GED Science TestPhysical ScienceEasy
A chemist is analyzing a sample of an unknown substance. They determine that the substance has a definite volume but an indefinite shape. Based on these properties, what state of matter is the substance most likely in?
- APlasma
- BGas
- CSolid
- DLiquid
Show answer & explanationAnswer & explanation
Correct answer: D. Liquid
Liquids are characterized by having a definite volume (they occupy a specific amount of space) but an indefinite shape (they take the shape of their container). Solids have definite volume and definite shape, while gases and plasma have indefinite volume and indefinite shape.
Why the other options are wrong
- A. Plasma has an indefinite volume and an indefinite shape, similar to a gas but ionized.
- B. Gases have an indefinite volume and an indefinite shape.
- C. Solids have a definite volume and a definite shape.
States of Matter (Liquid)
A liquid is a state of matter that has a definite volume but no definite shape. It takes the shape of its container and its particles are able to flow past one another.
- Definite volume
- Indefinite shape (takes container's shape)
- Particles are close but can move past each other
- Incompressible
Memory trick: Solid, Liquid, Gas: Shape and Volume Pass.