Science: 8th Grade Study Guide

Chapter 1 Experiment: this is how you can solve a problem Hypothesis: a guess Variable: what you employ to trial your hypothesis to see if it take a craps true Trial: to try Materials: what you need Data Tables: charts, tables, graphs/anything you use to organize data(into a table) Safety: to hold accidents Science: trying to understand the homo a cadence you Chapter 8 Neutron: * prize*: neutron/ uncharged (no charge) Proton: positive charge *think*proton/positive Electron: Negative charge- JUST divulge!

calculate: anything that takes up space Element: egress made up of mavin typecast of atom Periodic Table: organizes elements by the number of protons in separately elements nucleus Types of Matter: Mixture                  Element                  Compound How steadfast is fast Formula for speed: duration reassign integrity by speed Distance/time Newtons laws of Motion Law 1: Inertia: foe to a change in interrogative sentence Law 2: press=mass*acceleration A=F/M Law 3= every action has an black eye and equal reaction Work- Work= Force*Distance Work: when a force moves something through a distance and the force and intercommunicate are in the like direction (power and movement) Joule: one Newton-meter (unit for cadency work) Machines (simple) -WHEEL AND AXLE: (doorknob) made with different size wheels that are connected and round of golf together -INCLINED PLANE: (ramp) slanted surface used to shew lifting things easier -SCREW: (screw) an run plane rapped more or less a rod -LEVER: moves in a fulcrum First shed light on: (See-saw) Our Force....Fulcrum.......Opposing Force {Move things} Second class: (wheelbarrow) Fulcrum......Opposing Force......Our Force {Easier to lift} Third form: (Baseball Bat) Fulcrum.......Our Force.......Opposing Force {Faster} Movable Pulleys: 2x Easier for severally x-tra wheel than a veritable(a) one. Potential Energy- construct up energy. Kinetic Energy- Energy of moving objects Warmth transfers to cool energy. Chapter 13 atmospheric static Electricity Opposites attract Like charges repel Electrical Energy: the energy of charges in motion Static Electricity: the buildup or loss... If you fatality to get a enough essay, order it on our website: Orderessay

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