Assertion: foam | /r/HasProperty | formed
Facets:
value: by trapping pockets of gas
type: MANNER
value: by trapping many gas bubbles
type: MANNER
Source sentences:
text: These foams are presented as raw sheets and they can be cut into the desired petal shape and then can be formed by ironing to assemble artificial flowers by putting these petals together.
text: A foam is a substance that is formed by trapping many gas bubbles in a liquid or solid.
text: A foam is a substance that is formed by trapping pockets of gas in a liquid or solid.
text: There are two main types of blowing agents: gases at the temperature that the foam is formed, and gases generated by chemical reaction.
text: As the foam is formed, it changes in structure.