Phases of Matter
Matter in this phase has a definite shape and volume.
What is a solid?
The process of a liquid changing into a gas is what type of change?
What is physical?
Pure oxygen (O₂) is this type of matter.
What is an element?
This element is needed for humans to breathe.
What is oxygen?
Matter is anything that has mass and takes up _____.
What is space?
When ice melts, it changes from a solid to this phase.
What is a liquid?
Rust forming on metal is this kind of change.
What is chemical?
Water (H₂O) is this type of matter.
What is a compound?
This element has the chemical symbol Fe.
What is iron?
The smallest unit of an element is called this.
What is an atom?
Water vapor is an example of this phase of matter.
What is a gas?
Melting butter is what type of change?
What is physical?
Salad is this type of matter because the parts can be separated.
What is a mixture?
This element is a gas and makes balloons float.
What is helium?
Name the three common states of matter.
What are solid, liquid, and gas?
The process of a liquid changing into a gas is called this.
What is evaporation?
Burning wood is this type of change because a new substance forms.
What is chemical?
Air is classified as this because it contains several gases together.
What is a mixture?
The symbol Na stands for this element.
What is sodium?
A change in size, shape, or state without forming a new substance is called this.
What is a physical change?
When a gas cools and changes into a liquid, this process occurs.
What is condensation?
Name one sign of a chemical reaction.
What is a change in color/gas produced / temperature change / precipitate formed?
(accept any correct sign)
A compound is made when two or more elements are chemically _____ together.
What is bonded?
This element is liquid at room temperature and used in old thermometers.
What is mercury?
If two clear liquids mix and bubbles suddenly form, this is evidence of a _____ change.
What is a chemical change?