Matter

________________________ is anything that has mass and takes up space.

MATTER

_____________________________________ are characteristics of a substance (like color, size, solubility, or density) that can be observed or measured without changing the substance into something else.

PHYSICAL PROPERTIES

_____________________ is the amount of matter in an object.

MASS

_____________________ is a measure of the pull of gravity on an object.

WEIGHT

Weight is measured on a _________________________ scale.

SPRING

Mass is measured on a __________________________.

BALANCE

_________________________ is the amount of space that an object takes up.

VOLUME

You can measure the volume of a solid object by placing the object in a graduated cylinder with water and measuring how much water is ______________________________.

DISPLACED

____________________ is the concentration of matter in an object.

DENSITY

You can divide the mass of an object by its volume to find the object’s __________________________.

DENSITY

A pure substance always has the _____________________ density when measured under the same conditions.

SAME

True or False: The density of an object is a physical property.

TRUE

True or False: Changing the shape and amount of an object will also change its density.

FALSE

A ________________________ is a combination of two or more different kinds of matter, each of which keeps its own physical properties.

MIXTURE

Sometimes the ability to be dissolved, or ___________________, can be used to identify a substance.

SOLUBILITY

True or False: A solution is a type of mixture.

TRUE

A person's weight is _______________ on a high mountain than it is at sea level.

DIFFERENT

A _______________________ has a definite shape and a definite volume. The particles are tightly packed together.

SOLID

A ________________________ has a definite volume but no definite shape The particles are not packed together and slide over one another.

LIQUID

A ______________________ does not have a definite shape or volume. The particles are far apart.

GAS

_________________________ changes a substance from a liquid to a gas.

EVAPORATION

____________________ changes a substance from a gas to a liquid.

CONDENSATION

_________________ changes a liquid to a solid.

FREEZING

Changes in which no new substances are formed are

_______________________ changes.

PHYSICAL

Changes in which one or more new substances are formed are called _____________________ changes or reactions.

CHEMICAL

Production of heat, light, or gas, or a change in color are signals of a ______________ change or reaction.

CHEMICAL

The ability of a substance to react chemically or go through a chemical change is called _________________________.

REACTIVITY

The ability of a substance to burn is called ____________________.

COMBUSTIBILITY

True or false: Rusting iron is a physical change.

FALSE

________________ tests can be used to identify substances based on the color of the flame they produce.

FLAME

The strength of acids and bases can be measured using dyes called ________________________.

INDICATORS

An ______________________ is a combination of a metal and other substances, such as oxygen, sulfur, carbon, or silicon.

ORE