1 Physical property Can be observed or measured

1. Physical property - Can be observed or measured without changing a substance into another substance 2. Are observed when using one or more of your 5 senses: touching, seeing, smelling, tasting, and hearing

3. Size-dependent – the properties that change when the size changes. Ex. - length, weight, height, volume, mass 4. Size-independent – the properties that do not change, no matter what the size is Ex. - density, color, state

4. Physical properties include: color, odor, shape, state (solid, liquid, gas, plasma), density, mass, and volume

Luster is how shiny a substance is. Some examples include: glass, diamonds, & metals

Malleability is the ability of a material to bend or be hammered into other shapes without breaking.

Ductility is the ability of a substance to be drawn into thin wires.

Solubility is the ability of a substance to dissolve in a liquid.

Conductivity is the ability to pass electricity or heat through a substance.

Hardness is a resistance to being scratched or dented.

Magnetic properties – some materials pull iron toward them. Other materials can be made into magnets.

Chemical property - describe a substance based on the ability to change into a new substance with different properties. Can only be observed by actually changing the identity of the substance. Example: A piece of paper burns and turns into ash. The chemical property of the paper is that it is flammable.

Flammability: The ability to catch on fire Oxidation: The ability to react with oxygen Toxicity: The ability to be poisonous Sensitivity to Light: The ability to change when exposed to light Reactivity with water: The ability to react with water

Take a moment to list as many physical AND chemical properties of an apple as you can. Chemical Properties Physical Properties • oxidation – can react • red/green with oxygen & turn • shiny brown • round • smooth

Take a moment to list as many physical AND chemical properties of paper as you can. • • Physical Properties smooth thin dull flat Chemical Properties • sensitivity to light (you can see this with old books & newspapers) • flammable

Ch P l a c i em y t r e p ro

Ph P l a c i ys y t r e p ro

P l a c i em Ch y t r e p ro FYI: A sting from a lionfish is extremely painful to humans & can cause nausea and breathing problems

Ph y t r e p ro P l a c i ys Dissolving sugar in water to make sweet tea

Ch P l a c i em y t r e p ro

Ph P l a c i ys y t r e p ro

P l a c i em Ch y t r e p ro FYI: This is sodium reacting with water…and igniting hydrogen gas

Ph P l a c i ys y t r e p ro

Properties 1) 2) 3) 4) 5) 6) 7) 8) 9) 10) 11) Conductivity k Ductility c Flammability d Hardness a Luster b Malleability e Oxidation i Reactivity with water Sensitivity to light j Solubility g Toxicity h a) b) c) d) e) f) g) h) f i) j) k) Definitions A resistance to being scratched or dented. The ability to reflect light. The ability to be stretched into wires. The ability to catch on fire. The ability to be hammered into a flat sheet. The ability to react with water. The ability to dissolve in a liquid. The ability to be poisonous. The ability to react with oxygen. The ability to change when exposed to light. The ability to pass electricity or heat through a substance.

No bell ringer today You need 1 sheet of paper. Put your name on it and number it from 1 -24

Textbook – pg. 273 - 280