chapter 1 Chemistry review

Where are chemicals found in our daily lives?

• In our food

• In our water

• In our homes

• All of these and more

What is the BEST complete definition of Chemistry?

• The study of matter.

• The study of atoms, molecules, elements and compounds.

• The study of connections between the properties of matter and the atoms and molecules that make up matter.

• The study of chemical reactions.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

A possible explanation to a problem that has not yet been tested. 

• data
• theory
• hypothesis
• fact

This variable in an experiment is the one being deliberately changed by the scientist. 

• dependent variable
• independent variable
• data
• control group

Tags

CCSS.6.EE.A.2C

There are two types of data. Which type of data involves numbers that are obtained by counting or measuring?

• quantitative
• qualitative

Tags

NGSS.HS-ESS2-6

NGSS.HS-LS2-2

NGSS.HS-PS1-7

There are two types of data. Which type of data involves descriptions/photographs/illustrations that cannot be counted or measured?

• qualitative
• quantitative

A series of steps used by scientists to solve a problem or answer a question. 

• scientific method
• recipe
• data collection
• metric system

Tags

NGSS.HS-PS1-3

A list of the steps anyone could follow to conduct an experiment. 

• obervations
• question/problem
• materials
• procedures

Tags

NGSS.MS-PS2-2

Measuring the number of times a person breathes after exercise involves ____ data. 

• quantitative
• qualitative

Qualitative data relies on numbers.

• False
• True