Shared Flashcard Set

Details

5th Grade Physical Science Vocab
Do you know your vocab?
39
Science
5th Grade
02/04/2010

Additional Science Flashcards

 


 

Cards

Term
All matter is made of ____, which may combine to form ______.
Definition
All matter is made of atoms, which may combine to form molecules.
Term
Alloy
Definition
A solution of two or more metals, which has properties of its own. Examples of alloys are steel and bronze.
Term
Array
Definition
An arrangement of objects in rows and columns.
Term
Atom
Definition
The smallest particle of an element that has the chemical properties of that element.
Term

Atomic Number

 

[image] 

Definition
The number of protons in the nucleus of an atom.
Term
Boiling Point
Definition
The temperature at which a liquid changes to a gas or vapors.
Term
Chemical Property
Definition
Characteristics of matter that describes how it changes when it reacts with other matter.
Term
Chemical Reaction
Definition
A change in the arrangement of the atoms or molecules that come into contact with each other. This rearrangement causes one or more new substances to come into being.
Term
Compound
Definition
A substance made up of two or more elements that are chemically combined. For example, carbon dioxide is a compound that is chemically combined.
Term
Compounds
Definition
A substance made up of two or more elements that are chemically combined.
Term
Conductor
Definition
A material of an object through which heat, electricty, light, or sound can flow easily. Silver (Ag) and copper (Cu) are some of the most efficient metals and are often used in electronics.
Term
Differences in chemical and ___ properties of substances are used to separate mixtures and identify compounds.
Definition
Differences in chemical and physical properties of substances are used to separate mixtures and identify compounds.
Term
Ductile
Definition
Easily molded or shaped without breaking into pieces.
Term
During chemical reactions the ____ in the reactants rearrange for form products with different ___.
Definition
During chemical reactions the atoms in the reactants rearrange for form products with different properties.
Term
Electrical Conductivity
Definition
Ability to conduct electricity.
Term
Electron Microscope
Definition
A very powerful microscope that uses a beam of electrons, instead of light, to magnify objects that are too small to be seen with an ordinary microscope.
Term
Element
Definition
A substance that cannot be broken down into other substance.
Term
Freezing Point
Definition
The temperature at which a liquid becomes a solid.
Term
Gas
Definition
One of the three basic forms of matter. The molecules of a gas are constantly moving about.
Term
Liquid
Definition
One of the three basic forms of matter. Liquids are made up of molecules that can move short distances.
Term
Living organisms and most materials are composed of just a few ____.
Definition
Living organisms and most materials are composed of just a few elements.
Term
Malleable
Definition
Capable of being shaped or formed, especially by pressure or hammering.
Term
Metal
Definition
One of a large group of chemical elements that heat and electricity can easily move through. About 80% of the known elements are metals.
Term
Metal
Definition
One of a large group of chemical elements that heat and electricity can easily move through.
Term
Mixtures
Definition
A combination of two or more substances that can be separated by physical means.
Term
Molecule
Definition
A particle made up of a group of atoms that are chemically bonded. A molecule of water contains two hydrogen atoms and one oxygen atom.
Term
Nonmetal
Definition
One of a group of chemical elements that do not conduct heat or electricity well.
Term
Periodic Table
Definition
A table that arranges all the chemical elements in rows called periods and columns called groups.
Term
Product
Definition
The compound as a result of a chemical reaction.
Term
Reactant
Definition
A chemical element or a chemical compound that takes part in a chemical reaction.
Term
Reactivity
Definition
Responsiveness to a chemical reaction.
Term
Salt
Definition
A compound that can be formed when an acid reacts with a base. Table salt is a compound of sodium and chlorine.
Term
Scanning Electrom Microscope
Definition
An electrom microscope that makes a three-dimensional image by shooting a stream of electroms at an object and moving the stream across it.
Term
Solid
Definition
One of three basic forms of matter. Solids are made up of molecules that can vibrate back and forth but can't move to change places with other molecules.
Term
Solubility
Definition
The ability to be dissolved.
Term
Sublimation
Definition
The process of changing from a solid to a gas, or from a gas to a solid, without turning into a liquid first.
Term

Symbol

 

[image]

Definition
A written sign that stands for something else.
Term
Thermal Conductivity
Definition
Ability to conduct or transwer heat.
Term
You should know that each element is made of ___ kind of atom and that the elements are organized in the periodic table by their ______ properties.
Definition
You should know that each element is made of one kind of atom and that the elements are organized in the periodic table by their chemical properties.
Supporting users have an ad free experience!