what is matter? matter: a substance that has mass and volume (takes up space)
TRANSCRIPT
What is Matter?
Matter: A substance that has mass and volume (takes up
space).
WAYS TO MEASURE MATTER
• Mass – the amount of matter in an object.– Measured in grams (g)
and kilograms (kg)– video
• Weight – the force of gravity on an object– how much do you weig
h? video
WAYS TO MEASURE MATTER
• Volume – The amount of space an object takes up.– Measured in milliliters
(mL) and liters (L)– Also measured in cm3
or m3 (length x width x height)
– 1 mL = 1 cm3
– video
Matter is made of Atoms
• An atom is the smallest basic unit of matter
• Tiny particles• Scientists have
identified 100 different types of atoms
• Always in motion
Molecule
• When two or more atoms bond together or combine
• Smallest amount of a substance made of combined atoms
• Always in motion
Element
• Pure substance– Contains single type of
atom– Can not separate into
other substances– More than 100
Compounds
• A substance that consists of two or more different types of atoms bonded together
• Creates a new substance
Examples
Table Salt
Dry Ice
Mixture• Combination of different substances
• Does not create new substance
• Can be separated by physical means
• Two types:– Heterogeneous– Homogeneous
STATES OF MATTER
• Matter can exist as 3 different phases or states.– Solid– Liquid– Gas
• All living and non-living things are made of matter.
Three Most Common States of Matter
• Liquid• Gas• Solid
Coca-Cola
Carbon in Soda
Glass Cup
SOLID
• Has a definite volume and a definite shape.
• A solid will not take the shape of a container.
• The particles in solids are packed together, thus keeping it’s shape.
• Examples:– Rocks– Desk– Apple
LIQUID
• has a definite volume but no definite shape.
• Takes the shape of its container.
• Particles are further apart and moving (pouring water)
• Examples– Water– Blood– Milk
GAS
• Has no definite volume and no definite shape.
• Fills a container of any shape or size.
• Random groups of particles moving rapidly.
• Examples– Air (mixture of different gases)– Water Vapor (water in a gas
form)– Gas Behavior
• Plasmas are super-heated gases.
• Plasma is an ionized gas.
• The atoms are different because they are made up of free electrons and ions of an element such as neon (Ne).
• Examples - stars - lightning - fluorescent light bulbs - neon signs
PLASMA
Examples of Particles Moving
•http://teacher.scholastic.com/activities/studyjams/matter_states/