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.🧺 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
- 2.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) north (b) up (c) east (d) west
- 3.True or false: a magnet is needed for the shadow clock. (a) True (b) False
- 4.🔍 Which is the odd one out? (a) a wooden board (b) clear plastic film (c) a book (d) a steel plate
- 5.True or false: oily paper is translucent. (a) True (b) False
- 6.🧺 Do we need a magnet for the shadow clock? (a) needed (b) not needed
- 7.🧺 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 clock to check
- 8.🧺 Do we need a balloon for the shadow clock? (a) not needed (b) needed
- 9.🧺 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 sunny open place (d) a mirror
- 10.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is kept the same. (a) True (b) False
- 11.🔮 Predict: on a fully cloudy day, the sundial ___. (a) shows two times (b) runs faster (c) does not work well (d) works better
- 12.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “shadow length”? (a) we change it (b) we keep it the same (c) we measure it
- 13.True or false: frosted glass is translucent. (a) False (b) True
- 14.🧺 Do we need yeast for the shadow clock? (a) not needed (b) needed
- 15.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same spot is what we measure. (a) False (b) True
- 16.🔦 Is a book opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
- 17.🛟 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
- 18.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) a sunny open place (c) a mirror (d) a straight stick
- 19.📘 Why does a shadow form? (a) the object is cold (b) the ground is dark (c) an object blocks light (d) light bends round it
- 20.True or false: a balloon is needed for the shadow clock. (a) False (b) True
- 21.🧺 Which of these is needed for the shadow clock? (a) a clock to check (b) a mirror (c) turmeric powder (d) a battery cell
- 22.🧺 Which of these is needed for the shadow clock? (a) a straight stick (b) turmeric powder (c) yeast (d) a battery cell
- 23.🛟 While watching shadows outdoors, what must you never do? (a) look straight at the Sun (b) mark with chalk (c) sit in the shade (d) wear a cap
- 24.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) round (b) missing (c) short (d) long
- 25.🧺 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 battery cell
- 26.⚖️ 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 same stick (c) the time of day
- 27.🌍 Why does the stick’s shadow move during the day? (a) the stick walks (b) the stick grows (c) Earth keeps spinning (d) the ground slides
- 28.🌞 When is a stick’s shadow the shortest? (a) early morning (b) late evening (c) around noon (d) at night
- 29.🔦 Which of these is transparent? (a) tissue paper (b) air (c) a book (d) butter paper
- 30.True or false: a battery cell is needed for the shadow clock. (a) False (b) True
- 31.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) brighter (b) coloured (c) bigger (d) smaller
- 32.⚖️ 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
- 33.True or false: butter paper is transparent. (a) True (b) False
- 34.🔍 Which is the odd one out? (a) butter paper (b) tissue paper (c) your hand (d) frosted glass
- 35.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) shadow length (b) the same spot (c) the time of day (d) the same stick
- 36.True or false: a wooden board is transparent. (a) False (b) True
- 37.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: shadow length is kept the same. (a) True (b) False
- 38.🧺 Which of these is not needed for the shadow clock? (a) a clock to check (b) a sunny open place (c) yeast (d) a straight stick
- 39.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the stick kept upright”? (a) we measure it (b) we keep it the same (c) we change it
- 40.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a straight stick (c) chalk to mark shadows (d) a balloon
Answer key
- a magnet
- west
- False
- clear plastic film
- True
- not needed
- a battery cell
- not needed
- a mirror
- True
- does not work well
- we measure it
- True
- not needed
- False
- opaque
- a cap or hat
- a mirror
- an object blocks light
- False
- a clock to check
- a straight stick
- look straight at the Sun
- long
- a battery cell
- the same stick
- Earth keeps spinning
- around noon
- air
- False
- bigger
- True
- False
- your hand
- shadow length
- False
- False
- yeast
- we keep it the same
- a balloon
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