This force causes objects to be pulled towards Earth's center.
gravity
This is the largest planet in our solar system
Jupiter
What causes tides on Earth?
The gravitational pull of the Moon (and the Sun).
Name the four gas (outer) planets.
Jupiter, Saturn, Uranus, Neptune
This is the most abundant gas in Earth's atmosphere.
Nitrogen
The amount of time it takes for Earth to make one full revolution around the sun.
365.25 days or 1 year
Cold air is more dense than warm air, so does it rise or sink?
cold air sinks
Name 3 phases of the water cycle.
Evaporation, condensation, precipitation, transpiration, run-off, infiltration, collection
How many of our Moons can fit across the diameter of Earth?
About 4
Weather instrument that measures temperature
Thermometer
Name the four terrestrial (inner) planets
Mercury, Venus, Earth, Mars
The amount of time it takes for Earth to make one full rotation on its axis.
24 hours or 1 day
This is the condition of the air (atmosphere) at a location at the present moment.
Weather
This is the thin layer of gases that surrounds the Earth.
The atmosphere
What does the nucleus contain that makes it the "brain" of the cell?
DNA
This is the source for almost all energy on Earth.
Sun
These cell organelles turn protein into energy for the cell.
mitochondria
This planet is considered Earth's "twin".
Venus
Name 2 cell parts that plant cells have that animal cells do not.
cell wall, chloroplast, large central vacuole
When the Moon passes between the Sun and Earth, some people on Earth see what kind of eclipse?
Solar
The average weather patterns over long periods of time in a place or region is called this.
climate
How many Earths could you fit between the Earth and the Moon?
about 30
This is the weather instrument that measures air pressure.
Barometer
Cells undergo this type of reproduction when your break a bone.
Mitosis
Your personality is formed by these two things.
genetics and environment (nature and nurture)