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29 terms

Types of Matter - 5th Grade Science

5th grade Science - MacMillan/McGraw-Hill Chapter 7 Types of Matter
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the smallest particle of an element that retains the properties of that element
atom
A change that causes a new kind of matter to form with different properties.
chemical change
A way to write a compounds name using symbols.
Chemical Formula
A substance formed by the chemical combination of two or more elements held together by chemical bonds that cannot be separated by physical means.
Compounds
A measure of how tightly matter is packed in a given amount of space.
Density
a pure substance that cannot be broken down into any simpler substances.
element
A physical combination of two or more substances that does not form a new substance.
mixture
a particle that contains two or more atoms joined together.
molecule
A chart that shows all the known elements and their properties.
periodic table
A mixture that is blended so completely that it looks the same everywhere.
solution
The prcoess in which mater changes state form a solid directly into a gas.
sublimation
The substance in a solution that dissolves.
solute
The substance in a solution into which other substances dissolve.
Solvent
A substance that conducts heat and electricity.
metals
a mixture where separate particles are big enough to see.
heterogeneous mixture
a mixture that look the same throughout.
homogeneous mixture
all matter is made up of ______________ .
atoms
The number of protons in an atom is the ______________.
Atomic number.
When are Solutions formed?
A substance dissolves in a solvent, like sugar dissolves in water.
A _____________ is formed when the atoms of two or more elements combine.
compound
What three elements that make up most of living things?
the three elements are carbon, hydrogen and oxygen
_________ is an example of a compound.
Rust, water, or carbon dioxide are examples of a compound.
What type of element makes most of the periodic table?
Most elements in the periodic table are metals
Solutions & heterogeneous substances are similar because...
they are both mixtures of two different substances.
Solutions and heterogeneous mixtures are different because...
In solutions you can't see the different particles & in a heterogeneous mixture u can.
What 4 things are listed on the periodic table?
A element name, it's atomic number, it's abbreviation, and metals-metalloids-nonmetals.
How are elements organized in the periodic table?
The atomic numbers and families.
What are four or more physical properties of matter?
Weight, mass, volume, shape, texture, & color.
What is the chemical formula four water? (Explain what the letters and numbers mean.)
H,2,O, the H stands for hydrogen & the 2 after the H says that there are two hydrogen atoms, the O stands for oxygen since there is know number behind the O there is just one oxygen atom.