This is anything that has mass and takes up space.
MATTER
The layer of Earth where we live.
crust
Force that pulls objects toward Earth.
The basic unit of life.
cell
The closest star to Earth.
Sun
This state of matter has a definite shape and volume.
SOLID
This instrument measures earthquakes.
seismograph
Unit used to measure force.
Newton
The process plants use to make food.
photosynthesis
The planet known as the Red Planet.
Mars
Energy of motion is called this.
KINETIC ENERGY
The movement of water through evaporation, condensation, and precipitation.
water cycle
A push or pull on an object.
force
Organisms that make their own food.
producers
The galaxy we live in.
Milky Way
The process where liquid turns into gas.
EVAPORATION
Molten rock beneath Earth’s surface.
magma
nergy stored in an object due to position.
potential energy
The organ that pumps blood.
The force that keeps planets in orbit.
gravity
This law states energy cannot be created or destroyed.
Law of Conservation of Energy
The boundary where tectonic plates meet.
plate boundary
The speed of light is approximately this value.
3 × 10⁸ m/s
The system responsible for sending messages in the body.
nervous system
A rock from space that burns in Earth’s atmosphere.
meteor