Models

How many energy levels does this element have

• 7

• 5

• 3

• 2

Which Element is this?

• Carbon (C)

• Magnesium (Mg)

• Beryllium (Be)

• Sodium (Na)

Tags

NGSS.MS-PS1-1

_________________ is something that scientists use to represent an idea or explanation.

• A question

• A claim

• A model

• A theory

Models can be helpful in scientific investigations because

• It may not be possible to work safely with the real thing.

• They can be smaller and easier to study than the real thing.

• They can be larger and easier to examine than the real thing.

• all of these answers are correct.

Tags

NGSS.MS-ETS1-4

This picture of the carbon cycle is an example of

• physical model

• mathematical model

• conceptual model

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

A ​ (a)   is built to explain how something works

• atom

• compound

• model

• molecule

• natural element

• states of matter

Tags

NGSS.MS-PS1-1

Which of the statements are INCORRECT about models.

• Models must be exactly like what is being modeled.

• Models communicate information.

• Models can be modified and improved.

• Models can be drawings with labels.

Tags

NGSS.MS-ETS1-4

Models are used to better explain and understand a complex thing.

• True

• False

Tags

NGSS.MS-ESS2-1

NGSS.MS-ETS1-4

NGSS.MS-LS2-3

Two models of the same phenomenon can be very different because they may be explaining two different ideas about the same object or system.

• True

• False

More than one model of the phenomenon can be equally valid and useful, as long they both can explain the phenomenon and be used to make predictions about how the system works.

• True

• False

Tags

NGSS.MS-ETS1-4