Vocab
A group of atoms joined together in a particular way
Molecule
Water that is underground
Groundwater
A set of interacting parts forming a complex whole
System
The moment when two objects hit each other
Collision
The ability to make things move or change
Energy
A measure of how hot or cold something is
Temperature
To reach a conclusion using evidence and reasoning
Infer
The total kinetic energy of all the molecules that make up a sample
Thermal Energy
To move from one object to another or one place to another
Transfer
Tiny organisms that are made of a singe cell
Bacteria
A heating unit that stores and warms water
Water Heater
Anything that has mass and takes up space
Matter
When something stays mostly the same over time
Stability
The energy that an object has because it is moving
Kinetic Energy
When something becomes different over time
Change
A small part that is meant to show what the whole is like
Sample
A number that summarizes a set of data and that can be computed by adding all the numbers in a list and then dividing by the number of numbers in the list
Average
A balanced state in which a system is stable
Equilibrium
To make something safe to eat or drink by heating it
Pasteurize