Building Blocks Crossword

Any object or thing that has measurable volume and mass.
The amount of 3D space an object occupies
The amount of matter in an object
The amount of matter (mass) per unit of volume. Equals mass divided by volume
The measure of the gravitational force on an object’s mass (usually by the Earth or another very massive object). Weight = mass x gravity
A property of matter that can be observed or measured without changing the substance.
Affects one or more physical properties of a substance. Physical changes can often be reversed.
A property of matter that describes a substance based on its ability to change into a new substance with different properties.
One or more substances change into entirely new substances with different properties. Chemical changes can often not be reversed.
Physical forms a substance can exist in. The four main states of matter are: solid, liquid, gas and plasma. (physical property of matter)
Pure substance that can’t be separated into simpler substances by physical or chemical changes.
The smallest particle into which an element can be divided and still be the same substance.
The tiny, dense, positively charged center of an atom. Contains most of the atom’s mass and protons and neutrons are located there.
Positively charged particles found in the nucleus of an atom. Protons have a charge of +1.
Negatively charged particles found in the electron clouds of atoms. Electrons have a charge of -1.
Particles found in the nucleus of an atom that have no charge but have mass.
The Si or metric unit used to express the masses of particles in atoms. Each proton and neutron has a mass of 1 amu.
The number of protons in the nucleus of an atom is equal to the atomic number. Elements on the periodic table are arranged in order of atomic number.
The sum of the protons and neutrons in an atom. (Protons + Neutrons = Mass Number)
A table of the elements that organizes them according to a regular, repeating pattern.
Horizontal rows of elements (left to right) on the periodic table. The properties of elements in a row follow a repeating pattern
Each column of elements (top to bottom) on the periodic table. Elements in the same group have similar physical and chemical properties.