Science
way of gaining knowledge about the natural world
What is science?
Fats and oils
What are lipids?
change of one substance to another
What are Chemical reactions?
reactions in living organisms
What is Biochemical reactions?
H20
What is water?
Statement that can not change under certain conditions
Anything that has mass and takes up space
What is matter?
Matter cannot be created or destroyed
What is Conservation of matter?
sum of all reactions within an organism
What is metabolism?
electrical charge difference between areas of a molecule.
What is polarity?
Controlled investigation
What is an Experiment?
all the same type of atom
What is an element?
Energy is released during the reaction (fire)
What is Exothermic?
exothermic reaction which break down large molecules and require energy.
What is catabolic reactions?
keep water in liquid phase
What is Hydrogen bonds?
Representation of part of the real world
What is a Model?
Sugar or scratch used to store energy
What is Carbohydrate?
Energy is absorbed during the reaction (crack ice pack)
What is Endothermic?
endothermic reactions which build up large molecules and require energy
What is anabolic reactions?
mixture of two substances
What is solution?
Broad explanations that are well supported
What is Scientific Theory?
contain carbon and are found in living organisms
What is an organic compound?
Energy is required to start a chemical reactions
What is Activation Energy?
speed up reactions in cells, without them most life would die
What is enzyme?
concentration of hydronium ions (H+)
What is PH?