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 transparent? (a) clean water (b) oily paper (c) a steel plate (d) butter paper
- 2.True or false: a mirror is not needed for the shadow clock. (a) False (b) True
- 3.🔮 Predict: on a fully cloudy day, the sundial ___. (a) runs faster (b) shows two times (c) does not work well (d) works better
- 4.🌞 When is a stick’s shadow the shortest? (a) at night (b) late evening (c) early morning (d) around noon
- 5.⚖️ 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 time of day (c) the same stick
- 6.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is kept the same? (a) the stick kept upright (b) the time of day (c) shadow length
- 7.True or false: butter paper is translucent. (a) False (b) True
- 8.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a sunny open place (c) chalk to mark shadows (d) a mirror
- 9.🧺 Which of these is not needed for the shadow clock? (a) a clock to check (b) a sunny open place (c) a battery cell (d) a straight stick
- 10.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) missing (b) round (c) short (d) long
- 11.🧺 Do we need turmeric powder for the shadow clock? (a) not needed (b) needed
- 12.True or false: a magnet is not needed for the shadow clock. (a) True (b) False
- 13.⚖️ 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
- 14.🔦 Which of these is translucent? (a) a wooden board (b) a book (c) a brick (d) butter paper
- 15.🌍 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
- 16.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) bigger (b) coloured (c) brighter (d) smaller
- 17.True or false: yeast is needed for the shadow clock. (a) True (b) False
- 18.🧺 Do we need yeast for the shadow clock? (a) needed (b) not needed
- 19.🧺 Do we need a mirror for the shadow clock? (a) not needed (b) needed
- 20.🧺 Do we need a straight stick for the shadow clock? (a) needed (b) not needed
- 21.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) a sunny open place (c) a clock to check (d) a battery cell
- 22.True or false: a book is opaque. (a) False (b) True
- 23.🧺 Which of these is needed for the shadow clock? (a) a balloon (b) a battery cell (c) turmeric powder (d) a straight stick
- 24.🧺 Which of these is not needed for the shadow clock? (a) a clock to check (b) a magnet (c) chalk to mark shadows (d) a straight stick
- 25.🧺 Do we need a battery cell for the shadow clock? (a) not needed (b) needed
- 26.🧺 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) a balloon
- 27.🛟 What should you wear for a long time in the hot sun? (a) nothing on your head (b) a raincoat (c) a woollen sweater (d) a cap or hat
- 28.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) turmeric powder (c) a straight stick (d) a sunny open place
- 29.🔦 Which of these is opaque? (a) clean water (b) butter paper (c) clear plastic film (d) your hand
- 30.🔍 Which is the odd one out? (a) a wooden board (b) a book (c) air (d) your hand
- 31.🧺 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 magnet
- 32.True or false: your hand is opaque. (a) False (b) True
- 33.🔦 Is clear glass opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
- 34.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the time of day is kept the same. (a) True (b) False
- 35.🔍 Which is the odd one out? (a) oily paper (b) butter paper (c) tissue paper (d) a brick
- 36.⚖️ 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 change it (c) we keep it the same
- 37.True or false: chalk to mark shadows is needed for the shadow clock. (a) True (b) False
- 38.True or false: a brick is transparent. (a) True (b) False
- 39.🧺 Do we need a clock to check for the shadow clock? (a) needed (b) not needed
- 40.🧺 Do we need a sunny open place for the shadow clock? (a) not needed (b) needed
Answer key
- clean water
- True
- does not work well
- around noon
- the same stick
- the stick kept upright
- True
- a mirror
- a battery cell
- long
- not needed
- True
- we keep it the same
- butter paper
- Earth keeps spinning
- bigger
- False
- not needed
- not needed
- needed
- a battery cell
- True
- a straight stick
- a magnet
- not needed
- a balloon
- a cap or hat
- turmeric powder
- your hand
- air
- a magnet
- True
- transparent
- False
- a brick
- we keep it the same
- True
- False
- needed
- needed
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