Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
26 Cards in this Set
- Front
- Back
|
Atoms
|
The basic building blocks of matter
|
|
|
Matter
|
Anything that has mass and takes up space
|
|
|
Model
|
An explanation or representation of something that cannot be seen
|
|
|
Element
|
A collection of atoms
|
|
|
Molecules
|
Chemicals that result from atoms linking together
|
|
|
Physical change
|
A change that affects the appearance but not the chemical makeup of a substance
|
|
|
Chemical change
|
A change that alters the makeup of the elements or molecules of a substance
|
|
|
Phase
|
One of three forms - solid, liquid, or gas - which every substance is capable of attaining
|
|
|
Diffusion
|
The random motion of molecules from an area of high concentration to an area of low concentration
|
|
|
Concentration
|
A measurement of how much solute exists within a certain volume of solvent
|
|
|
Semipermeable membrane
|
A membrane that allows some molecules to pass through but does not allow other molecules to pass through
|
|
|
Osmosis
|
The tendency of a solvent to travel across a semipermeable membrane into areas of higher solute concentration
|
|
|
Catalyst
|
A substance that alters the speed of a chemical reaction but is not used up in the process
|
|
|
Organic molecule
|
A molecule that contains only carbon and any of the following: hydrogen, oxygen, nitrogen, sulfur, and/or phosphorous
|
|
|
Biosynthesis
|
The process by which living organisms produce larger molecules from smaller ones
|
|
|
Isomers
|
Two different molecules that have the same chemical formula
|
|
|
Monosaccharides
|
Simple carbohydrates that contain 3 to 10 carbon atoms
|
|
|
Disaccharides
|
Carbohydrates that are made up of two monosaccharides
|
|
|
Polysaccharides
|
Carbohydrates that are made up of more than two monosaccharides
|
|
|
Dehydration reaction
|
A chemical reaction in which molecules combine by removing water
|
|
|
Hydrolysis
|
Breaking down complex molecules by the chemical addition of water
|
|
|
Hydrophobic
|
Lacking any affinity to water
|
|
|
Saturated fat
|
A lipid made from fatty acids that have no double bonds between carbon atoms
|
|
|
Unsaturated fat
|
A lipid made from fatty acids that have at least one double bond between carbon atoms
|
|
|
Peptide bond
|
A bond that links amino acids together in a protein
|
|
|
Hydrogen bond
|
A strong attraction between hydrogen atoms and certain other atoms in specific molecules
|
