Conservation of Mass Quiz

Which happens during a chemical change? Choose ALL the correct answers.

• The mass of the substances increase.

• Atoms are rearranged to create a new substance.

• The atoms of the reactants are not changed in any way.

• Matter is lost during the reaction.

• The mass of the products is the same as the mass of the reactants.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Which TWO characteristics describe a physical change?

• This type of change is reversible.

• This type of changes is usually not reversible.

• This type of change creates a new substance.

• This type of change includes burning a substance.

• This type of change includes dissolving honey in tea.

A wildfire burns in a forest. Which best describes what is happening? Choose ALL the correct answers.

• Matter becomes rearranged.

• Atoms of the trees and plants are destroyed.

• The mass of the trees is greater than the mass of the products (ash, smoke, etc.).

• The mass of the products (ash, smoke, etc.) is greater than the mass of the trees.

• The amount of matter is unchanged.

Tags

NGSS.MS-PS1-5

The Law of Conservation of Mass states that: ________________ and ________________. Choose ALL the correct answers.

• Matter is destroyed in a physical change only.

• The mass of sugar and water stays the same after dissolving.

• Sugar goes away after dissolving in water.

• Matter is destroyed in a chemical change only.

• Mass of a ball of clay is the same before and after squishing it.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

. _____ tearing a piece of paper

• Physical Change

• Chemical Change

burning a log

• Physical change

• Chemical change

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

melting ice cubes

• physical change

• chemical change

Tags

NGSS.MS-PS1-4

anything that takes up space and has mass

• Energy
• Time
• Thoughts
• Matter

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NGSS.MS-PS1-5

a change in the physical properties of a substance (reversible)

• Chemical change
• Biological change
• Emotional change
• Physical change

Tags

NGSS.MS-PS1-4

substances that result from a chemical reaction

• Ingredients
• Products
• Byproducts
• Reactants

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5