The Law of Conservation of Mass Assessment

Front

The amount of matter in an object is its _________.

Back

Mass

Tags

NGSS.MS-PS2-2

Front

What does The Law of Conservation of Mass state?

Back

Mass can not be created or destroyed (it just transforms)

Tags

NGSS.MS-PS1-5

Front

When you burn a candle, all that remains is a small puddle of wax. The puddle of wax has less mass than the original candle. The rest of the original candle’s mass was

Back

Transformed into gases

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Front

An example of a chemical reaction is ___________.

• Cutting a sheet of Paper into thin strips
• Freezing water into ice cubes
• Dissolving sugar into a glass of water
• Burning wood

Back

Burning wood

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Front

An example of a physical change is __________.

Back

Dissolving salt into a glass of water

Front

How many hydrogen atoms are in this compound?

Back

4

Tags

NGSS.MS-PS1-1

Front

The number of atoms on my reactants side should equal the number of atoms on my products side.

Back

True

Tags

NGSS.MS-PS1-5

Front

In an open system, matter is unable to flow in or out of the system.

Back

False

Front

What number represents the subscript in the chemical compound pictured?

Back

3

Front

_______ are the substance(s) that are left after a chemical change has taken place.

Back

Products

Tags

NGSS.MS-PS1-5