Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 50 · 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.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) east (b) west (c) up (d) north
2. 2.🔦 Which of these is opaque? (a) tissue paper (b) a brick (c) oily paper (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) bigger (d) brighter
4. 4.🧺 Do we need a balloon for the shadow clock? (a) not needed (b) needed
5. 5.⚖️ 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
6. 6.⚖️ 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) the stick kept upright (c) shadow length
7. 7.True or false: a magnet is not needed for the shadow clock. (a) False (b) True
8. 8.True or false: a mirror is not needed for the shadow clock. (a) False (b) True
9. 9.🛟 While watching shadows outdoors, what must you never do? (a) look straight at the Sun (b) wear a cap (c) sit in the shade (d) mark with chalk
10. 10.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a magnet (c) chalk to mark shadows (d) a sunny open place
11. 11.True or false: air is translucent. (a) True (b) False
12. 12.🔦 Is a book opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
13. 13.True or false: a brick is transparent. (a) True (b) False
14. 14.True or false: clean water is transparent. (a) False (b) True
15. 15.⚖️ 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
16. 16.🧺 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) a sunny open place
17. 17.🧺 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 sunny open place (d) a mirror
18. 18.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the time of day is what we measure. (a) True (b) False
19. 19.🔍 Which is the odd one out? (a) a steel plate (b) a wooden board (c) a book (d) butter paper
20. 20.True or false: a clock to check is not needed for the shadow clock. (a) True (b) False
21. 21.🧺 Which of these is not needed for the shadow clock? (a) a magnet (b) a sunny open place (c) chalk to mark shadows (d) a clock to check
22. 22.🧺 Do we need a mirror for the shadow clock? (a) not needed (b) needed
23. 23.⚖️ 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) shadow length (d) the same stick
24. 24.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: shadow length is the one thing we change. (a) True (b) False
25. 25.🔦 Which of these is transparent? (a) tissue paper (b) oily paper (c) butter paper (d) clean water
26. 26.🧺 Which of these is needed for the shadow clock? (a) yeast (b) a clock to check (c) turmeric powder (d) a battery cell
27. 27.🔦 Which of these is transparent? (a) a steel plate (b) a wooden board (c) air (d) your hand
28. 28.🛟 What should you wear for a long time in the hot sun? (a) a woollen sweater (b) nothing on your head (c) a raincoat (d) a cap or hat
29. 29.📘 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
30. 30.🧺 Which of these is needed for the shadow clock? (a) chalk to mark shadows (b) yeast (c) a magnet (d) a battery cell
31. 31.🕰️ What is a sundial used for? (a) making rainbows (b) telling the time (c) measuring rain (d) weighing things
32. 32.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same stick”? (a) we keep it the same (b) we measure it (c) we change it
33. 33.🧺 Which of these is needed for the shadow clock? (a) a straight stick (b) a mirror (c) yeast (d) a magnet
34. 34.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) turmeric powder (c) a straight stick (d) a clock to check
35. 35.🔦 Is a brick opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
36. 36.🔦 Which of these is opaque? (a) a wooden board (b) oily paper (c) air (d) butter paper
37. 37.⚖️ 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
38. 38.🔦 Which of these is translucent? (a) clear plastic film (b) a brick (c) your hand (d) oily paper
39. 39.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) long (b) missing (c) round (d) short
40. 40.True or false: butter paper is opaque. (a) True (b) False

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