What are some signs of chemical changes? List all 5.
Change in color, odor, and temperature as well as the formation of a gas or of a solid.
What is it called when a liquid becomes a solid?
Freezing
True or False: As you remove energy, the temperature decreases, causing particles to slow down.
True
True or False: As you add energy, temperature increases, causing for particles to move slowly.
False, temperature and energy do increase, but the particles begin to move faster rather than slower.
What two things can cause for matter to change from one state to another?
Adding energy or removing energy
This type of mixture is not uniformly mixed together, and you can see all of its parts.
Heterogeneous Mixture
What is it called when a gas becomes a liquid?
Condensing
What is it called when a solid becomes a liquid?
Melting
This state of matter has a definite shape and takes up a definite amount of space.
Solid
Anything that has mass and takes up space is called-?
Matter
This is a heterogeneous mixture in which all parts are so small that they do not settle out, like fog.
Colloid
This is the way light reflects, or bounces off, an object.
Reflectivity
This is the ability of matter to dissolve in a liquid.
Solubility
What are the two types of changes in matter?
Chemical and Physical Changes
This type of mixture is uniformly mixed together, meaning you cannot see all of its parts.
Homogeneous Mixture
This is a type of homogeneous mixture that could be represented by tap water or sugar water.
Solution
This type of change in matter is a change that produces a new type of matter with different properties from the original matter (think burning a match).
Chemical Change
This type of change in matter begins and ends with the same type of matter (think folding an origami bear).
Physical Changes
This state of matter has a definite volume, but it does not have a definite shape. It can be poured from one container into another.
Liquid
If you add heat energy to water, what will happen?
The water particles will begin to move quickly, causing them to move father apart and become a gas.
A measure of the amount of matter in an object is called-?
Mass
A Liquid has what kind of volume and what kind of shape?
Definite volume with no definite shape
What is it called when a liquid becomes a gas?
Evaporating
This state of matter has no definite shape or volume.
Gases
This is a characteristic that can only be observed when there is a change in the type of matter.
Chemical Property
This describes how energy, such as electricity or heat, can move through material.
Conductivity
This law states that matter is neither created nor destroyed during a physical change or chemical reaction.
The Law of Conservation of Mass
A characteristic of matter that can be observed and or measured is known as its _____ Property.
Physical Property
The amount of space an object takes up is called-?
Volume
This is a physical combination of two or more substances.
Mixture
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