space science
what is the closet planet to the sun
Mercury
What is the center of earth called.
inner core
What is "streak"?
color of a mineral's powder
what are rocks made up of
minerals
What is the "brain" of the cell?
nucleus
what is the furthest planet from the sun.
neptune
what is the inner core made of?
iron and some nickel
What is mineral cleavage?
mineral to break along planes
How do igneous rocks form?
cooling and solidification of molten rock
what is the difference between a plant cell and an animal cell?
cell wall
water is 71 percent of what planet
earth
What is the solid part of the Earth called?
lithosphere
What is the difference between cleavage and fracture?
Cleavage?
Cleavage is the tendency to break along smooth, flat planes, whereas fracture is an irregular or jagged break.
How does a rock become metamorphic?
extreme heat and pressure
What is the powerhouse of the cell?
mitochondria
what was the big bang
idea that the universe began as just a single point, then expanded and stretched to grow as large as it is right now.
How hot is the Earth's core?
as hot as the surface of the sun
Is ice considered a mineral?
yes
What is the defining feature of sedimentary rocks?
layers
What is the cell membrane?
controls what enters and leaves the cell
how long ago was the bigbang
13.8 billion years
How was the earth created.
when gravity pulled swirling gas and dust in to become the third planet from the Sun.
What is the least reliable property for identification?
Color
Why are fossils mostly found in sedimentary rocks?
Igneous rocks are formed from molten lava (too hot for fossils), and metamorphic rocks undergo intense pressure that typically destroys fossil evidence.
What is a food web
consists of all the food chains in a single ecosystem