Stars
This is the process that powers stars by fusing hydrogen into helium.
👉 What is nuclear fusion?
This explains how galaxy collisions rarely involve stars actually hitting each other.
👉 What is the vast distances between stars make direct collisions extremely unlikely?
This is the largest planet in our solar system.
👉 What is Jupiter?
These planets formed in the inner solar system where only these materials could remain solid.
👉 What are metals and rocky material?
This force is responsible for keeping planets in orbit around the Sun.
👉 What is gravity?
This determines a star’s life cycle?
👉 What is mass?
This is the type of galaxy that has arms and a central bulge, like the Milky Way.
👉 What is a spiral galaxy?
This gas giant is famous for its large ring system.
👉 What is Saturn?
What is the hottest planet in our solar system, and why?
👉 What is Venus because of its thick atmosphere of CO2 (greenhouse effect)?
According to Isaac Newton, gravitational force depends on these two variables.
👉 What are mass and distance?
This stage occurs when a medium-sized star like the Sun expands after using up hydrogen.
👉 What is a red giant?
This galaxy is shaped like an egg.
👉 What is an elliptical galaxy?
Which of the gas giants have rings?
👉 What is they all have ring systems?
Which of the terrestrial planets have 2 moons?
👉 What is Mars?
This is why planets move faster when they are closer to the Sun in their orbit.
👉 What is stronger gravitational pull increases speed?
👉 What is they have a shorter linear path?
This is why massive stars have much shorter lifespans than smaller stars.
👉 What is they burn fuel much faster due to higher core pressure and temperature?
This type of galaxy has no definite shape and often appears chaotic.
👉 What is an irregular galaxy?
Gas giants are made up mostly of these two gasses.
👉 What is hydrogen and helium?
Terrestrial planets have few or no moons because of this.
👉 What is lower mass and weaker gravitational pull?
True/False:
The Earth is pulling on the Sun
👉 What is True?
After a supernova, a very dense object can form that has gravity so strong not even light can escape.
👉 What is a black hole?
What were Edwin Hubble's two discoveries?
What is there are many other galaxies and space is expanding?
This explains why gas giants have many moons compared to terrestrial planets.
👉 What is their strong gravity allows them to capture and retain many objects?
This explains why terrestrial planets lack rings, while gas giants have them.
👉 What is they do not have strong enough gravity to maintain large ring systems
If Earth were moved farther from the Sun, this combination of changes would occur.
(Gravity, speed, & temperature).
👉 What is decreased gravitational force, slower orbital speed, and lower temperatures?