Praxis 5442 exam - Study guides, Class notes & Summaries

potential energy - ANSWER Energy that is stored and held in readiness 3rd law of thermodynamics - ANSWER the law that states that in order for motion to stop we have to reach absolute zero critical point - ANSWER a point on a phase diagram at which both the liquid and gas phases of a substance have the same density, and are therefore indistinguishable. chemical energy - ANSWER A form of potential energy that is stored in chemical bonds & intermolecular forces between atoms.

Middle School Science Praxis 5442 Exam Study Guide. Matter - answerAnything that has mass and takes up space. John Dalton - answerProposed elements were made of atoms; this theory is the Atomic Theory of Matter. Sir Joseph John (J.J.) Thompson - answerDiscovered electrons; pictured electrons embedded with protons. Ernest Rutherford - answerAtoms have positive nucleus; electrons orbit in empty space. Sir James Chadwick - answerExistence of neutrons in the nucleus. Physical Property - ans...

ell - ANSWER Basic unit of life Organelle - ANSWER Parts of a cell ("organ" of the cell system) Nucleus - ANSWER a membrane-bound organelle that contains the cell's chromosomes. Pores in the nuclear membrane allow for the passage of molecules in and out of the nucleus.

Middle School Science Praxis 5442 Exam Study Guide. Substance - answermatter that has a uniform and definite composition mass - answerA measure of the amount of matter in an object physical property - answerof a substance is density density - answermass/volume physical properties of a substance - answercolor and odor, melting and boiling points, malleability and hardness chemical properties - answerCharacteristic that cannot be observed without altering the substance phases of matter -...

Physical Science Praxis 5442 Exam Study Guide. Atomic Structure - answerAn atom is a complex arrangement of negatively charged electrons arranged in defined shells about a positively charged nucleus. This nucleus contains most of the atom's mass and is composed of protons and neutrons (except for common hydrogen which has only one proton). All atoms are roughly the same size Protons - answerPositively charged particles found within atomic nuclei Neutrons - answerA subatomic particle of a...

Life Science Praxis 5442 Exam Study Guide. Cell - answerBasic unit of life Organelle - answerParts of a cell ("organ" of the cell system) Nucleus - answera membrane-bound organelle that contains the cell's chromosomes. Pores in the nuclear membrane allow for the passage of molecules in and out of the nucleus. Mitochondria - answera double-membrane-bound organelle found in most eukaryotic organisms. Mitochondria generate most of the cell's supply of adenosine triphosphate, used as a so...

Praxis 5442 - Physical Science Exam Study Guide. Potential energy - answerEnergy that is stored and held in readiness 3rd law of thermodynamics - answerthe law that states that in order for motion to stop we have to reach absolute zero critical point - answera point on a phase diagram at which both the liquid and gas phases of a substance have the same density, and are therefore indistinguishable. chemical energy - answerA form of potential energy that is stored in chemical bonds & inter...

Matter - ANSWER Anything that has mass and takes up space. John Dalton - ANSWER Proposed elements were made of atoms; this theory is the Atomic Theory of Matter. Sir Joseph John (J.J.) Thompson - ANSWER Discovered electrons; pictured electrons embedded with protons.