Matter Study Guide Flashcards
Define, Matter
Matter is anything that takes up space (volume) and has mass (weight).
What are the 3 states of matter?
Solid
Liquid
Gas
All matter is made up of 2 things…
Atoms and molecules
What is sublimation?
When a solid turns into a gas.
Like dry ice in our sink
What is melting?
When a solid turns into a liquid.
Melting Point
The temperature where a material changes from a solid to a liquid.
Which state of matter is a powder?
Solid
Powders are collections of tiny pieces of solids.
Each tiny piece keeps its own shape, even though the collection may take the shape of a container.
Which 3 characteristics define Solids?
Solids are a state of matter that:
- Shape - Have a definite shape
- Space - Takes up a definite amount of space
- Volume - The volume does not change
True or False
Some solids are transparent.
True
Which 3 characteristics define Liquids?
Liquids are a state of matter that:
- Shape - Do not have a definite shape
- Space - Takes up a definite amount of space
- Volume - The volume does not change
When a solid is at rest it _________________
whether or not it is in a container
Keeps its shape
When a liquid is at rest it ____________________
and ______________________.
Fills the bottom of its container (at rest)
and Flows freely when poured.
What happens to the shape of a liquid in a container?
It takes the shape of the container.
What happens when we move liquids?
They can be poured, scooped and can make waves.
True or False, Liquids can be compacted into a smaller amount?
False
Liquids cannot be compacted into a smaller amount.
True or False, liquids can be transparent or opaque?
True
Liquids can be transparent like water or opaque like melted ice cream.
If a liquid in a container is not being moved, it’s surface seems ____________________ and ___________________.
level and flat
Think about water in a glass.
The surface looks level and flat.
Which 3 characteristics define Gases?
Gases are a state of matter that:
- Shape - Do not have a definite shape
- Space - Do not take up a definite amount of space
- Volume - Changes, can be compressed
In a container gases will…
Expand to fill any available space.
True or False, many gases are invisible?
True
Air is an example of an invisible gas.
True or False, Gases can be compressed?
True
Gasses can be squeezed into a smaller container.
Like air in a balloon.
What is Condensation?
When a gas changes to a liquid.
Like water vapor condensing into water droplets on the bathroom mirror.
When gases are in liquids they…
Form bubbles.
A bubble of gas under water has _______________ and _________________ water out of its way.
Volume, Pushes
The bubble has Volume and Pushes water out of its way.
What is Dew?
Water vapor from the air that has condensed on surfaces that are colder than air.
Like drops of dew (water) on the grass outside that get our shoes wet on the way to the bus stop.
Evaporation
When a liquid changes to a gas.
Like boiling water becoming water vapor or a puddle evaporating on the sidewalk.
