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Chemistry - 7.1

Across
Change in the physical characteristics of a substance without creating a new substance.
The ability to do work to accomplish some change.
The number identifies how many protons are in a single atom of an element on the periodic table.
A simple unit of a carbohydrate.
The smallest complete unit of an element.
Name given to an electron in the outermost orbit that is easily moved from its orbit.
Type of chemistry that deals with matter that was never living.
A bond uniting two amino acid groups.
Thousands of amino acids connected lengthwise.
Anything that occupies space.
The process of a solid or gas changing states without becoming a liquid.
A process in which a substance gains an electron and oxygen is released.
Components that fill the intercellular spaces in the skin.
Down
When positive and negative ions join.
A change in a substance that creates a new substance with different material characteristics from those of the original substance.
Matter with definite weight, but indefinite volume and shape.
Materials that dissolve and break down large molecules into smaller ones.
The branch of science that deals with the chemicals related to life processes and their reactions within the body.
The type of chemistry that deals with all matter that is now living or was alive at one time.
The basic units of matter that cannot be broken down into simpler substances.
Positive electrical charge and identify the atom.
Created by chemically uniting two different elements.
Many saccharides linked together.
A negative electrical charged part of an atom.
Molecules in the body that serve as building blocks that connect with each other to form larger, more complex compounds.
Basic materials that the body uses to construct and renew itself.
The neutrally charged part of an atom.
Compounds consisting of carbon, oxygen, hydrogen and nitrogen.
The center of the atom.
The most abundant element in the earth’s crust.
Matter with definite weight, volume and shape.