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