Science - Key Words - Example QUESTIONS | Week 29 - 32 |

A Compound is a-?

A substance made from two or more different elements that have been chemically joined.

A Mixture is a-?

A compound is made up of two or more chemical components that are not chemically joined.

Composition Meaning?

A substance consisting of two or more substances mixed together.

What does Separation Mean?

The state of being separates a point, line or means of division.

What is a Physical Reaction?

The starting substances in each of these processes are not changed chemically but only physically.

What is Chemical Reaction?

Is when the atoms in an element or compound are rearranged and connected together in a different way.

What does it mean when something is Reversible?

When something is capable of being turned back into it’s original state.

What are the properties of a Solid?

Difficult to compress, can’t be poured, can’t change shape, particles can only vibrate.

What are the properties of a Liquid?

Difficult to compress, can be poured, can change shape & volume, particles can flow over each other.

What are the properties of a Gas?

Easy to compress, can change volume, particles are free to move within the given space.

What is an Atom?

An atom is the smallest particles of an element that can exist.

What is an Element?

An Element are many of the same atoms joined together.

What is an Compound?

A Compound is two or more elements chemically joined together.

What is a Mixture?

A Mixture is a group of different atoms or compounds not chemically joined together.

How would you “supposedly” separate the circled Mixture?

You could use a magnet to attract the Iron fillings to separate the two.