Physical Properties of Matter Grade 5

mass

measurement of how much matter is in an object -how many atoms are in an object and how dense they are

Temperature

the measure of the energy in motion in the particles of matter, which we feel how hot or cold something is

example gas and solid

balloon and basketball

Matter

Anything that has mass and takes up space, anything that is a solid, liquid or gas, living or not living

reversible change

a change that is not permanent and can be undone

irreversible change

a change that is permanent and a new substance is formed

atoms

are the small building blocks of chemicals e.g h 2 oh- has 2 hydrogen and 1 oxygen atom

give examples of gas and liquid

baking soda and vinegar

signs of physical changes

change od shape, colour, state, can easily be turned back

signs of chemical change

change of colour, an odor is given off, change of temperature, bubbling, precipitation is left behind

properties of matter that make them useful

describe paper e.g

solid and liquid

filled water bottle, ice

sold, liquid and gas

human, plant ,animals

changes in staTE

involve release of heat or absorption of heat

precipitate

is the solid created in a solution after a chemical reaction

Volume

the amount of space something takes up

Gas

the state of matter in which a substance does not have a definite shape or volume. takes shape of container spreads when not contained e. fog, oxygen, smoke

Solid

the state of matter in which a substance has a definite shape and a definite volume Does not change shape easily molecules closely packed together melts can't be compressed e.g - ice, water bottle, plastic

Liquid

the state of matter in which a substance has a definite volume but no definite shape takes shape of container spreads when not contained -molecules close together freeze, evaporate e.g water, blood

absorbtion

to gain something

release

to loose something