States of Matter
How many states of matter are there?
3
What is the definition of matter?
Anything that has mass and takes up space.
What is the process called when a solid changes to a liquid?
Melting
Liquid
True of False? Molecules are always moving?
True
What are the 3 states of matter?
Solid, Liquid, Gas
What is the definition of physical change?
A change in appearance, shape, size. No new substance is created.
What is the process called when a liquid changes to a gas?
Evaporation
Which state of matter has no definite shape or volume?
Gas
Give an example of sublimation.
Dry Ice
Give two examples of a liquid
Answers will vary
What is the definition of chemical change?
A change where a new substance is created, often revealing heat, light, sound, smell. Cannot be reversed.
What is the process called when a gas changes to a liquid?
Condensation
Name the properties of a solid.
Definite shape and definite volume.
Give an example of deposition.
Frost
Give two examples of a gas
Answers will vary
What is the definition of mass?
How much matter is in an object.
What is the process called when a solid changes to a gas?
Sublimation
Which state of matter takes shape of the container?
Liquid
Is dissolving salt in water a physical or chemical change? Explain why.
Physical change because you can separate the salt and water by evaporating the water and leaving the salt to dry.
What is the 4th state of matter?
Plasma
What is the definition of volume?
The amount of space an object takes up.
What is the process called when a gas changes to a solid?
Deposition
Explain how the molecules are arranged for a solid.
Molecules are tightly packed together.
Is the process of milk turning sour a physical or chemical change? Explain why.
Chemical change because a new substance is formed and it cannot be reversed. It creates a new smell and texture.