Geocentric and Heliocentric model
What does Geo mean?
Earth
Although it's not the closest planet to the Sun, its thick atmosphere gives it the hottest surface temperature which planet is this?
Venus
What is classified as a shooting star?
A meteor
What does Gravity do?
Gravity causes objects with mass to attract one another, holding us to the Earth, keeping the Earth in orbit around the Sun, and forming celestial bodies like planets and stars.
This is the name for the path Earth takes as it revolves around the Sun?
What is an orbit
What does Helio mean?
Sun
What planet is known for its prominent rings, this planet is so light that it would float in a bathtub if you could find one big enough?
Saturn
What is a meteor?
A small, rocky object, often called a "shooting star," is burning up as it enters Earth's atmosphere.
What does inertia do?
Inertia is the property of an object to resist changes in its state of motion.
What is a spring tide?
The combined gravitational pull of the Sun and Moon during this alignment creates a "spring tide."
Who believed in the heliocentric model?
Nicolaus Copernicus
What planet is a gas giant has a famous Great Red Spot, a storm larger than Earth that has been raging for centuries?
Jupitar
What is a comet?
A comet is Often called a "dirty snowball," this object forms a glowing coma and tail as it approaches the sun.
What is an example of Gravity?
An example of gravity is an apple falling from a tree to the ground, a ball tossed in the air returning to the earth, or a person walking on the ground without floating away.
What are the seasons?
This is the name for the path Earth takes as it revolves around the Sun.
What is retrograde motion?
This optical illusion, where planets appear to move backward in the night sky, is explained with complex epicycles in the geocentric model but is a natural consequence of planetary speeds in the heliocentric model.
Unlike the other planets, this gas giant is tilted on its side and experiences extreme seasons which planet is this?
Uranus
What is Ceres?
This is the largest object in the main asteroid belt, and is also classified as a dwarf planet.
What is an example of inertia?
An example of inertia is when you are a passenger in a car, and the driver suddenly applies the brakes.
What is precession?
This is the phenomenon where Earth's slow wobble causes a gradual change in the direction its axis points in space.
What are epicycles?
The Ptolemaic model used this mathematical invention of "circles within circles" to explain the apparent retrograde motion of the planets.
What planet is formerly considered the ninth planet, this celestial body was reclassified as a dwarf planet in 2006, leading to a major controversy in the scientific community?
Pluto
What is glycine?
This amino acid, a key building block for life, was controversially found on Comet Wild 2 by NASA's Stardust mission and confirmed by the Rosetta mission on Comet 67P/C-G.
Why is gravity and inertia important to us?
Gravity is important because it holds us to the Earth, keeps the atmosphere in place, and causes celestial bodies to orbit, while inertia explains why objects resist changes in motion, enabling everything from stable walking on Earth to the consistent movement of planets in orbit. Together, gravity and inertia make Earth habitable, keep the solar system together, and allow for predictable motion in the universe.
What is the Milky Way?
Our star, the Sun, is just one of billions in this vast spiral galaxy.