Unit 3
Heliocentric model can be described as
What is earth and the other planets orbit the sun.
Is the path that a body follows as it travels around another body in space.
What is orbit
when a planet orbits around the sun this is known as
What is revolution
An event during which one object in space casts a shadow onto another.
What is an Eclipse
Why is pluto considered to be an dwarf planet?
Dwarf Planets are found in the asteroid belt and Kuiper belt. They are worlds that are too small to be considered full-fledged planets. They also have weak surface gravities.
This is a force of attraction between objects that is due to their masses and the distances between them.
What is Gravity
These are human-built objects orbiting the Earth and other planets in the Solar System.
What is Artificial satellites
this planet has 1 satellite
what is Earth
The gravitational pull of the moon and sun on the surface waters on Earth create ____
What are tides
What causes day and night to occur?
As Earth rotates, different sides of Earth Face toward or away from the sun, causing day and night.
It rotates 25 days at the equator, and 35 days at the poles.
What is the Sun
Is the distance between the sun and earth. Earth is approximately 1 _____
Astronomical Unit
means the moon is growing.
What is waxing
As the moon revolves around Earth, the portion of the moon that reflects sunlight back to earth changes, causing the moon’s appearance to change.
What are Lunar phases
What is the difference between jovian and terrestrial planets?
Terrestrial planets are: mercury, venus , earth and mars. They are small, rocky planets that orbit closest to the sun.
Gas giants- have deep, massive gas atmospheres, which are made up mostly of hydrogen and helium.
This planet is Largest planet in the solar system. Has the Great Red Spot.
What is Jupiter
Is an optical instrument using lenses, curved mirrors or a combination of both to observe distant objects by their emission, absorption, or reflection of electromagnetic radiation.
What is telescope
This planet has a protective atmosphere consisting predominantly of: nitrogen and oxygen, and an a magnetic field.
What is the Earth
Any time less than half, the moon is lit by the sun.
What is Crescent
Why do seasons occur?
Seasons are caused by a combination of the tilt of Earth on its axis, the curvature of Earth’s surface and the angle at which sunlight strikes the surface of Earth during its annual revolution around the sun.
The planets in correct order
What is Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus and Neptune
Small body of ice, rock , and dust that follows a highly elliptical orbit around the sun. It also gives off gas and dust.
What is an Comet
The correct order of the moon phases
An invisible force that pulls objects toward each other.
What is Gravitational Pull
What causes the moon to appear like it changes shape?
The phases of the Moon depend on its position in relation to the Sun and Earth. As the Moon makes its way around the Earth, we see the bright parts of the Moon's surface at different angles. These are called "phases" of the Moon.