In a free space gases expand.
No It Contracts. Unless there is some kind of gas which would make it form Bubbles. But no magma doesn't Expand It CONTRACTS! Contracts- Making Something smaller, pushing it together compressing it :)
Oil does expand when heated and contracts when cooled.
No, gas contracts or decreases in volume when cooled because the molecules lose kinetic energy and move closer together. This decrease in volume causes the gas to contract and take up less space.
The Diaphragm
Expand.
Contracts and flattens because the lungs expand.
Contracts and flattens because the lungs expand.
Glass expands and contracts according to the ambient temperature.
it expands and contracts when the temperature drops, the mercury contracts...when the temperature increases, the mercury expands
Bismuth contracts on cooling, rather than expanding. Its coefficient of thermal expansion is negative, meaning it contracts as it cools.
Wood expands and contracts in response to changes in temperature and humidity.
Applying heat to a gas will make it expand. If the volume of the gas is restricted (i.e. it cannot expand) then the pressure will increase.