Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 794 · 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 translucent? (a) your hand (b) air (c) oily paper (d) clear plastic film
2. 2.🧺 Do we need a straight stick for the shadow clock? (a) not needed (b) needed
3. 3.🧺 Which of these is needed for the shadow clock? (a) a straight stick (b) a balloon (c) a magnet (d) yeast
4. 4.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) coloured (b) bigger (c) smaller (d) brighter
5. 5.🔦 Which of these is transparent? (a) frosted glass (b) tissue paper (c) a steel plate (d) clear plastic film
6. 6.True or false: a balloon is needed for the shadow clock. (a) True (b) False
7. 7.🧺 Which of these is needed for the shadow clock? (a) a balloon (b) a mirror (c) a sunny open place (d) a battery cell
8. 8.🧺 Which of these is not needed for the shadow clock? (a) yeast (b) chalk to mark shadows (c) a straight stick (d) a sunny open place
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.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) round (b) long (c) missing (d) short
11. 11.⚖️ 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 stick kept upright (c) the same spot (d) the time of day
12. 12.🔦 Is a wooden board opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
13. 13.🔮 Predict: on a fully cloudy day, the sundial ___. (a) shows two times (b) does not work well (c) runs faster (d) works better
14. 14.🧺 Do we need chalk to mark shadows for the shadow clock? (a) needed (b) not needed
15. 15.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) a straight stick (c) yeast (d) a clock to check
16. 16.⚖️ 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 time of day
17. 17.🛟 What should you wear for a long time in the hot sun? (a) a woollen sweater (b) a raincoat (c) nothing on your head (d) a cap or hat
18. 18.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a balloon (b) a sunny open place (c) a straight stick (d) a clock to check
19. 19.🔦 Is air opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
20. 20.🧺 Do we need a mirror for the shadow clock? (a) needed (b) not needed
21. 21.🔦 Is a book opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
22. 22.⚖️ 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
23. 23.🧺 Do we need a balloon for the shadow clock? (a) needed (b) not needed
24. 24.⚖️ 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 stick kept upright (c) the time of day
25. 25.🌍 Why does the stick’s shadow move during the day? (a) the ground slides (b) Earth keeps spinning (c) the stick walks (d) the stick grows
26. 26.🛟 While watching shadows outdoors, what must you never do? (a) sit in the shade (b) look straight at the Sun (c) mark with chalk (d) wear a cap
27. 27.🔦 Which of these is opaque? (a) frosted glass (b) clear glass (c) your hand (d) butter paper
28. 28.⚖️ 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
29. 29.🧺 Do we need a magnet for the shadow clock? (a) needed (b) not needed
30. 30.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the stick kept upright”? (a) we keep it the same (b) we measure it (c) we change it
31. 31.🔦 Is a steel plate opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
32. 32.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) a battery cell (c) chalk to mark shadows (d) a straight stick
33. 33.🧺 Which of these is not needed for the shadow clock? (a) a clock to check (b) a sunny open place (c) a straight stick (d) a balloon
34. 34.True or false: a sunny open place is needed for the shadow clock. (a) True (b) False
35. 35.🔦 Which of these is translucent? (a) a brick (b) butter paper (c) clear glass (d) clear plastic film
36. 36.🔍 Which is the odd one out? (a) butter paper (b) a steel plate (c) a book (d) your hand
37. 37.🧺 Do we need turmeric powder for the shadow clock? (a) needed (b) not needed
38. 38.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) up (b) west (c) east (d) north
39. 39.🧺 Do we need a battery cell for the shadow clock? (a) not needed (b) needed
40. 40.🧺 Which of these is needed for the shadow clock? (a) yeast (b) a magnet (c) a clock to check (d) a balloon

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