chemical and physical properties and atoms

Is wood burning a physical or chemical change?

• Physical 
• Chemical

Tags

NGSS.MS-PS1-2

Is Gatorade powder dissolving in water physical or chemical change?

• Physical 
• Chemical

Tags

NGSS.MS-PS1-2

A change in which the form or shape of a substance changes but the chemical makeup of the substance remains the same.

• chemical change
• reaction
• physical change
• solution

Tags

NGSS.5-PS1-4

What is the definition of chemical change?

• any change that results in the formation of new chemical substances. 
• changing of only the appearance of the object
• matter cannot be created or destroyed, only change form
• changes affecting the form of a chemical substance, but not its chemical composition.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Is mold growing on cheese a physical or chemical change?

• Physical 
• Chemical

Tags

NGSS.MS-PS1-2

Which of these is a physical change?

• dissolving

• burning

• tarnishing

• reacting to acid

Which of the following is a chemical change?

• folding

• boiling

• cooking

• raising temperature

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Which of these is a chemical property?

• state of matter

• malleability

• viscosity

• flammability

What does the law of conservation of mass tell us about atoms during chemical changes?

• they can't be created, but they can be destroyed

• they can be created, but they can not be destroyed

• they can rearrange, but there has to be the same amount of each element before and after a reaction

• they can rearrange, but the total number of atoms on each side can't be more than 25, which is the ionic number.

Tags

NGSS.MS-PS1-5

Which is not an example of energy

• desk

• sunlight

• rainbow

• heat