Safety, History, and Properties Quiz.

What is Chemistry

Chemistry- the science concerned with matter, properties of matter, energy and changes in matter

what is a chemical

any substance used or produced in a chemical process

what is matter

Matter anything that has mass and takes up space -made of chemicals.

What is mass

mass is the amount of matter measured in kg or g

describe a solid

Solids hold their shape and volume

what are examples of chemicals

sugar, salt, wood and plastics.

what is volume

volume how much space an object takes up.

what is volume measured in for liquid and gasses

litre or milliliters

what is the measurement of volume for solids

cm³ (cc) or m³

describe a liquid

Hold their volume and take up the space of the container

describe a Gas

particles Expand To fill the container

What are the three reasons why you should follow safety rules

to avoid injuring yourself and others, so lab equipment doesn't get damaged or broken, So that you get the proper results and learn what you need to

what is plasma

charged gas particles

what are the four substances on the first nations medicine wheel

wind, fire, water, and rock

What is Democritus’ theory

everything is made of particles that cannot be broken further called atomos

different combinations of Atomos makes different materials

who is aristotle

one of the most famous greeks

was believed for 2000 years

all matter is made up of 4 elements earth, air, fire and water

what is alchemy

a mixture of witchcraft, magic and experiments

what did the alchemists develope what are used today

they developed a lot of our modern lab equipment

what were the three goals of the alchemists

turn lead and other metals into gold

to find the secret of extending life

develop a universal solvent which could dissolve anything.

how was chemistry founded

resulted when many of Aristotle’s ideas were disproven by the observations of alchemists

a combination of the ancient theories and the experiments of the Alchemists

what is state at room temperature

is it a solid, liquid, or gas at about 22 Celsius

what is colour and lustre

first appearance of a substance and how a substance reflects light (shiny or dull)

melting/freezing point

-is it a solid liquid or gas at normal temperatures

density

- mass per unit volume (how "heavy" an equal sized container would be)

solubility

- how much of a substance will mix with water

ductility

-a solids ability to be stretched into a wire

crystal shape

-are the particles of a solid lined up to form smooth faces and sharp edges

conductivity

-a substances ability to allow heat and/or electrical energy to pass through it

-non conductors are called insulators

hardness

-a solids resistance to scratching

texture

-the feeling of the surface of a solid

malleability

the ability of a solid to be shaped and formed, non malleable objects are brittle

what is the definition chemical properties

a characteristic of a substance that describes how it changes into a new substance

what are some chemical properties

absorbs heat during reaction, combustible, forms a gas when heated, reacts with acids, reacts with water