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Matter by Savannah Schnepf
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Element:substance that cannot be broken down into any other substance by chemical or physical means
Atom:the smallest unit of an element ALL matter is made up of atoms they are the basic building blocks of matter
Proton:a very small particle inside an atom's nucleus or central core it has a positive electrical charge
Neutron:a small particle inside an atom's nucleus that's not electrically charged
Electron:found outside the nucleus it's a small negatively charged particle that moves around the outer sphere of an atom
Molecule:a group of 2 or more atoms held together by a chemical bond
Compounds:substances made of 2 or more elements that combine chemically in a set ratio
Reactant:substances that undergo a chemical change
Products: the new substance that forms from a chemical change
Chemical formula: represent compounds
Chemical bond: an electrical force of attraction between 2 atoms it holds one atom to another these bonds form when an atom shares electron with another atom or when electrons are transferred from one atom to another
Physical changes: any change that alters the form or appearance of a substance but doesn't change it to another substance
Chemical change: change in matter that produces one or more new substances also called a chemical reaction
Coefficient: a number placed in front of a chemical formula in an equation it tells you the amount of a reactant or product in the reaction
Chemical equation: a way to show a chemical reaction using symbols instead of words it tells you the reactants or substances you start with in a reaction and the products or new substances that are formed at the end
Matter by Savannah Schnepf
Across:4. | a small particle inside an atom's nucleus that's not electrically charged | 5. | a very small particle inside an atom's nucleus or central core it has a positive electrical charge | 8. | substances made of 2 or more elements that combine chemically in a set ratio | 9. | substances that undergo a chemical change |
| 10. | a way to show a chemical reaction using symbols instead of words it tells you the reactants or substances you start with in a reaction and the products or new substances that are formed at the end | 12. | found outside the nucleus it's a small negatively charged particle that moves around the outer sphere of an atom | 13. | the smallest unit of an element ALL matter is made up of atoms they are the basic building blocks of matter |
| | Down:1. | substance that cannot be broken down into any other substance by chemical or physical means | 2. | an electrical force of attraction between 2 atoms it holds one atom to another these bonds form when an atom shares electron with another atom or when electrons are transferred from one atom to another | 3. | a group of 2 or more atoms held together by a chemical bond | 5. | any change that alters the form or appearance of a substance but doesn't change it to another substance |
| 6. | the new substance that forms from a chemical change | 7. | change in matter that produces one or more new substances also called a chemical reaction | 11. | a number placed in front of a chemical formula in an equation it tells you the amount of a reactant or product in the reaction |
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© 2015
PuzzleFast.com, Noncommercial Use Only
Matter by Savannah Schnepf
Across:4. | a small particle inside an atom's nucleus that's not electrically charged | 5. | a very small particle inside an atom's nucleus or central core it has a positive electrical charge | 8. | substances made of 2 or more elements that combine chemically in a set ratio | 9. | substances that undergo a chemical change |
| 10. | a way to show a chemical reaction using symbols instead of words it tells you the reactants or substances you start with in a reaction and the products or new substances that are formed at the end | 12. | found outside the nucleus it's a small negatively charged particle that moves around the outer sphere of an atom | 13. | the smallest unit of an element ALL matter is made up of atoms they are the basic building blocks of matter |
| | Down:1. | substance that cannot be broken down into any other substance by chemical or physical means | 2. | an electrical force of attraction between 2 atoms it holds one atom to another these bonds form when an atom shares electron with another atom or when electrons are transferred from one atom to another | 3. | a group of 2 or more atoms held together by a chemical bond | 5. | any change that alters the form or appearance of a substance but doesn't change it to another substance |
| 6. | the new substance that forms from a chemical change | 7. | change in matter that produces one or more new substances also called a chemical reaction | 11. | a number placed in front of a chemical formula in an equation it tells you the amount of a reactant or product in the reaction |
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© 2015
PuzzleFast.com, Noncommercial Use Only