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 is the odd one out? (a) your hand (b) clear plastic film (c) clear glass (d) clean water
- 2.⚖️ 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
- 3.🔦 Is a wooden board opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
- 4.True or false: a sunny open place is needed for the shadow clock. (a) False (b) True
- 5.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) west (b) north (c) up (d) east
- 6.🔍 Which is the odd one out? (a) a wooden board (b) air (c) clean water (d) clear plastic film
- 7.🕰️ What is a sundial used for? (a) measuring rain (b) weighing things (c) making rainbows (d) telling the time
- 8.🔦 Which of these is transparent? (a) a wooden board (b) air (c) a book (d) a brick
- 9.🧺 Do we need a sunny open place for the shadow clock? (a) not needed (b) needed
- 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 same stick (b) the same spot (c) shadow length (d) the time of day
- 12.🔦 Which of these is translucent? (a) a steel plate (b) a brick (c) clear glass (d) frosted glass
- 13.🌞 When is a stick’s shadow the shortest? (a) late evening (b) around noon (c) early morning (d) at night
- 14.🔍 Which is the odd one out? (a) your hand (b) a book (c) clean water (d) a wooden board
- 15.🛟 What should you wear for a long time in the hot sun? (a) nothing on your head (b) a raincoat (c) a cap or hat (d) a woollen sweater
- 16.⚖️ 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
- 17.True or false: a steel plate is transparent. (a) True (b) False
- 18.True or false: a book is transparent. (a) True (b) False
- 19.True or false: clean water is transparent. (a) True (b) False
- 20.🧺 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 balloon (d) chalk to mark shadows
- 21.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the time of day is what we measure. (a) False (b) True
- 22.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) brighter (b) bigger (c) coloured (d) smaller
- 23.True or false: a battery cell is not needed for the shadow clock. (a) True (b) False
- 24.True or false: butter paper is translucent. (a) True (b) False
- 25.True or false: chalk to mark shadows is needed for the shadow clock. (a) True (b) False
- 26.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) a mirror (c) a sunny open place (d) a clock to check
- 27.🌍 Why does the stick’s shadow move during the day? (a) Earth keeps spinning (b) the stick walks (c) the ground slides (d) the stick grows
- 28.True or false: chalk to mark shadows is not needed for the shadow clock. (a) False (b) True
- 29.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) missing (b) round (c) short (d) long
- 30.🧺 Do we need a straight stick for the shadow clock? (a) needed (b) not needed
- 31.🛟 While watching shadows outdoors, what must you never do? (a) mark with chalk (b) sit in the shade (c) look straight at the Sun (d) wear a cap
- 32.🔦 Which of these is opaque? (a) tissue paper (b) clear plastic film (c) a wooden board (d) clear glass
- 33.🔦 Which of these is translucent? (a) a steel plate (b) tissue paper (c) clear glass (d) a wooden board
- 34.True or false: yeast is not needed for the shadow clock. (a) True (b) False
- 35.🧺 Do we need a balloon for the shadow clock? (a) needed (b) not needed
- 36.True or false: butter paper is opaque. (a) False (b) True
- 37.🧺 Which of these is needed for the shadow clock? (a) yeast (b) a balloon (c) a sunny open place (d) a magnet
- 38.🧺 Do we need a mirror for the shadow clock? (a) needed (b) not needed
- 39.True or false: your hand is opaque. (a) True (b) False
- 40.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is kept the same? (a) the same stick (b) the time of day (c) shadow length
Answer key
- your hand
- we change it
- opaque
- True
- west
- a wooden board
- telling the time
- air
- needed
- True
- the time of day
- frosted glass
- around noon
- clean water
- a cap or hat
- we measure it
- False
- False
- True
- a balloon
- False
- bigger
- True
- True
- True
- a mirror
- Earth keeps spinning
- False
- long
- needed
- look straight at the Sun
- a wooden board
- tissue paper
- True
- not needed
- False
- a sunny open place
- not needed
- True
- the same stick
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