Puzzles and worksheets similar to 8th Grade Science Crossword

Atoms, Elements, and Compounds Crossword

Type
Crossword
Description

are the building blocks of matter Atoms
Neutrons and Protons are located here Nucleus
Positively charged particles Protons
Particles that have no charge neutrons
Negitively charged particles Electrons
pure substances that cannot be broken down into other substances by physical or chemical means Element
Atoms of the same element that have different numbers of neutrons Isotopes
A pure substance formed when two or more different elements combine Compound
chemical bond that forms when electrons are shared Covalent bond
a compound in which the atoms are held together by covalent bonds Molecule
an electrical attraction between two oppositely charged atoms or groups of atoms ionic bonds
process by which atoms or groups of atoms in substances are reorganized into different substances chemical reaction
substance that lowers the activation energy needed to start a chemical reaction catalyst
biological catalyst that speed up the rate of chemical reactions in biological processes enzymes
specific location where a substrate binds on an enzyme active site
molecules that have an unequal distribution of charges polar molecules
the electrostatic attraction hydrogen bond
the substance that is dissolved in the solvent solute
substance in whih another substance is dissolved solvent
anothe name for homogeneous mixture solution

Intro to Chemistry Crossword

Type
Crossword
Description

Creator of the Periodic Table Dmitrimendeleev
When two or more compounds are joined together. mixture
Diagram of Elements Periodictable
Rows on the Periodic Table period
Number of Protons in an Element Atomicnumber
Chemistry that relates to non carbon compounds. inorganicchemistry
A substance with just one type of atom. element
The place where Protons and Neutrons are housed nucleus
Group 18. These elements do not mix well with others. nobelgases
How quick it is to join up with other elements. reactive
A type of mixture that you cannot pick apart. A solution. Homogeneous
A type of mixture that you can pick apart. Heterogeneous
A negatively charged particle. electron
Element with 2 protons. helium
positively charged particle. proton.
A type of chemistry that involves carbon based life forms. Organicchemistry
A particle that has no charge. Neutron
When two elements bond together. Compound
Electrons are located around the nucleus in an electron what? cloud
The point at which a solid turns to a liquid. meltingpoint
Point at which a liquid is turned into a gas. boilingpoint
Same number of protons different number of neutrons. isotope
Al things that have mass and volume. matter
The lightest element known hydrogen

Atomic Structure Crossword

Type
Crossword
Description

basic unit of life Atom
the central and most important part of an object, movement, or group, forming the basis for its activity and growth nucleus
a subatomic particle of about the same mass as a proton but without an electric charge, present in all atomic nuclei except those of ordinary hydrogen Neutron
a stable subatomic particle occurring in all atomic nuclei, with a positive electric charge equal in magnitude to that of an electron, but of opposite sign. proton
a stable subatomic particle with a charge of negative electricity, found in all atoms and acting as the primary carrier of electricity in solids electron
An atomic orbital is a mathematical function that describes the wave-like behavior of either one electron or a pair of electrons in an atom electron cloud
the fixed amount of energy that a system described by quantum mechanics, such as a molecule, atom, electron, or nucleus, can have energy level
an electron in an outer shell of an atom that can be lost to or shared with another atom to form a molecule Valence Electrons
the mass of an atom of a chemical element expressed in atomic mass units. It is approximately equivalent to the number of protons and neutrons in the atom (the mass number) or to the average number allowing for the relative abundances of different isotopes. Atomic Mass
the number of protons in the nucleus of an atom, which determines the chemical properties of an element and its place in the periodic table. Atomic Number
a part or aspect of something abstract, especially one that is essential or characteristic: element
usually refers to the one- or two-letter abbreviation for a chemical element, though the term can be applied to the alchemical symbols also element symbol

SCIENCE FINAL CROSSWORD (Created by,Alaina Fritzinger, period 6, 2016)

