Chem Unit 1

What is matter?

• anything made of particles

• anything that has mass and volume

• solids, liquids, gases

• All of the Above

Laws are usually mathematically defined.

• True
• False

A scientific ____________ is a statement that describes what always happens under certain conditions in nature.

• law
• theory
• method
• variable

This picture represents: 

• Element
• Compound
• Mixture of Elements
• Mixture of Compounds

What type of mixture is this?

• homogenous mixture
• chemical
• heterogeneous mixture 
• solid mix

A substance with two or more elements that are combined in a fixed proportion

• colloid
• compound
• element
• solution

A substance in which all the atoms are the same

• colloid
• homogeneous mixture
• solution
• element

A mixture that contains two or more substances blended evenly throughout

• heterogeneous mixture
• homogeneous mixture
• suspension
• colloid

Your hypothesis MUST be _________________________.

• silly

• testable

• a variable

• educational

A good or “valid” experiment will only have ________ Independent variable!

• 1

• 2

• 3

• It doesn't matter!