THE UNIVERSE
What theory states that the universe began in a hot, dense state and expanded over time?
This process caused particles to collide and stick together as larger objects formed in the early solar system.
What is Accretion
This motion of Earth is directly responsible for day and night.
What is rotation
In this eclipse, the Moon is positioned between the Sun and Earth.
What is a Solar Eclipse
This process produces most of the Sun’s energy.
What is Nuclear fusion
What term means all space, time, matter, and energy?
What is Universe
This center of mass is the point around which two or more objects orbit.
What is Barycenter
This event marks the longest or shortest amount of daylight.
What is Solstice
In this eclipse, Earth is positioned between the Sun and Moon.
What is a Lunar Eclipse
This part of the electromagnetic spectrum is the only portion humans can directly see.
What is Visible Light
What is a large collection of stars, gas, and dust held together by gravity?
What is Galaxy
Mercury, Venus, Earth, and Mars belong to this group of small, rocky planets.
What is Terrestrial Planets
During this event, day and night are nearly equal in length.
What is Equinox
New Moon and Full Moon are associated with this tide pattern.
What are Spring Tides
These electromagnetic waves have the longest wavelength and lowest energy.
What are Radio Waves
What galaxy contains our solar system?
What is Milky Way
A planet speeds up as it approaches the Sun and slows down as it moves away. This is explained by this law.
What is Kepler's Second Law
During this Moon phase, the Moon is approximately between Earth and the Sun.
What is New Moon
First Quarter and Third Quarter are associated with this tide pattern.
What are Neap Tides
This atmospheric layer absorbs much of the Sun’s harmful UV radiation.
What is the Greenhouse Effect
As the universe expands, what happens to the distance between many galaxies?
What is They become farther apart.
Most planets orbit in nearly the same plane and direction because they formed from this structure early in solar-system formation.
What is a rotating flattened disk
Earth’s seasons are caused by revolution combined with this feature of Earth.
What is Axil Tilt
This term means the difference between high tide and low tide.
What is Tidal Range
This term describes how much sunlight a surface reflects.
What is Albedo