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chemical change
physical change
0* Celsius
protons, neutrons, and electrons
adding heat energy
changes in energy
density
Atom
Physical
Liquid
solubility
When every last molecule has converted to liquid
chemical
melting point
freezing point
matter
temperature and pressure
Pure substance (element)
Mixture
boiling point/ vaporization point
Chemical
Physical
Element
Chemical
chemical change (chemical reaction of iron, water, and oxygen)
causes a substance to change phases
What is the point at which a liquid turns into a solid?
causes a substance to sink or float in another substance
causes iron to rust
the subatomic particles that make up an atom
A pure substance
The point at which the temperature of melting water will rise above 0* Celsius
The smallest particle of matter that has all the characteristics of an element
the ability of a substance to be dissolved by another substance
This change doesn't change the identity of a substance
When two substances react with each other and create a new substance.
____ and ____ can cause the solubility of a substance to change
Chemical or Physical?
Chemical or Physical?
Density, solubility, melting point, color, and odor are all __ properties.
Making toast is this type of change.
If gas, heat or light is produced, it is a ____ change.
Pure substance or mixture?
causes atoms and molecules to take up more space and move faster
where a solid turns to a liquid
Pure Substance or Mixture?
Solid, liquid, or gas?
Anything that has mass and takes up space
when particles leave the liquid phase and become a gas
The temperature at which water both freezes and melts
| Description | Match: |
The smallest particle of matter that has all the characteristics of an element | Atom |
A pure substance | Element |
Anything that has mass and takes up space | matter |
the ability of a substance to be dissolved by another substance | solubility |
the subatomic particles that make up an atom | protons, neutrons, and electrons |
causes a substance to change phases | changes in energy |
causes a substance to sink or float in another substance | density |
causes atoms and molecules to take up more space and move faster | adding heat energy |
____ and ____ can cause the solubility of a substance to change | temperature and pressure |
causes iron to rust | chemical change (chemical reaction of iron, water, and oxygen) |
What is the point at which a liquid turns into a solid? | freezing point |
where a solid turns to a liquid | melting point |
when particles leave the liquid phase and become a gas | boiling point/ vaporization point |
The temperature at which water both freezes and melts | 0* Celsius |
The point at which the temperature of melting water will rise above 0* Celsius | When every last molecule has converted to liquid |
This change doesn't change the identity of a substance | physical change |
If gas, heat or light is produced, it is a ____ change. | chemical |
Density, solubility, melting point, color, and odor are all __ properties. | Physical |
When two substances react with each other and create a new substance. | chemical change |
Making toast is this type of change. | Chemical |
Pure Substance or Mixture? | Pure substance (element) |
Solid, liquid, or gas? | Liquid |
| Mixture |
Chemical or Physical? | Chemical |
Chemical or Physical? | Physical |
