Matter

Science

A change that produces a new substance

Chemical change

A change that produces a new substance. Chemical change. A chemical change is when substances combine or break apart to form new substances with different properties.

A property that is not visible until a substance undergoes a chemical reaction, like solubility

Chemical property

A property that is not visible until a substance undergoes a chemical reaction, like solubility. Chemical property. A chemical property is a characteristic that describes a substance's ability to change into a different substance.

The substance made when atoms from two or more elements combine chemically

Compound

The substance made when atoms from two or more elements combine chemically. Compound. A compound is a substance formed when two or more different elements join together chemically.

An object’s mass per unit volume

Density

An object's mass per unit volume. Density. Density tells us how much stuff an object has packed into a certain space.

A substance made of one type of atom that cannot be broken down chemically

Element

A substance made of one type of atom that cannot be broken down chemically. Element. An element is a pure substance consisting of only one kind of atom.

A mixture in which substances are not evenly mixed

Heterogeneous mixture

A mixture in which substances are not evenly mixed. Heterogeneous mixture. In Science, a heterogeneous mixture is when you can see the different parts, like salad with vegetables.

A mixture in which substances are evenly mixed (also called a solution)

Homogeneous mixture

A mixture in which substances are evenly mixed also called a solution. homogeneous mixture. In science, a homogeneous mixture is when different substances are mixed so thoroughly that they look and feel like a single substance.

The amount of matter in an object

Mass

The amount of matter in an object. Mass. Mass is a measure of how much stuff is inside an object.

Anything that has volume and mass

Matter

Anything that has volume and mass. Matter. Matter is anything that takes up space and has weight.

A combination of substances that keep their individual properties

Mixture

A combination of substances that keep their individual properties. Mixture. In Science, a mixture is when two or more substances are combined but each one retains its own properties.

A group of atoms held together by bonds

Molecule

A group of atoms held together by bonds. Molecule. A molecule is a combination of two or more atoms bonded together, forming the smallest unit of a chemical compound.

A change in size, shape, or state but not in identity

Physical change

A change in size, shape, or state but not in identity. Physical change. A physical change alters the form of a substance but not its chemical composition.

A property of a substance we can observe without changing its identity, like color or hardness

Physical property

A property of a substance we can observe without changing its identity, like color or hardness. Physical property. It's a characteristic of a substance that we can see or measure without changing what the substance is.

A mixture of evenly distributed substances

Solution

A mixture of evenly distributed substances. Solution. A solution is a homogeneous mixture where one substance is dissolved in another.

An element or compound with the same composition and properties throughout

Substance

An element or compound with the same composition and properties throughout. Substance. In Science, a substance is a form of matter with consistent chemical and physical properties.