Chemistry Midterm

What is the first step of the scientific method?

• reaching a conclusion
• making a observation
• stating a theory
• conducting an experiment

A hypothesis is

• observation recorded from an experiment

• educated guess

• a proposed explanation or reason for what is observed

• thoroughly tested model

A series of steps designed to help you solve problems and answer questions is

• hypothesis
• experiment
• observation
• scientific method

Tags

NGSS.HS-LS1-3

NGSS.HS-PS1-3

The study of the composition and structure of matter is the domain of which field of science?

• physics
• biology
• chemistry
• geology

Tags

NGSS.MS-PS1-1

In an experiment, the factor that we measure is called the 

• conclusion
• dependent variable
• independent variable
• control group

In an experiment, the one variable that is changed is called

• independent variable
• controlled variable
• experimental variable
• dependent variable

What type of measurements involve numbers?

• qualitative
• analytical
• problematic
• quantitative

Tags

NGSS.HS-PS1-7

NGSS.HS-LS2-1

NGSS.HS-PS2-2

What is something that has mass and takes up space?

• solids
• building blocks
• force
• matter

What is a physical property?

• A property that describes how something changes over time

• An observable property that describes the state of a system

• A property that describes how reactive something is

What is a chemical property?

• A property that describes the state of a system

• A property observed during a reaction

Tags

NGSS.MS-PS1-2