Praxis 5442 exam - Study guides, Class notes & Summaries

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...

praxis 5442 Middle School Exam Practice Questions with Correct Solutions

praxis 5442 Middle School Science Exam Questions with Correct Solution

praxis 5442 Middle School Science Exam Revision Questions with Correct Solutions

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.

substance - ANSWER matter that has a uniform and definite composition mass - ANSWER A measure of the amount of matter in an object physical property - ANSWER of a substance is density density - ANSWER mass/volume physical properties of a substance - ANSWER color and odor, melting and boiling points, malleability and hardness