Science MCQs

The Moon's gravitational pull is about 1/6th that of Earth's so an astronaut weighs less there.

As the Earth rotates most coastal areas experience two high tides and two low tides every day.

Astronomy is the scientific study of celestial objects (stars planets comets) and phenomena that originate outside Earth's atmosphere.

City lights create light pollution which makes it harder to see faint stars. Remote locations offer darker clearer skies.

Gravity pulls particles of gas and dust in a nebula together increasing pressure and heat until nuclear fusion begins forming a star.

Mass is the amount of matter in an object (constant). Weight is the gravitational force acting on that mass (changes with gravity).

Tides are the regular rise and fall of ocean water levels caused primarily by the Moon's gravitational pull.

The gravitational force is directly proportional to the product of the masses. If masses increase the force increases.

The hemisphere that is tilted away from the Sun receives less direct solar radiation and experiences winter.

Constellations are recognizable patterns of stars in the night sky often named after mythological figures or animals.