Type
Crossword
Description

An electron that is associated with an atom, and that can participate in the formation of a chemical bond; in a single covalent bond. VALENCE ELECTRONS
Made when two or more nonmetal atoms bond by sharing valence electrons. COVALENT COMPOUNDS
A chemical bond that involves the sharing of electron pairs between atoms. COVALENT BONDING
A chemical compound comprising ions held together by electrostatic forces termed ionic bonding. IONIC COMPOUNDS
The complete transfer of valence electron(s) between atoms. IONIC BONDING
Where electrons are when they go around the nucleus of an atom. ELECTRON CLOUD
An orbit followed by electrons around an atom's nucleus. ELECTRON SHELL
An atom or molecule with a net electric charge due to the loss or gain of one or more electrons. IONS
Each of two or more forms of the same element that contain equal numbers of protons but different numbers of neutrons in their nuclei. ISOTOPES
The positively charged central core of an atom, consisting of protons and neutrons and containing nearly all its mass. NUCLEUS
A stable subatomic particle with a charge of negative electricity, found in all atoms and acting as the primary carrier of electricity in solids. ELECTRONS
A subatomic particle of about the same mass as a proton but without an electric charge, present in all atomic nuclei except those of ordinary hydrogen. NEUTRONS
A stable subatomic particle occurring in all atomic nuclei, with a positive electric charge equal in magnitude to that of an electron. PROTONS
Founded the modern version of the periodic table. MOSELEY
Founded the first periodic table. MENDELEEV
An element whose properties are intermediate between those of metals and solid nonmetals. METALLOIDS
An element or substance that is not a metal. NONMETALS
A solid material that is typically hard, shiny, malleable, fusible, and ductile, with good electrical and thermal conductivity. METALS
The number of protons in the nucleus of an atom, which determines the chemical properties of an element and its place in the periodic table. ATOMIC NUMBER
It is approximately equivalent to the number of protons and neutrons in the atom. ATOMIC MASS
Each of more than one hundred substances that cannot be chemically interconverted or broken down into simpler substances and are primary constituents of matter. ELEMENT
An ionized gas consisting of positive ions and free electrons in proportions resulting in more or less no overall electric charge. PLASMA
An airlike fluid substance which expands freely to fill any space available. GAS
Firm and stable in shape. SOLID
Flowing freely but of constant volume. LIQUID
The element with the symbol of Pu. PLUTONIUM
The element with the symbol of U. URANIUM
The element with the symbol of Rn. RADON
The element with the symbol of Pb. LEAD
The element with the symbol of Au. GOLD
The element with the symbol of Pt. PLATINUM
The element with the symbol of Ag. SILVER
The element with the symbol of Cu. COPPER
The element with the symbol of Fe. IRON
The element with the symbol of Ti. TITANIUM
The element with the symbol of Ca. CALCIUM

Atomic Theory History and Vocab. Review Crossword

Type
Crossword
Description

Who created the Atomic Theory in 1803? Dalton
Who created a model of atoms that includes electrons orbiting a small nucleus in 1913? Bohr
Who used to cathode ray tube to discover the presence of electrons in 1898? Thomson
Who performed the gold foil experiment in 1909, which lead to the conclusion that atoms are mostly empty space? Rutherford
A unit of matter, the smallest unit of an element, having all the characteristics of that element. Atom
The positively charged central region of an atom, composed of protons and neutrons and containing almost all of the mass of the atom. Nucleus
A subatomic particle with a positive electrical charge, forming part of the nucleus of an atom. Proton
A subatomic particle with a neutral electrical charge, forming part of the nucleus of an atom. Neutron
A subatomic particle with a negative electrical charge, found outside the nucleus of an atom. Electron
The number of protons in the nucleus of an atom of an element. Atomic Number
An abundance-weighted average of the masses of all the isotopes of an element. average atomic mass
The total number of protons and neutrons in the nucleus of an atom. mass number
Any of the several different forms of an element each having different mass numbers. Isotope

Atoms Crossword

Type
Crossword
Description

dense, positively charged mass in the center of an atom. Nucleus
Positively charged subatomic particle found in the nucleus Proton
Neutral subatomic particle found in the nucleus. Neutron
number of protons in the nucleus of an atom. Atomic number
sum of the protons and neutrons in the nucleus of an atom. Mass number
atoms of the same element having different numbers of neutrons. Isotope
possible energies that electrons in an atom can have. Energy levels
Term for an atom whose electrons have the lowest possible energies Ground state
Region of space where an electron is likely to be found. Orbital
Visual model of the most likely locations for electrons in an atom. Electron cloud
atoms that have the ability to spontaneously and continuously decay. Radioactive
Arrangement of atoms by increasing atomic number. Periodic table
Groups of atoms. Molecule
Substances that cannot be broken down unto any other substances. Element
Pure substances that are produced when elements combine. Compound
An atom or molecule which has lost or gained one or more electrons, giving it a positive or negative electrical charge. Ions
The science of the composition, structure, properties, and reactions of matter, especially of atomic and molecular systems. Chemistry
Breaking down or breaking apart. Decay
negatively charged subatomic particle which orbits outside of the nucleus. Electron
The smallest piece of an element that still represents that element. Atom

ATOMS AND THE PERIODIC TABLE Crossword

Type
Crossword
Description

The basic particle from which all elements are made atom
A small particle in the nucleus of the atom with NO electrical charge neutron
A series of elements organized in horizontal rows on the periodic table period
The central core of the atom nucleus
Negatively charged particles of an atom electron
Elements in the same vertical column of the periodic table group
A 1- or 2-letter representation of an element chemical symbol
A positively charged particle that is part of the nucleus of an atom proton
The sum of the protons and neutrons in the nucleus of an atom mass number
The average mass of all the isotopes of an element atomic mass
An atom with the same number of protons and a different number of neutrons from other atoms of the same element isotope
A chart of the elements showing the repeating pattern of their properties periodic table
This represents the number of protons in the nucleus of an atom atomic number

