Test 1 Review Grab a snack and then pull out your yellow review sheet. We’ll start at 7:15am

Test Format 16 questions – Fill in the blank – Free response – Multiple choice – Graph Station format -answer 2-3 ?’s, then rotate to next table

Key Vocab words Dependent variable Independent variable Mass Volume Property Change Physical Chemical Physical property Physical change Chemical property Chemical change States of matter Solid Liquid Gas

Variables Dependent Variable  what you observe / measure Independent Variable  what influences what you observe (DV) “The dependent variable depends on the independent variable”

Examples Penny Lab DV – mass of the penny IV – year/metal composition Spaghetti Towers DV – height of tower IV – design/structure Paper Towel DV – drops of water IV – Brand

Measuring Mass = Matter – Measured by = scale or balance – Units in = g, mg, kg Volume = Space – Measured by = graduated cylinder, ruler, water displaced – Units in = mL, cm3 Length = long – Measured by = ruler – Units in = meters Temperature = heat – Measured by = thermometer – Units in = Celsius

States of Matter states of matter - atoms

Property : Describes, explains Ability What it could/can do Adjective Change : Actually changes Verb

Property or Change? Boiling point of a chemical 2 different liquids mix  bubbles Food coloring in water Burning an egg It has a yellow color It produced a smell It melted Property Change Property

Physical : Phase Size Shape Color Chemical Fire Reacts Rusts 5 evidences (Osos Can Produce Grande Turds)

PP: DESCRIBES – phase, size, shape, color, what it COULD do or has ABILITY to do CP: DESCRIBES – ABILITY to CHANGE atoms PC: CHANGES – phase, size, shape, color, appearance CC: CHANGES – new substance, use 5 evidences

PC or CC Tearing paper Burning paper Breaking wood Campfire Mixing kool aid Cooking a cake Physical change Chemical change

PP Volume Density Freezes at 30 C Boiling point Can melt at room temperature Flexible Magnetic Bouncy Floats Solid, liquid, gas state of matter CP Flammable/non flammable Can rust Can tarnish Can burn Can react with water PC Breaking a stick Dissolving kool aid Food coloring in a liquid Cutting hair Bending metal Scrapping a crayon Melting chocolate Evaporated water CC Gas produced Light given off Odor produced Diet Coke + Mentos = Bubbles Baking Soda + Vinegar = colder Photosynthesis Respiration Rusting Leaves changing color