Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 490 · 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 needed for the shadow clock? (a) turmeric powder (b) yeast (c) a straight stick (d) a magnet
2. 2.🔦 Is butter paper opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
3. 3.🔦 Which of these is transparent? (a) a brick (b) air (c) frosted glass (d) a book
4. 4.🛟 While watching shadows outdoors, what must you never do? (a) mark with chalk (b) wear a cap (c) sit in the shade (d) look straight at the Sun
5. 5.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a straight stick (c) a balloon (d) a sunny open place
6. 6.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “shadow length”? (a) we measure it (b) we change it (c) we keep it the same
7. 7.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) missing (b) round (c) short (d) long
8. 8.🧺 Which of these is needed for the shadow clock? (a) turmeric powder (b) a sunny open place (c) a balloon (d) a battery cell
9. 9.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is the one thing we change? (a) shadow length (b) the time of day (c) the stick kept upright (d) the same stick
10. 10.🔦 Which of these is translucent? (a) your hand (b) clear plastic film (c) air (d) butter paper
11. 11.🔍 Which is the odd one out? (a) clear plastic film (b) a brick (c) a steel plate (d) a wooden board
12. 12.🧺 Do we need turmeric powder for the shadow clock? (a) not needed (b) needed
13. 13.True or false: tissue paper is translucent. (a) False (b) True
14. 14.🧺 Which of these is needed for the shadow clock? (a) a clock to check (b) turmeric powder (c) a mirror (d) yeast
15. 15.🔦 Which of these is translucent? (a) a brick (b) clean water (c) clear glass (d) frosted glass
16. 16.🧺 Do we need a balloon for the shadow clock? (a) needed (b) not needed
17. 17.🔍 Which is the odd one out? (a) a wooden board (b) a book (c) clear glass (d) a steel plate
18. 18.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: shadow length is what we measure. (a) False (b) True
19. 19.🧺 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 magnet
20. 20.🧺 Do we need a mirror for the shadow clock? (a) needed (b) not needed
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 straight stick (d) turmeric powder
22. 22.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a sunny open place (c) yeast (d) chalk to mark shadows
23. 23.True or false: a magnet is not needed for the shadow clock. (a) False (b) True
24. 24.🔍 Which is the odd one out? (a) clear plastic film (b) clear glass (c) clean water (d) butter paper
25. 25.🔦 Which of these is opaque? (a) clear plastic film (b) a steel plate (c) tissue paper (d) clear glass
26. 26.🧺 Do we need a sunny open place for the shadow clock? (a) not needed (b) needed
27. 27.🧺 Do we need a straight stick for the shadow clock? (a) not needed (b) needed
28. 28.🛟 What should you wear for a long time in the hot sun? (a) a woollen sweater (b) a cap or hat (c) a raincoat (d) nothing on your head
29. 29.⚖️ 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
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.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same stick”? (a) we measure it (b) we change it (c) we keep it the same
32. 32.⚖️ 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) False (b) True
33. 33.🧺 Which of these is needed for the shadow clock? (a) a magnet (b) chalk to mark shadows (c) a mirror (d) a battery cell
34. 34.True or false: oily paper is transparent. (a) False (b) True
35. 35.⚖️ 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
36. 36.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) a clock to check (c) a mirror (d) a straight stick
37. 37.🔦 Which of these is opaque? (a) a book (b) butter paper (c) air (d) frosted glass
38. 38.🌍 Why does the stick’s shadow move during the day? (a) the stick grows (b) the ground slides (c) the stick walks (d) Earth keeps spinning
39. 39.True or false: yeast is needed for the shadow clock. (a) False (b) True
40. 40.🔦 Is clear glass opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque

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