Physical science Chapter 1
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Matter
Anything that mass and takes up space
Anything that has mass and takes up space
Matter
The study of matter and how matter changes
Chemistry
Single kind of matter that is pure meaning it always ha stage came composition
Substance
What properties describe matter
Physical and chemical properties
Physical properties
Characteristics of a substance that can be observed without changing it into another substance
Characteristics of a substance that describes its ability to change into different substances
Chemical properties
Examples of physical properties
Melting, freezing, dissolving, color, size
What type of property is flammability
Chemical property bc it describes an ability to turn into a different substance Paper+fire–> ash
What is matter made of?
All matter is made up of over 100 substances called elements
Substance that can not be broken down into other substances by chemical or physical means
Elements
How can you tell one element from another?
Each element can be identified by its specific physical and chemical property
Basic particle from which all elements are made
Atom
Force of attraction between two or more atoms
Chemical bonds
Group of two or more atoms held together by chemical bonds
Molecule
Substance made of two or more elements that are chemically combined in a set ratio
Compound
Shows the elements in the compound and the ratio of atoms
Chemical formula
When elements combine they form compounds with the same or different properties from the elements it came from
When elements combine Different properties are formed then the ones that each element had before
What are the types of mixtures
Heterogeneous or homogeneous
Made of two or more substances that are together in the same place but their atoms are not chemically bonded
Mixture
Heterogeneous mixture
Mixture in which u can visibly see the parts of the mixture and is separable
Homogeneous
Mix so evenly different parts are not seen
Methods of separating mixture
Distillation evaporation filtration and magnetic attraction
Measure of the force of gravity
Weight