Vocabulary
To observe
Use one of the five senses to gather information about something.
An atom
A small piece of matter too small to be seen
What is a test mixture?
The food colorant
The particles are packed tightly together so they don't move much. It has a definite shape.
Solide
Proof
A proof is sufficient evidence
A property
A property is what you can observe or measure something that helps you identify or describe it.
Molecules
Molecules are groups of atoms joined together
What is a medium
The paper
The particles are more loosely packed than and are able to flow around each other, giving it an indefinite shape.
Liquide
Food scientist
A person who conducts research to develop or improve food products
What is nanotechnology?
nanotechnology is the study and application of extremely small things.
A substance
Substances are made of only one kind of molecule.
Chromatography
Chromatography is a technique that scientists use to separate mixtures into their component substances.
The particles have a great deal of space between them and have high kinetic energy. It has no definite shape or volume.
Gaz
Model
Models help us understand things that we cannot directly observe.
To attract
To pull at an object without even touching it
Matter is...
Anything that has mass and takes up space
What is a solvent
The water
It is not a common state of matter here on Earth, but it may be the most common state of matter in the universe.
Plasma
Evidence
Scientists support their explanations with evidence.
What is a centrifuge?
A machine that separates plasma that can be used to help sick or injured people.
A mixture
A mixture is made of more than one substance.
Gaz chromatography
Is a technique used to separate the chemical components of a sample mixture.
What is a phase of matter?
One of the four principal conditions in which matter exists-solid, liquid, gas, and plasma
Inference
Inferences are conclusions that we can draw from what is known and observable.