Shadow and Sundial Experiment Worksheet
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.
NameDateTime takenScore ___ / 40
- 1.🧺 Do we need a clock to check for the shadow clock? (a) not needed (b) needed
- 2.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same spot”? (a) we measure it (b) we keep it the same (c) we change it
- 3.True or false: your hand is opaque. (a) True (b) False
- 4.⚖️ 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 measure it (c) we change it
- 5.🧺 Do we need a magnet for the shadow clock? (a) not needed (b) needed
- 6.🕰️ What is a sundial used for? (a) weighing things (b) telling the time (c) making rainbows (d) measuring rain
- 7.True or false: a balloon is not needed for the shadow clock. (a) True (b) False
- 8.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) north (b) east (c) west (d) up
- 9.🔍 Which is the odd one out? (a) a brick (b) a steel plate (c) a book (d) clear plastic film
- 10.True or false: a mirror is needed for the shadow clock. (a) False (b) True
- 11.True or false: a wooden board is opaque. (a) True (b) False
- 12.🧺 Do we need chalk to mark shadows for the shadow clock? (a) needed (b) not needed
- 13.🔍 Which is the odd one out? (a) butter paper (b) a wooden board (c) a book (d) a steel plate
- 14.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) coloured (b) brighter (c) bigger (d) smaller
- 15.True or false: a battery cell is not needed for the shadow clock. (a) True (b) False
- 16.🔦 Is air opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
- 17.⚖️ 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 same spot (d) the same stick
- 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.True or false: a mirror is not needed for the shadow clock. (a) True (b) False
- 20.True or false: a steel plate is translucent. (a) True (b) False
- 21.🔦 Is a book opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
- 22.🧺 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) yeast
- 23.🧺 Do we need turmeric powder for the shadow clock? (a) needed (b) not needed
- 24.🌞 When is a stick’s shadow the shortest? (a) around noon (b) at night (c) early morning (d) late evening
- 25.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a clock to check (c) a balloon (d) a sunny open place
- 26.True or false: tissue paper is transparent. (a) False (b) True
- 27.🧺 Which of these is needed for the shadow clock? (a) a balloon (b) a straight stick (c) yeast (d) turmeric powder
- 28.🔦 Which of these is opaque? (a) a book (b) air (c) butter paper (d) tissue paper
- 29.🛟 What should you wear for a long time in the hot sun? (a) a cap or hat (b) nothing on your head (c) a woollen sweater (d) a raincoat
- 30.🔦 Is a brick opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
- 31.⚖️ 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
- 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.🔍 Which is the odd one out? (a) clear plastic film (b) air (c) tissue paper (d) clean water
- 34.🔍 Which is the odd one out? (a) tissue paper (b) frosted glass (c) oily paper (d) your hand
- 35.🔦 Is frosted glass opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
- 36.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is kept the same. (a) False (b) True
- 37.⚖️ 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
- 38.True or false: chalk to mark shadows is not needed for the shadow clock. (a) False (b) True
- 39.⚖️ 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
- 40.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same spot is kept the same. (a) True (b) False
Answer key
- needed
- we keep it the same
- True
- we measure it
- not needed
- telling the time
- True
- west
- clear plastic film
- False
- True
- needed
- butter paper
- bigger
- True
- transparent
- shadow length
- True
- True
- False
- opaque
- yeast
- not needed
- around noon
- a balloon
- False
- a straight stick
- a book
- a cap or hat
- opaque
- False
- False
- tissue paper
- your hand
- translucent
- True
- True
- False
- the stick kept upright
- True
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