Chpt. 2: Measurements and Calculations

Is a logical approach to solving problems by observing and collecting data, formulating hypotheses, testing hypotheses, and formulating theories that are supported by data.

• Scientific method

• Model

• Volume

• Hypothesis

Tags

NGSS.MS-ETS1-3

NGSS.MS-ETS1-4

Is a specific portion of matter in a given region of space that has been selected foe the study during an experiment or observation.

• Theory

• Model

• Hypothesis

• System

Testable statement

Tags

NGSS.MS-LS1-5

A broad generalization that explains a body of facts or phenomena.

In science is more than a physical object; it is often an explanation of how phenomena occur and how data or events are related.

• Theory

• Model

• Quantity

• Weight

Tags

NGSS.MS-PS1-1

NGSS.MS-PS3-1

Is something that has magnitude, size, or amount.

• Quantity

• Precision

• Accuracy

• Weight

Scientists al over the world have agreed on a single measurement system called Le Systeme International d'Unites.

• Conversion factor

• Dimensional analysis

• SI

• Quantity

Is a measure of the gravitational pull on matter.

Tags

NGSS.MS-PS2-4

NGSS.MS-PS2-5

Is the amount of space occupied by an object.

The ratio of mass to volume or mass divided by volume

• Volume

• Weight

• Precision

• Density