Science
Longer daylight in spring happens mainly because Earth is:
A. Moving closer to the Sun
B. Rotating faster
C. Tilting toward the Sun
D. Producing more solar energy
C — Tilting toward the Sun
Earth’s axial tilt (about 23.5°) causes seasons. Spring arrives as your hemisphere gradually tilts toward the Sun, increasing daylight and solar intensity — not distance.
Tulips originally came from:
A. France
B. Turkey
C. Japan
D. Mexico
B — Turkey
Tulips became famous in the Netherlands, but they were first cultivated in the Ottoman Empire.
This band released “Hey Jude” and changed pop music worldwide:
A. The Rolling Stones
B. The Beach Boys
C. The Beatles
D. The Who
C — The Beatles
They remain the best-selling band in history and pioneered studio techniques still used today.
Arctic foxes change coat color primarily to:
A. Regulate body temperature
B. Attract mates
C. Camouflage with environment
D. Signal social rank
C — Camouflage
White winter fur blends with snow; brown summer fur matches tundra, improving hunting success and survival.
Which winter sport requires athletes to shoot accurately immediately after intense skiing?
A. Nordic combined
B. Skeleton
C. Biathlon
D. Ski cross
C — Biathlon
Athletes must slow their heart rate rapidly to shoot precisely — a unique combination of endurance and marksmanship.
Snow often insulates plants because it:
A. Produces heat
B. Reflects wind upward
C. Traps air
D. Releases moisture
C — Traps air
Snow is mostly air pockets. This insulation keeps soil temperatures relatively stable, protecting roots from extreme cold.
The world’s largest single flower belongs to:
A. Titan arum
B. Lotus
C. Rafflesia
D. Magnolia
C — Rafflesia
Some blooms exceed 1 meter across and smell like rotting meat to attract flies.
“Bohemian Rhapsody” was recorded by:
A. Pink Floyd
B. Queen
C. Led Zeppelin
D. The Eagles
B — Queen
The song broke radio conventions by blending opera, rock, and ballad styles — with no chorus.
Why do squirrels bury food in fall?
A. Territorial marking
B. Nest building
C. Future food storage
D. Predator distraction
C — Future food storage
They rely on memory and smell to recover caches — though many forgotten seeds grow into trees.
Why does your breath appear in cold air?
A. Oxygen crystallization
B. Carbon dioxide freezing
C. Water vapor condensation
D. Nitrogen release
C — Water vapor condensation
Warm moist breath cools instantly, forming tiny visible droplets.
Why do many lakes “turn over” in spring?
A. Fish migration
B. Wind erosion
C. Equal water density
D. Increased salinity
C — Equal water density
When surface water warms to about 4 °C, it matches the density of deeper water, allowing mixing. This redistributes oxygen and nutrients — critical for aquatic life.
Which flower can change color depending on soil acidity?
A. Rose
B. Hydrangea
C. Peony
D. Iris
B — Hydrangea
Alkaline soil produces pink blooms, acidic soil produces blue — due to aluminum availability.
This band’s album Rumours became one of the best-selling ever:
A. Fleetwood Mac
B. Journey
C. Foreigner
D. Supertramp
A — Fleetwood Mac
Released amid intense personal drama among band members, it sold over 40 million copies.
Some frogs survive freezing by:
A. Burrowing underwater
B. Producing antifreeze compounds
C. Stopping respiration permanently
D. Replacing blood with water
B — Producing antifreeze compounds
Sugars like glucose protect cells from ice damage. Their hearts may stop temporarily — then restart in spring.
The marathon distance (42.195 km) was standardized after which Olympic Games?
A. Athens 1896
B. Paris 1900
C. London 1908
D. Stockholm 1912
C — London 1908
The course was lengthened so the race could start at Windsor Castle and finish in front of the royal box.
Frost forms on clear nights mainly because:
A. Warm air rises quickly
B. Heat escapes into space
C. Ground releases methane
D. Humidity increases sharply
B — Heat escapes into space
Without clouds to trap heat, the ground cools rapidly via radiation, allowing water vapor to freeze directly onto surfaces.
Saffron, one of the world’s most expensive spices, comes from:
A. Lily pollen
B. Crocus stigmas
C. Orchid roots
D. Marigold petals
B — Crocus stigmas
Each flower produces only three threads, all harvested by hand — explaining its high price.
Which band is known for the song “Stairway to Heaven”?
A. Deep Purple
B. Black Sabbath
C. Led Zeppelin
D. Aerosmith
C — Led Zeppelin
Despite never being released as a single, it became one of the most requested radio songs of all time.
Why do many birds sing more in spring?
A. Improved lung capacity
B. Warmer air
C. Territory and mating signals
D. Increased daylight hormones
C — Territory and mating signals
Singing advertises fitness to mates and warns rivals — a critical breeding behavior.
Why are golf balls covered in dimples?
A. To reduce weight
B. To increase spin only
C. To decrease air resistance
D. To create a turbulent boundary layer
D — To create a turbulent boundary layer
Dimples reduce drag and increase lift, allowing balls to travel roughly twice as far as smooth spheres.
Why can late-winter sunshine feel warm even when air temperature stays below freezing?
A. Infrared reflection
B. Reduced atmospheric pressure
C. Direct solar radiation absorption
D. Ozone concentration
C — Direct solar radiation absorption
Sunlight warms skin and dark surfaces directly, independent of air temperature. This is why skiers can feel warm while standing in sub-zero air.
Many spring flowers bloom early to:
A. Avoid pollinators
B. Beat tree leaf growth
C. Maximize rainfall
D. Reduce competition for soil
B — Beat tree leaf growth
Before forest canopies fill in, sunlight reaches the ground — a short but critical window.
This band’s name was inspired by a WWII aircraft nickname:
A. Eagles
B. The Byrds
C. B-52’s
D. Steely Dan
C — B-52’s
Their name comes from the B-52 bomber — though their quirky style is anything but military.
What do many bears do during winter?
A. Migrate south
B. Enter torpor
C. Grow thicker fur
D. Hi-brrrrr-nate
B — Enter torpor
True hibernation is rare in bears; torpor is a lighter state where body temperature drops moderately.
Day length changes fastest around:
A. Solstices
B. Equinoxes
C. Lunar phases
D. Aphelion
B — Equinoxes
Near March and September equinoxes, sunrise and sunset times shift most rapidly day-to-day.