A
How long does it take for the Earth to complete one trip around the sun?
365.25 days
Imaginary line that runs through Earth's poles is its _____.
axis
What object in our solar system is the largest?
the Sun
Red stars are the hottest or coolest?
Coolest
Name of our galaxy
Milky Way
Which is a property of a mechanical wave?
Amplitude - Weight - Color
Amplitude
Which electromagnetic wave type has the highest frequency?
visible light - microwaves - gamma rays
gamma rays
Which is a biotic factor that might limit a population of mice?
owls that prey on mice
water for the mice to drink
rocks in which the mice can hide in
owls that prey on mice
Which is true?
A green leaf reflects green light
A red apple reflects green light
A blue ball absorbs blue light
A green leaf reflects green light
Which is NOT a basic part of an electrical circuit?
conducting wires - transformer - source of electrical energy
transformer
A ______ is a species that influences the survival of many other species in an ecosystem.
keystone species
What object is at the center of the geocentric model?
Earth
What occurs when the moon moves through Earth's shadow?
a lunar eclipse
What characteristic do all inner planets have in common?
rocky surface
Another name for the outer planets.
Gas Giants
Digital signals rely on a coding system known as _______.
binary
A series of predictable changes that occur in a community over time is called ________.
succession
What is a straight series of connections among organisms that feed on each other?
food chain
What do consumers release as they break down food to obtain energy?
carbon dioxide and water
What is also called a dirty snowball because it is made of ice, rock, and dust?
comet
Seasons are caused by Earth's revolution (orbit) and
tilted axis
July 20, 1969
What is a group of single stars, star systems, star cluster, dust and gas bound together by gravity?
Galaxy
In longitudinal waves in a spring, the parts where the coils are close together are called ________.
compressions
In which type of interaction do both species benefit?
mutualism