Chemical Reactions Learning Goals

• Chemists _____ substances in order to identify their properties.

• observe

• analyze data
• perform experiments
• study formulas

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-2

• Scientists work in communities to help keep ____ clean and safe for consumption.

• air
• water
• food
• land

Tags

NGSS.MS-ESS2-4

• Science investigations use a variety of methods and tools to make ___ and observations.

• form hypotheses
• measurements

• conduct experiments
• analyze data

Tags

NGSS.MS-PS1-2

NGSS.MS-PS2-2

• Different substances have different ___ .

• properties
• shapes
• sizes
• colors

Tags

NGSS.MS-PS1-2

• More detailed observations provide ___ evidence.

• Less detailed observations provide evidence.
• Observations do not provide evidence.
• Observations are not important in providing evidence.
• stronger

• Scientists can use ___ to help them distinguish between different substances.

• geology
• psychology
• spectroscopy
• • properties

Tags

NGSS.MS-PS1-2

• Substances are made entirely of ___.

• atoms
• energy
• cells
• molecules

Tags

NGSS.MS-PS1-1

• Atoms are extremely small; they are not ___ to the eye.

• visible
• audible
• tangible
• edible

• Science ___ are based on a body of evidence developed over time.

• conclusions
• experiments
• theories

• hypotheses

• The term theory as used in science is ___ from the common use outside of science.

• unrelated
• opposite
• similar
• • very different