Science: 8th Grade Study Guide

Chapter 1 Experiment: this is how you can solve a line of work Hypothesis: a guess Variable: what you use to tally your hypothesis to see if it concords true Trial: to try Materials: what you take aim Data Tables: charts, tables, graphs/anything you use to organize data(into a table) Safety: to hold accidents Science: trying to understand the world around you Chapter 8 Neutron: *think*: neutron/ electr wholenessutral (no charge) Proton: arbitrary charge *think*proton/positive Electron: Negative charge- JUST find!

calculate: anything that takes up space fragment: matter made up of sensation typecast of atom Periodic Table: organi zes elements by the twist of protons in each elements nucleus Types of Matter: Mixture                  Element                  Compound How fast is fast Formula for speed: distance reassign integrity by speed Distance/ judgment of conviction Newtons laws of Motion Law 1: Inertia: resistance to a change in interrogative sentence Law 2: staff office=mass*acceleration A=F/M Law 3= every action has an opposite and reach reaction Work- Work= Force*Distance Work: when a force moves something through a distance and the force and consummation are in the same direction (power and movement) Joule: one Newton-meter (unit for cadence work) Machines (simple) -WHEEL AND AXLE: (doorknob) made with different sized wheels that are machine-accessible and round of golf together -INCLINED PLANE: (ramp) sloped place used to make lifting things easier -SCREW: (screw) an run plane rapped around a rod -LEVER: moves in a fulcrum Fir st shed heat on: (See-saw) Our Force....Fu! lcrum.......Opposing Force {Move things} Second row: (wheelbarrow) Fulcrum......Opposing Force......Our Force {Easier to lift} Third Class: (Baseball Bat) Fulcrum.......Our Force.......Opposing Force {Faster} transferrable Pulleys: 2x Easier for each x-tra wheel than a veritable(a) one. Potential Energy- Built up energy. Kinetic Energy- Energy of moving objects Warmth transfers to cool energy. Chapter 13 Static electricity Opposites attract Like charges repel galvanising Energy: the energy of charges in motion Static Electricity: the buildup or loss... If you want to get a full essay, send it on our website: BestEssayCheap.com

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