Matter
All matter is made up of tiny particles called ___________.
What are atoms?
A liquid changes directly to a gas.
What is evaporation?
Matter that is made up of only one kind of atom.
What is an element?
Matter can be classified into two categories.
What is a pure substance or mixture?
Cutting wood in half is what type of change.
What is a physical change?
All matter has _________ and ____________.
What is mass and volume?
A solid changes directly from a solid to a gas without first becoming a liquid.
What is sublimation?
Name 3 elements found in your body.
What is oxygen, carbon, and phosphorous?
Elements and Compounds are considered what type of matter.
What is pure substances?
Cooking an egg is what type of change.
Has a fixed shape and volume because particles move very little and slowly.
What is a solid?
Is a change of state of a substance from a gas to a liquid.
Condensation
Elements that come together form _________.
What is compounds?
There are two types of mixtures.
What is homogeneous and heterogeneous?
Burning a piece of paper is what type of change.
What is a chemical change?
Takes the shape of its container because the particles can move freely.
What is a liquid?
The reverse of freezing.
What is melting?
In compounds, atoms are joined together to form __________________.
What is molecules?
Cereal is an example of what type of mixture?
Always fills whatever container it is in, the particles are moving constantly in all directions.
What is gas?
Changes of state are called _________.
A molecule of water is made up of what elements.
What is hydrogen and oxygen?
Salt is an example of what type of pure substance.
What is a compound?
Name three indicators that a chemical change has occurred.
What is a new color appears, bubbles form, or a precipitate forms?