Show:
Earth
Stars and Galaxies
Cells and Organisms
Rocks
Alive, Or Is It?
100
The outermost layer of the Earth.
What is the crust?
100
Bodies made of hydrogen and helium gas.
What are stars.
100
The smallest unit needed for life.
What is a cell?
100
A naturally occuring solid mixture of one or more minerals and organic matter.
What is a rock?
100

Anything that causes a reaction or change in an organism.

 stimulus

200
The center of the Earth.
What is the core?
200
Clouds of dust and gas that create the next generation of stars.
What are nebulas.
200
It is made up of one or more cells.
What is an organism?
200
A naturally formed solid matter that has crystalline structure.
What is a mineral?
200

The passing of traits from one generation to the next.

heredity

300
The layer of the Earth between the crust and the core.
What is the mantle?
300
Vast groupings of stars.
What are galazies.
300
It stores the DNA of the organelle.
What is the nucleus?
300

Rocks that form when hot, liquid rock (magma) cools.

 igneous rocks

300

Water, air, a place to live, and food.

 the basic needs of every organism

400
Large pieces of the lthosphere that move around on the Earth's surface.
What are tectonic plates?
400
The planet closest to the Sun.
What is Mercury.
400

It controls all of the life processes of the cell.

DNA

400

Rocks whose structure, composition, and texture have changed from those of the original rock.

metamorphic rocks

400

When two parents produce offspring that share characteristics of both parents.

sexual reproduction

500
Vibrations that move away from an earthquake.
What are seismic waves?
500
The planet that is no longer a planet.
What is Pluto?
500

Animals, plants, and humans.

multicellular organisms

500
Rocks formed when grains of rock or minerals (sediments)are buried, squeezed together, and cemented by minerals.
What are sedimentary rocks?
500

When a single parent produces offspring that is identical to the parent.

What is asexual reproduction?