A. Matter Flashcards
What does “classifying” mean?
To place things in groups based on their common properties.
What is “matter”
The substance that every substance is made of.
What are the 3 states of matter?
What is “particle theory” ?
Using the arrangement of particles in solids liquids and gases to explain their properties
Which state of matter is shown?
A solid
Which state of matter is shown?
A liquid
Which state of matter is shown?
A gas
What are 6 properties of solids?
What are 6 properties of gases?
What are 6 properties of liquids?
What does “flow” mean?
The ability of particles to move around one another.
What is compression?
Using force to squeeze the same number of particles into a smaller volume.
Why can’t solids and liquids be easily compressed?
Beacuse the particles are already very closely packed together
What is density (S1)?
number of particles
area
Place the 3 states in order of density starting with most dense.
- solids
- liquids
- gases
Which experiment shows that liquids have spaces?
Water and alcohol mixing
What is diffusion?
The particles of one substance moving through the particles of another
In which state does diffusion happen most quickly?
Gas
What was diffusion in liquids experiment
What was diffusion in gases experiment?
Plaace the 3 states in order of diffusion speed.
- gases
- liquids
- solids
What is needed for diffusion to happen in matter?
- Particles moving
- Spaces for particles to move into
What is expansion?
Same number of particles with an increse in volume
What is contraction?
Same number of particles with a decrease in volume
Expansion in solids experiment
Experiment to show expansion in gases
The particles gain energy and can move more quickly.
Expansion in liquids experiment
Example of expansion in solids in everyday life.
Expansion joints in bridges.
Example of expansion in liquids in everyday life
What is a bi-metallic strip?
2 metals joined together with different expansion rates
What happens when a bimetallic strip is heated?
The free end bends upward.
How does a bi-metallic strip fire alarm wor?
What are the changes of state for water?
What happens during “Melting” ?
A solid turns into a liquid as the particles gain heat energy and vibrate more vigorously
What happens during “Evaporation” ?
A liquid turns into a gas as the particles gain heat energy and move more quickly
What happens during “condensation” ?
A gas turns to a liquid as the particles lose heat energy and move less quickly
What happens during “Freezing” ?
A liquid turns to a solid as the particles lose heat energy and move less quickly
Where can water found in soil surface move to?
Where can water in plants move to
