Stars
The first stage in the development of all stars.
What is protostar?
The movement of a planet in its orbit
What is revolution?
The big bang theory suggests that the universe is always doing this.
What is expanding?
The part of the sun where nuclear fusion occurs.
What is the core?
The force that causes tides.
What is gravity?
The property that determines a star's life cycle as it develops.
What is mass?
The orbits of planets take this shape.
What is elliptical?
Probably the first element.
What is hydrogen?
The part of the sun where sunspots are located.
What is the photosphere?
What is a spring tide?
The final phase for a star that is 8 times the mass of the sun.
What is a neutron star?
A planet moves ________ the closer it is to the sun in its orbit.
What is faster?
The scientific discovery of Edwin Hubble.
What is redshift?
The outcome if Earth's axial tilt changed to zero.
What is no different seasons?
The cause of moon phases.
What is the amount of the sunlit side of the Moon that faces Earth?
The color of the hottest stars.
What is blue?
Kepler's law that explains the speed of orbiting objects.
What is Kepler's second law?
The discovery that confirmed how matter expanded during the Big Bang Theory.
What is cosmic microwave background radiation?
Occurs when the moon is between the Sun and Earth.
What is a solar eclipse?
Occurs when the Earth is between the Sun and the Moon.
What is a lunar eclipse?
The reason that oxygen and iron exist.
What is nuclear fusion?
The orbit of a planet with an eccentricity of zero would take this shape.
What is a circle?
The change in frequency of wavelength when an object is moving away from the observer.
What is decreasing?
The area in which you could observe a full solar eclipse.
What is the umbra?
Observation that suggests that the Moon formed from material ejected during a collision of the early Earth with another planet.
What is the similarities between the Moon and Earth's mantle?