Mixtures and Solutions Crossword

Type
Crossword
Description

The amount of matter in a solid, liquid, or gas. mass
The amount of matter in a given volume. density
Any solid, liquid, gas that has mass and can take up space. matter
When a solid, liquid, or gas changes state. statesofmatter
The amount of space an object can take up. volume
A physical combination of two or more substances that are blended together without forming a new substance. mixture
A mixture of substances that are blended so completely that the mixture looks the same everywhere. solution
The process of separating the parts of a mixture by evaporation or condensation. distillation
A substance that can attract and repel magneticattraction
It is when a particle leaves a liquid and turns into a gas evaporation
A substance that is dissolved by another substance to form a solution. solute
A substance that dissolves one or more other substances to form a solution. solvent
A change of matter in size, shape, or state without change in identity phsicalchange
The process of changing directly from a solid to gas without first becoming a liquid. sublimation
It is when a solid turns into a liquid. meltingpoint
The particular temperature for a substance at which it changes state from a liquid to a gas. boilingpoint
The maximum amount of substance that can be dissolved by another substance Solubility
It is when a liquid turns into a solid when temperature changes. FreezingPoint
The contraction of matter caused by a change in heat ThermalContraction
The expansion of matter caused by a change in heat. ThermalExpansion
A type of mixture in which the particles of one material are scattered through another and block the passage of light without settling out. Colliods
a measure on how gravity pulls on an object Weight
A substance that is formed by the chemical combination of two or more elements and that acts like a single substance. Compounds
A change in matter that occurs when atoms link together in a new way, creating a new substance different from the original substance. ChemicalChange
A solid formed by a chemical. Percipitate
A substance at the end of a chemical reaction of two substances. Products
The upward push of a liquid or gas on an object. Bouyancy
A pure substance that cannot be broken down into any simpler substance through chemical reactions. Element
The smallest unit of an element that retains the properties of that element. Atom
Any group of elements that conducts heat and electricity, has a shiny luster, and is flexible. Metal
A particle in the space outside the nucleus of an atom that carries one unit of negative charge. Eletron
A particle in a nucleus of an atom that has no net electric charge. Neutron
The center of an atom that has the most of its mass. Nucleus
A particle within the nucleus of an atom that carries one unit of positive electric charge. Proton
A particle that contains more than one atom joined together. Molecule
A solution of a metal and and at least one other solid which is often also a metal. Alloy

Basic Chemistry Crossword

Type
Crossword
Description

The study of matter chemistry
Occupies space and has mass Matter
Solid, liquid, gas State of matter
Pure substances consisting of only one kind of atom in each molecule. Element
Pure substances consisting of two or more atoms in each molecule Compound
Chart of elements organized according to their atomic structure Periodic table
The part of the atom containing the protons and neutrons Nucleus
Positive particle of an atom. The number of these determines what kind of element it is Proton
Neutrally charged particle found in the nucleus and has mass Neutron
Negatively charged particle outside the nucleus Electron
Donated electrons form charged particles called ions to stick together Ionic bond
Shared electrons hold atoms together. Covalent bond
A distinct group of atoms bonded together Molecule
The smallest unit of an element Atom
Shows how atoms in a molecule are located and connected Structural formula
Show the number and type of atoms in a molecule Chemical formula
The ability to do work Energy
A protein molecule or organic molecule used as a catalyst Enzyme
Substances that affect the rate of a reaction but are not changed themselves. Also may start or stop a reaction from occurring. Catalyst
The metric unit used to weigh of a bar of gold kilogram
Substances that enable enzymes to work properly. Coenzyme
Small amount of liquid chemicals would be measured using this metric unit. Milliliter

Basic Chemistry Crossword

Type
Crossword
Description

The smallest particle of an element that retains the properties of the element atom
Formed when atoms combine chemically molecule
Uncharged subatomic particles, forming part of an atom neutron
Substances that cannot be broken down into simpler substances by ordinary chemical methods; composed of atoms that have the same atomic number element
A substance composed of two or more elements that are chemically bonded together compound
A number that is characteristic of a chemical element and represents the number of protons in the nucleus atomic number
Atoms of the same element that have the same number of protons, but different numbers of neutrons isotope
An electrically charged atom or group of atoms formed by the loss or gain of one or more electrons; an atom that is either positively or negatively charged ion
Positively charged atom cation
Negatively charged atom anion
A chemical bond that holds together ions with opposite charges ionic
A chemical bond that forms between two atoms when those atoms share electrons covalent
A chemical substance that releases hydrogen ions when dissolved in water acid
A chemical substance that binds with hydrogen ions in water base