Types of Matter
What are the three states of matter?
Solid, liquid, and gas
A uniform mixture of two or more pure substances
Two elements combined are called a
What is chemistry?
Chemistry is the study of matter and its changes
What type of matter has no defined shape and takes the shape of the container they are stored in?
Liquids
What is a mechanical mixture?
A mixture where the composition is not uniform.
List one job that involves chemistry.
Baking, chemical engineering, photography
What is the universal solvent?
Water
Solids
Any solid, liquid, or gas that only contains one type of particle throughout.
A pure substance.
List 3 examples of mixtures:
Example answers: pop, soil, sugar water, coffee, juice, chocolate milk, hot chocolate, tea
All matter is made of tiny particles called __________.
Atoms
________ have particles that move freely at high speeds.
Gases
The substance that is doing the dissolving
A solvent
Why must we dispose of uranium carefully?
It releases harmful radiation
What is another word for a homogeneous mixture?
Solution
Heating up particles causes them to move ___________.
Faster
What is a solute?
The substance that is dissolved in the solution
Name 3 points of particle theory.
At least 3 of the following are named:
1. All matter is made up of tiny particles
2. The particles are always moving
3. There is space between all particles
4. Adding heat makes particles move faster
5. All particles in a pure substance are the same. Different substances are made up of different particles.
What is the difference between a pure substance and a mixture?
Pure substances can be elements or compounds. Mixtures are substances that are physically combined, but can be separated into their original components.