Water Phase Change and Temperature

Based on observations made in the lab, we determined the boiling point of water to be closest too.

• 96 C

• 97 C

• 99 C

• 100 C

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

NGSS.MS-PS3-5

When water is boiling its temperature

• begins to drop.

• continues to rise.

• stays the same.

• oscillates up and down

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Liquid water can exist belong the temperature of its freezing point.

• True

• False

Tags

NGSS.MS-PS1-4

A wide variance in a class's data for the response time of a set of the same electronic thermometers suggests

• a problem with the independent variable

• a problem with the dependent variable

• inconsistency in lab procedure between groups

• faulty sensors

The instrument used to take data is called a blue tooth digital

• hygrometer

• barometer

• spectrometer

• thermometer

What did adding salt to the ice water in the freezing/thawing lab do? Check all that apply.

• It lowered the freezing point of the water in the beaker.

• It lowered the freezing point of the water in the test tube.

• It lowered the temperature of the water in the beaker.

• It lowered the melting point of the water in the test tube.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

What should have, or did happen, to the graph of the temperature of the water in the testube in the freezing lab? Answer all that apply.

• It dropped to 0 C and flat-lined.

• It dropped below 0 C

• It spiked up to 0 C when the water froze and flat-lined

• It spiked down to 0 C and flat-lined at freezing

Tags

NGSS.MS-PS1-4

The rate for measurement in the boiling lab was

• 100 samples/minute

• 100 samples/second

• 0.1 samples/second

• 0.1 samples/minute

The rate for sampling in the freezing lab was

• 100 samples/min

• 100 samples/sec

• 0.1 samples/min

• 0.1 samples/second

As the ice that formed in the test tube melted, its temperature

• rose rapidly

• stayed close to 0 C

• jumped up 5 C and flat-lined

• dropped below 0 C

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4