The Universe
The universe is _____________ years old
What is 14 billion years old?
All stars are born in a ______________.
What is a nebula?
The center of our solar system.
What is the sun?
What is gravity?
This is the scientists who is seen as the father of astronomy. They invented the telescope.
Who is Galileo Galilei?
The universe started with the ______________.
What is the Big Bang?
Our sun is a _________________ star.
What is a small-medium sized yellow dwarf star?
The number of planets in the solar system?
What is eight?
Is the sun's gravity stronger on Earth or Neptune?
What is Earth? (Because the distance is smaller.)
This astronomer was the first to propose that the Earth is a sphere.
Who is Aristotle?
Is the universe expanding or shrinking?
What is expanding?
When yellow dwarf's die, they explode in a ______________.
What is a supernova?
Something the first four planets have in common?
This is measured in kilograms.
What is mass?
This astronomer built many instruments that accurately studied the stars and planets.
Who is Tycho Brahe.
The universe is mostly _________. (Matter/Energy or Dark matter/Dark Energy)
What is dark matter and dark energy?
This is what we call a group of stars which form a recognizable pattern in the night sky.
What is a constellation?
Something the last four planets have in common?
What is giant in size, mostly gas, large rings, many moons?
Which planet has the largest gravity?
What is Jupiter?
This astronomer created the first heliocentric model of the solar system (placing the sun at the center).
Who is Nicolaus Copernicus?
Astrology is _______________.
What is pseudoscience? (Or not science)
Giant stars leave behind a _______________ when they die and explode.
What is black hole or neutron star?
These two forces keep everything in orbit around the sun.
What is gravity and inertia?
This is why the planets orbit the sun and not the other way around.
The sun is by far the most massive thing in our solar system. It has the most mass which means that is has the most gravity. This will force the other planets to be drawn towards it, orbiting the sun.
This astronomer developed the three laws of planetary motion: ellipses have eccentricity, speed of planets changes depending on distance from the sun, and Astronomical Units.
Who is Johannes Kepler?