Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 765 · 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.⚖️ 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
2. 2.🧺 Do we need a sunny open place for the shadow clock? (a) not needed (b) needed
3. 3.⚖️ 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) shadow length (c) the stick kept upright (d) the same spot
4. 4.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) bigger (b) coloured (c) smaller (d) brighter
5. 5.🧺 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 straight stick (d) a mirror
6. 6.🧺 Do we need a magnet for the shadow clock? (a) needed (b) not needed
7. 7.🔍 Which is the odd one out? (a) air (b) clear plastic film (c) oily paper (d) clear glass
8. 8.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) chalk to mark shadows (c) a clock to check (d) a magnet
9. 9.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “shadow length”? (a) we keep it the same (b) we change it (c) we measure it
10. 10.True or false: a balloon is not needed for the shadow clock. (a) False (b) True
11. 11.🛟 What should you wear for a long time in the hot sun? (a) a cap or hat (b) a woollen sweater (c) a raincoat (d) nothing on your head
12. 12.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) a straight stick (c) chalk to mark shadows (d) turmeric powder
13. 13.True or false: frosted glass is transparent. (a) False (b) True
14. 14.⚖️ 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
15. 15.🧺 Do we need yeast for the shadow clock? (a) needed (b) not needed
16. 16.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) missing (b) round (c) short (d) long
17. 17.🕰️ What is a sundial used for? (a) weighing things (b) telling the time (c) making rainbows (d) measuring rain
18. 18.🔦 Which of these is opaque? (a) a book (b) butter paper (c) clear glass (d) tissue paper
19. 19.🧺 Do we need turmeric powder for the shadow clock? (a) not needed (b) needed
20. 20.True or false: a steel plate is opaque. (a) True (b) False
21. 21.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: shadow length is kept the same. (a) False (b) True
22. 22.🧺 Do we need a balloon for the shadow clock? (a) not needed (b) needed
23. 23.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) a sunny open place (c) chalk to mark shadows (d) yeast
24. 24.🔍 Which is the odd one out? (a) your hand (b) butter paper (c) a book (d) a steel plate
25. 25.🔦 Which of these is translucent? (a) a steel plate (b) oily paper (c) clear glass (d) a brick
26. 26.🌍 Why does the stick’s shadow move during the day? (a) the stick walks (b) the ground slides (c) the stick grows (d) Earth keeps spinning
27. 27.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) a clock to check (c) a balloon (d) chalk to mark shadows
28. 28.🔦 Which of these is transparent? (a) a steel plate (b) a book (c) clear plastic film (d) a wooden board
29. 29.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is the one thing we change. (a) True (b) False
30. 30.🧺 Which of these is needed for the shadow clock? (a) a mirror (b) a clock to check (c) a magnet (d) a balloon
31. 31.🧺 Do we need a straight stick for the shadow clock? (a) not needed (b) needed
32. 32.⚖️ 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
33. 33.True or false: a battery cell is needed for the shadow clock. (a) False (b) True
34. 34.⚖️ 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
35. 35.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same stick”? (a) we change it (b) we measure it (c) we keep it the same
36. 36.True or false: a sunny open place is not needed for the shadow clock. (a) True (b) False
37. 37.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) up (b) north (c) west (d) east
38. 38.True or false: turmeric powder is needed for the shadow clock. (a) False (b) True
39. 39.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) a magnet (c) a sunny open place (d) a clock to check
40. 40.🧺 Which of these is needed for the shadow clock? (a) chalk to mark shadows (b) a balloon (c) turmeric powder (d) a magnet

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