MATTER SOL 5.4

If you put water (a liquid) into an ice cube tray and put it in the freezer, what state would it become eventually?

A SOLID

When we change the size, shape, or state of matter, what kind of change are we making?

Physical Change

When no new matter is being formed, what kind of change has been made?

Physical Change

What is water an example of?

A Liquid Compound (H2O)

When we light a match, we are showing what type of change?

Chemical Change

When we melt an ice cube, what kind of change are we making?

Physical Change

When we mix baking soda and vinegar, what type of reaction do we see?

Chemical Reaction

What scientific tool is used to measure volume?

Graduated Cylinder

What scientific tool is used to measure mass?

A Balance

As heat is added to water and it starts to boil, what happens to the water molecules?

They speed up and the distance between them gets greater.

What has two or more KINDS of atoms put together?

Compounds

Put these in order from smallest to largest: Compounds Atoms Molecules

Atoms Molecules Compounds

An atom is the smallest part of a _____________?

An element

Everything that has mass and takes up space is called what?

Matter

Substances like WATER and SALT that are all mixed together are called what?

Solutions

Every time we change matter from one state to another, what is ALWAYS present?

Heat Energy

What does MOST matter do when it is cooled?

It contracts

What does contract mean?

(Molecules get closer together) Get smaller (Molecules get closer together)

What does EXPAND mean?

(Molecules father apart) Get larger (Molecules father apart)

A liquid has definite ___________ but no definite ___________.

Volume Shape

A solid has a definite _______ and a definite ________.

Shape Volume

What two elements make up water?

Hydrogen and Oxygen

When a solid dissolves in water, what does the mixture become?

A Solution

In what state of matter do the molecules move the least in?

A Solid

A GAS has no definite _________ and no definite __________.

Shape Volume

When we mix things together and they KEEP their own properties (we can SEE and SEPARATE the parts), what do we have?

A Mixture

In what state of matter do the molecules move the most in?

Gas

If we put some Kool-Aid in water and stirred it until it dissolved, how could we REVERSE what we did? (How could we get the two separated?)

(So the water would evaporate) Boil it (So the water would evaporate)

What is the freezing point of water?

0 degrees Celsius 32 degrees Fahrenheit

What is the boiling point of water?

212 degrees Fahrenheit 100 degrees Celsius

What is density?

How tightly packed the matter is

What is volume?

How much space the matter takes up