Science Vocabulary Bing Density/Ch. 2/Ch. 3 Matter

Density, hardness, texture, state of matter, boiling point and color are examples of… =Physical Properties (of matter)

Anything that has mass and takes up space… =matter

An _________ is a pure substance that cannot be broken down into any other substances by chemical or physical means. Examples Oxygen, Nitrogen, Hydrogen, Gold =Element

A compound can be represented by a ____________ ___________, which shows the elements in the compound and how many atoms are present. =chemical formula

solid, liquid, gas and plasma are examples of =states of matter

A __________ __________ is a characteristic of a pure substance that describes its ability to change into different substances. =Chemical properties

Atoms that are held together by chemical bonds form larger particles called … =molecules

If a piece of metal has a mass of 50 grams and a volume of 2 cubic centimeters, what is its density? =25 grams/cubic centimeter

Salt (NaCl) Water (H20) Iron (Fe) Gold (Au) These are all examples of ____ ________ because they can only be broken down by chemical means. =pure substance

An _______ is the basic particle from which all elements are made. =atom

What kind of energy is stored in the foods you eat, and in the cells of your body? =Chemical Energy

When energy is given off. a wood fire releasing energy in the form of light and heat. =exothermic energy

A change in which energy is taken in The reason you pack food and drinks in an ice-filled picnic cooler to keep them cold. or Ice melting =endothermic change

A __________ is made of two or more substances - elements, compounds, or both- that are together in the same place but are not chemically combined. =mixture

The study of properties of matter and how matter changes. =Chemistry

The amount of space an object takes up is its… Length X Width X Height = =Volume

This form of energy travels through space in the form of waves. =one form Is visible light =electromagnetic energy

What is the force that holds two atoms together in a chemical formula (compound)? =chemical bond

A _______ _______ is any change that alters the form or appearance of matter but does not make any substance in the matter into a different substance. Example water changing from a liquid to gas =Physical Change

How do you calculate the volume of an irregularly shaped object? =Water Displacement

The amount of particles packed into a given amount of space The formula is Mass Volume =Density

The substances in a _________ __________ you can not see the different parts. =homogeneous mixture

The fact that matter is never created or destroyed in any chemical or physical change is called the… =law of conservation of matter

A _________ is a pure substance made of two or more elements chemically combined in a set ratio. =compound

_______ _______ is the total energy of all of the particles in an object. =Thermal Energy

A ________ has a definite volume but NO shape of its own. Particles flow, and move past one another. They do not have a definite pattern. =liquid

_______ is the ability to do work or cause a change. = Energy

A _________ _______ is a change in matter that produces one or more new substances… Example…mixing sulfuric acid and sugar and a new substance charcoal is formed. =Chemical Change