6.1 Matter
A Chemical property of wood is its
ability to burn
A ______ property can be observed without changed the substance into a different substance.
physical
The _____, or center of an atom, is made of protons and neutrons.
neucleus
The formula NaHCO3 stands for a compound that combines how many elements?
4
How many atoms of each element are in rust - Fe2O3
When water is a solid, it is
in a frozen state.
Exhaust from a car is an example of matter in the ____ state.
gaseous
Substances that cannot be changed or separated into other kinds of substances.
elements
Mixtures are unlike compounds because they contain substances that are not joined _____.
chemically
Name the common examples of a compound and an example of a mixture that we discuss in class.
Anything that has weight and takes up space is
matter
DOUBLE JEOPARDY - A lake is an example of matter in the _____ state.
liquid
Smallest part of an element.
atom
Usually heat or electricity is needed to separate elements in a _____.
compound
Name 4 physical properties.
color, weight, shape, smell, size, taste, feel, state
Matter usually exists on earth as a _____, liquid, or gas.
solid
Color, taste, and size are all examples of _____.
physical properties
The nucleus of an atom is made up of _____ and _____.
protons and neutrons
The parts of a ______ can be separated by physical means.
mixture
Name the 3 physical properties that are the same and the 1 property that is different with salt and sugar.
same - color, state, size
different - taste
A ______ property is a characteristic that describes how a substance changes into a different substance.
chemical
Name three types of physical properties.
varies
DOUBLE JEOPARDY - Name 3 common elements.
varies
The formula H2O tells you it is a compound that combines two atoms of _____ and one atom of _____.
hydrogen and oxygen
Characteristic that describes matter.