Matter

Atom

The smallest particle of an element. Atom. An atom is the basic unit of matter that makes up everything around us.

Buoyancy

The upward force fluids exert, it keeps objects afloat. Buoyancy is the force that allows objects to float in liquids or gases.

Change of state

A physical change of matter between solid, liquid, and gas. Change of state. It is when matter changes from one form to another, like ice melting into water.

Chemical change

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

Chemical reaction

The process where substances change into different substances through the breaking of chemical bonds. Chemical reaction. A chemical reaction is when substances mix and transform into new substances.

Compound

The substance made when atoms from two or more elements combine chemically. Compound. A compound is a substance formed when different types of atoms bond together, like water being made of hydrogen and oxygen.

Density

An objects mass per unit volume. Density. Density is how much stuff is packed into a certain amount of space.

Element

A substance made of one type of atom that cannot be broken down chemically. An element is a basic building block of matter with unique properties.

Gas

A state of matter that has no fixed shape or volume. Gas. Gas is a state of matter where molecules move freely and spread out to fill any container.

Liquid

A state of matter that has definite volume but no definite shape. Liquid. Liquids flow and take the shape of their container while maintaining a fixed volume.

Mass

The amount of matter in an object. Mass. Mass is how much "stuff" or matter is inside an object, determining how heavy it feels.

Matter

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

Metric system

A measurement system based on units of 10, like meter or liter, is the metric system. The metric system is an international system of measurement used in Science for its simplicity and consistency.

Mixture

A combination of substances that keep their individual properties. Mixture. In science, a mixture is when different substances are combined, but each maintains its own properties.

Physical change

A change in size, shape, or state but not in identity. Physical change. In science, a physical change is when the form of matter is altered but its substance remains the same.

Solid

The state of matter with definite shape and volume solid. In simple terms, a solid is a material where the particles are packed tightly together, keeping a fixed shape and volume.

Solubility

A measure of how much solute will dissolve in a solvent. Solubility. Solubility is how easily a substance can dissolve in a liquid to form a solution.

Solution

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

Temperature

How hot or cold something is, it is determined by the kinetic energy of its particles. Temperature. Temperature is a measure of how fast the particles in a substance are moving.

Volume

The amount of space an object takes up. Volume. Volume is the measure of how much space an object occupies.

Weight

Measure of the force of gravity on an object. Weight. Weight is how much gravity pulls on an object.