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.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same spot is what we measure. (a) True (b) False
- 2.🛟 What should you wear for a long time in the hot sun? (a) a cap or hat (b) a raincoat (c) nothing on your head (d) a woollen sweater
- 3.🔦 Is a wooden board opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
- 4.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a clock to check (c) chalk to mark shadows (d) a magnet
- 5.True or false: a clock to check is not needed for the shadow clock. (a) True (b) False
- 6.🛟 While watching shadows outdoors, what must you never do? (a) mark with chalk (b) sit in the shade (c) wear a cap (d) look straight at the Sun
- 7.True or false: your hand is transparent. (a) True (b) False
- 8.🔦 Which of these is transparent? (a) frosted glass (b) a wooden board (c) clear glass (d) oily paper
- 9.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) a mirror (c) a straight stick (d) chalk to mark shadows
- 10.True or false: a wooden board is opaque. (a) True (b) False
- 11.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is the one thing we change? (a) the time of day (b) shadow length (c) the stick kept upright (d) the same spot
- 12.🔦 Which of these is opaque? (a) butter paper (b) air (c) tissue paper (d) a wooden board
- 13.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a balloon (c) a straight stick (d) chalk to mark shadows
- 14.True or false: a sunny open place is not needed for the shadow clock. (a) True (b) False
- 15.🧺 Which of these is needed for the shadow clock? (a) yeast (b) turmeric powder (c) a battery cell (d) a clock to check
- 16.True or false: a magnet is needed for the shadow clock. (a) False (b) True
- 17.🔦 Is a book opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
- 18.True or false: a sunny open place is needed for the shadow clock. (a) True (b) False
- 19.🔦 Is a steel plate opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
- 20.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) a straight stick (c) a clock to check (d) turmeric powder
- 21.True or false: butter paper is opaque. (a) False (b) True
- 22.🧺 Which of these is needed for the shadow clock? (a) yeast (b) a mirror (c) a balloon (d) chalk to mark shadows
- 23.🧺 Do we need yeast for the shadow clock? (a) needed (b) not needed
- 24.🔍 Which is the odd one out? (a) butter paper (b) a steel plate (c) your hand (d) a brick
- 25.⚖️ 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 keep it the same (c) we measure it
- 26.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) yeast (b) chalk to mark shadows (c) a sunny open place (d) a clock to check
- 27.⚖️ 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) True (b) False
- 28.🌍 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
- 29.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the time of day is the one thing we change. (a) False (b) True
- 30.🧺 Do we need a straight stick for the shadow clock? (a) not needed (b) needed
- 31.🔮 Predict: on a fully cloudy day, the sundial ___. (a) works better (b) shows two times (c) runs faster (d) does not work well
- 32.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) chalk to mark shadows (c) a clock to check (d) a mirror
- 33.⚖️ 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 spot (c) the same stick (d) shadow length
- 34.True or false: clear glass is opaque. (a) True (b) False
- 35.🌞 When is a stick’s shadow the shortest? (a) at night (b) early morning (c) late evening (d) around noon
- 36.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the time of day”? (a) we measure it (b) we change it (c) we keep it the same
- 37.⚖️ 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
- 38.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) a clock to check (c) a sunny open place (d) a magnet
- 39.⚖️ 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
- 40.🔍 Which is the odd one out? (a) a wooden board (b) clear glass (c) a brick (d) your hand
Answer key
- False
- a cap or hat
- opaque
- a magnet
- False
- look straight at the Sun
- False
- clear glass
- a mirror
- True
- the time of day
- a wooden board
- a balloon
- False
- a clock to check
- False
- opaque
- True
- opaque
- turmeric powder
- False
- chalk to mark shadows
- not needed
- butter paper
- we keep it the same
- yeast
- True
- Earth keeps spinning
- True
- needed
- does not work well
- a mirror
- shadow length
- False
- around noon
- we change it
- we measure it
- a magnet
- True
- clear glass
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