Solar System #1
Planets orbit around _______
The Sun
Which planet has a watery surface?
Earth
the planets with less mass _____
have a decrease in gravitational force
what happens to an object's kinetic energy when it is hot and when it is cold?
hot = fast
cold = slow
what is a planet?
Name the planet closest to the sun.
Mercury
According to Kepler's second law, the closer a planet is to the sun, the ___________ it moves and has a _____ gravitational force.
faster and greater
what is keeping our planets in orbit?
gravity
True or false? The solar system is completely formed and it took 4.6 billion years.
False, the solar system is still forming.
what is the habitable zone?
the distance from a star at which liquid water could exist on orbiting planets' surfaces
Name outer planets
Jupiter, Saturn, Uranus, Neptune
name the planets in order
mercury, venus, earth, mars, jupiter, saturn, uranus, neptune
What is the name of the closest star to earth?
The Sun
The distance between the Earth and the Sun, used as a standard measurement.
Astronomical Unit.
what is a comet?
dusty, metal, rock made of an icy shell orbiting the Sun, turns from a solid to a gas
name the inner planets
mercury, venus, earth, mars
what are the main components we need to live on a planet?
water, atmosphere, sunlight, temperature
What separates the inner and outer planets?
how is thermal energy transferred from one object to another?
hot to cold
what is an asteriod?
rocks orbiting between mars and jupiter
moons orbit around _______
planets
why is earth able to support life?
According to Kepler's First Law, planets are moving in these types of paths.
Elliptical
give definitions and examples of:
conduction
convection
radiation
conduction = touching an object
convection = circulating warm and cold
radiation = heat waves
what is a meteor?
small pieces of rocks that becomes a streak of light when they fall to Earth's atmosphere