Biology
This organ is considered the control center of the human body.
Brain
It's the largest celestial body or object in the solar system.
The sun.
It's the name of the organelle in charge of photosynthesis in plant cells.
Chloroplast.
It's the noncontact pulling force measured as 9.81 meters per second squared (m/s2) in our planet Earth.
Gravity force.
It's the basic unit of life in a living organism.
Cell.
It's the second largest planet in the solar system and it is well known for its rings around it.
Saturn.
It's the name of the green pigment that traps sunlight for photosynthesis in plant cells.
Chlorophyll.
It's a type of friction that is exerted by the air in a falling object.
Air resistance.
It's the longest bone in the human body.
Femur.
The fourth planet in our solar system, famously known as the red planet.
Mars.
It's the chemical formula for water which is considered vital for life.
H2O
It's the name of the force exerted by water in an object also famously known as buoyant force or buoyancy.
Upthrust.
It's the scientific name for animals with a backbone or bones in their bodies.
Vertebrates or vertebrate animals.
It's the hottest planet in the solar system not because of its proximity to the sun but because this planet has a very thick atmosphere which creates a runaway greenhouse effect.
Venus.
The scientific name for the food or product of photosynthesis in plants whose chemical formula is C₆H₁₂O₆
Glucose.
It's the medium that best propagates sound because the particles in this state of matter are tightly packed together allowing the fastest propagation of sound.
Solid.
It's the organ system responsible for the gas exange in a living organism.
Respiratory system.
The two farthest icy planets in our solar system.
Uranus and Neptune.
The name of the chemical element from the periodic table whose chemical symbol is Hg and atomic number is 80.
Mercury.
It's the name of an object especially made of neodymium to attract magnetic objects only.
Magnet.