Unit 5 Study Guide

Front

A _______________ change creates new substances with different properties.

Back

chemical

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Front

A(n) _______________ is an educated guess about what might happen in an experiment.

Back

hypothesis

Tags

NGSS.MS-LS1-5

Front

During a chemical reaction in a closed system, the total mass will _______________.

Back

stay the same

Tags

NGSS.MS-PS1-5

Front

When salt dissolves in water, the total mass will _______________________.

Back

stay the same

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Front

When water evaporates, the total mass in a closed system will ____________________.

Back

stay the same

Tags

NGSS.MS-PS1-4

NGSS.MS-PS1-5

Front

If an experiment's results don't support your hypothesis, you should:

Back

Use the data to form new questions

Tags

NGSS.HS-PS1-2

Front

How does temperature affect reaction rates?

Back

Higher temperatures generally increase reaction rates

Tags

NGSS.HS-PS1-5

Front

Independent variable: ______________

Back

Temperature

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-3

NGSS.MS-PS3-4

Front

A hypothesis must be proven correct to be valuable in science.

Back

False

Front

Scientific conclusions should be based only on collected data.

Back

True

Tags

NGSS.MS-LS2-4

NGSS.MS-PS1-2