Praxis 5005 Elementary Education (Science) (2023/2024) Rated A+

Praxis 5005 Elementary Education (Science) (2023/2024) Rated A+ Insulin A hormone secreted by the pancreas that regulates blood glucose levels Testosterone Steroid hormone used to make men more manly Estrogen Female sex hormone Progesterone secreted by the ovaries; prepares the uterus for pregnancy Solution Homogeneous mixture of two or more substances Volume The amount of space an object takes up Mass The amount of matter in an object Weight The force of gravity on an object Density Mass / Volume Matter Anything that has mass and takes up space Porosity Related to the amount of open space (holes) in rock and is a measure of the rock's ability to hold water Scientists believe that the solar system formed from which of the following? A cloud of gas and dust was squeezed together by gravitational waves that resulted from the explosion of a nearby star Temperature A measure of the average kinetic energy of the particles in a sample of matter Physical Change Change in the matter that does not alter the chemical composition of a substance Ex) Cutting, Heating, or changing shape Solute Substance being dissolved Ex) Salt Solvent Substance being dissolved in Ex) Water Heat Movement of energy Acceleration How quickly an object changes velocity Velocity Rate at which an object changes position Inertia Objects ability to resist change in motion Compound Combining two or more atoms of different elements Solubility Amount of a solute that will dissolve in a solvent Molecule Two or more atoms join together Neutralization Occurs when an acid and a base react to produce salt and water Decomposition Single substance that is broken down into two or more substances Synthesis Two substances combine to form one substance Combustion Produces heat, CO2 and H2O usually by burning a fuel Oxidation Chemical change in which a substance loses electrons, such as when iron rusts when exposed to oxygen, forming iron oxide Chemical Change Bonds between atoms are made or broken resulting in new substances Deposition Gas to Solid Sublimation