does the stick’s shadow move during the day? (a) Earth keeps spinning (b) the ground slides (c) the stick grows (d) the stick walks
19. 19.🔦 Which of these is translucent? (a) a book (b) clear plastic film (c) clean water (d) oily paper
20. 20.🧺 Which of these is needed for the shadow clock? (a) a battery cell (b) a magnet (c) yeast (d) a sunny open place
21. 21.🔦 Which of these is transparent? (a) air (b) a steel plate (c) a wooden board (d) tissue paper
22. 22.🔍 Which is the odd one out? (a) clean water (b) clear plastic film (c) a steel plate (d) clear glass
23. 23.True or false: a clock to check is not needed for the shadow clock. (a) True (b) False
24. 24.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) up (b) north (c) east (d) west
25. 25.True or false: a magnet is needed for the shadow clock. (a) False (b) True
26. 26.True or false: yeast is not needed for the shadow clock. (a) False (b) True
27. 27.🔦 Is oily paper opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
28. 28.🛟 While watching shadows outdoors, what must you never do? (a) look straight at the Sun (b) sit in the shade (c) mark with chalk (d) wear a cap
29. 29.🔍 Which is the odd one out? (a) tissue paper (b) oily paper (c) butter paper (d) a brick
30. 30.🧺 Which of these is needed for the shadow clock? (a) a magnet (b) a straight stick (c) a battery cell (d) a mirror
31. 31.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) the same spot (b) shadow length (c) the same stick (d) the stick kept upright
32. 32.🔍 Which is the odd one out? (a) oily paper (b) a book (c) a wooden board (d) a steel plate
33. 33.True or false: air is opaque. (a) True (b) False
34. 34.⚖️ 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
35. 35.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) a sunny open place (c) a clock to check (d) a balloon
36. 36.🛟 What should you wear for a long time in the hot sun? (a) a cap or hat (b) a raincoat (c) nothing on your head (d) a woollen sweater
37. 37.🧺 Do we need a straight stick for the shadow clock? (a) not needed (b) needed
38. 38.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a mirror (b) a clock to check (c) a straight stick (d) a sunny open place
39. 39.⚖️ 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) shadow length
40. 40.🔦 Is your hand opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent

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