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science 4833

Everything around you is made of _____ and _______. energy ; matter
Matter is anything that has _______ and takes up ________. mass; space
Energy can hold _______ together or break it apart. matter
Matter is made of ______. atoms
A nucleus contains _________ and ___________. protons; neutrons
outside the nucleus are _______ which are involved in ___________. electrons;chemical reactions
Elements are made up of only ________ kind of _______. one; atom
elements cannot be __________ into a simpler form by ordinary chemical reactions. broken down
elements are arranged in a chart called the __________ of elements. periodic table
Compounds are made of two or more ______ in exact proportions. elements
Compouds have different _________ from the elements they are made of. properties
The smallest part of a moecular compound is a __________. molecule
__________ have a group of atoms held together by the energy of chemical bonds. Molecules
Molecules form when atoms share ______. electrons
Ions are ___________ atoms, positive or negative. electrically charged
Ions of __________ charges attract ofne another to form electically _____________ compounds. opposite; neutral
A mixture is a combination of substances in which individual substances _______________ keep their own properties
A solution is a mixture in which two or more substances are mixed _________. evenly
A suspension forms when a liquid or gas has another substance evenly __________ throughout it. spread
Organic compounds contain _________ and hydrogen and are usually associated with living things or things that once were alive. carbon
______________ supply energy for cell processes Carbohydrates
__________ store and release large amounts of energy. Lipids
_________ are the building blocks of many structures proteins
___________ are smaller molecules that make up proteins Amino acids
_________ are proteins that regulate nearly all chemical reactions in cells Enzymes
__________ store important caded information in cells Nucleic acids
inorganic compounds usually are made from elements other than_____________. Carbon
Living things are composed of more than ___ water and depend on it to survive. 50%
All chemical reactions in living things take place in ___________. water solutions
Most living things use water to _________ materials through their bodies. Transport.
Created by: gracie4833