During what kind of change do the involved substances keep their properties?

• A chemical change

• A physical change

Tags

NGSS.MS-PS1-4

An example of a chemical change is:

• Boiling water

• A burning match

• Baking a cake

• Breaking a glass

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

A solid formed from the reaction of some solutions.

• A reactant

• A product

• A substance

• A precipitate

Tags

NGSS.MS-PS1-5

The chemicals on the left side of a chemical equation are called:

• reactants

• products

• solutions

• solvents

Tags

NGSS.MS-PS1-5

Select a sign of a chemical change.

• Change in color

• Change in smell

• Release of energy (heat or light)

• All of the above

Tags

NGSS.MS-PS1-2

What is an example of a physical change?

• Breaking a pencil

• Burning wood

• Souring milk

• Ice cream melting

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

What are the parts of a chemical reaction?

• Solutes and solvents

• Reactants and products

• Mixtures and solutions

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-5

What symbol do chemical equations use instead of an equal sign?

• A circle

• A line

• A square

• An arrow

Is it possible to reverse physical changes?

• Yes, substances in a physical change do not use their physical properties.

• No, any change is cannot be undone.

During a chemical change, how can you tell if a new substance has been formed?

• The substances mix together

• A new substance is formed

Tags

NGSS.MS-PS1-2