Irwin Science Study Flashcard

Front

What is the Heliocentric Theory?

Back

The Heliocentric Theory states that the Sun is at the center of the solar system, and the planets, including Earth, revolve around it.

Front

What does the Geocentric Theory propose?

Back

The Geocentric Theory proposes that the Earth is the center of the universe, and all celestial bodies, including the Sun and stars, revolve around it.

Front

Who was Galileo and what was his contribution to astronomy?

Back

Galileo was an Italian astronomer who improved the telescope and used it to provide evidence supporting the Heliocentric Theory.

Front

What is the Big Bang Theory?

Back

The Big Bang Theory is the leading explanation about how the universe began, proposing that it started from a singular point and has been expanding ever since.

Front

Who developed the Big Bang Theory?

Back

The Big Bang Theory was developed by Edwin Hubble.

Front

What is the difference between the Heliocentric and Geocentric models?

Back

The Heliocentric model places the Sun at the center of the solar system, while the Geocentric model places the Earth at the center.

Front

What role did the telescope play in astronomy?

Back

The telescope allowed astronomers to observe celestial bodies more clearly, leading to significant discoveries that supported the Heliocentric Theory.

Front

What evidence did Galileo provide for the Heliocentric Theory?

Back

Galileo observed the phases of Venus and the moons of Jupiter, which supported the idea that not everything revolves around the Earth.

Front

What is an example of a celestial body that orbits the Sun?

Back

An example of a celestial body that orbits the Sun is Earth.

Front

What is the significance of Hubble's observations?

Back

Hubble's observations led to the understanding that the universe is expanding, which supports the Big Bang Theory.