2019 Fall Semester Test Unit 1-4

Which is NOT a chemical change?

• Leaves changing colors in the fall
• Iron rusting
• Digesting Lunch
• Ice Melting

Tags

NGSS.MS-PS1-2

A mixture that is NOT evenly distributed is called ....

• Compounded
• Homogenous
• Heterogenous
• Salty

A mixture that contains two or more substances blended evenly throughout

• heterogeneous mixture
• homogeneous mixture
• suspension
• colloid

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

• colloid
• compound
• element
• solution

Tags

NGSS.MS-PS1-1

Food color is dropped into water to give it color. 

• Physical Change
• Chemical Change

Tags

NGSS.MS-PS1-2

You blow dry your wet hair. 

• Physical Change
• Chemical Change

Tags

NGSS.MS-PS1-4

Melting point

• Physical Property
• Chemical Property

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Reacts with water

• Physical Property
• Chemical Property

Tags

NGSS.MS-PS1-2

Three different people weigh a standard mass of 2.00 g on the same balance.  Each person obtains a reading of 7.32 g for the mass of the standard.  These results imply that the balance that was used is ____.

• accurate
• precise
• accurate and precise
• neither accurate nor precise

This bullseye demonstrates...

• High Accuracy & High Precision
• High Accuracy & Low Precision
• Low Accuracy & High Precision
• Low Accuracy & Low Precision

Tags

NGSS.HS-PS2-1