Physical and Chemical Changes

Is spoiling food a physical or chemical change?

• phyiscal
• chemical

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

What happens when a piece of wood burns?

• A physical change takes place.
• A chemical change takes place.
• The wood loses its gravity.
• The wood loses its inertia.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

A physical change...

• changes the physical properties of an object, but does not create a new substance.

• creates a new substance and cannot be undone.

A chemical change

• changes the physical properties of an object, but does not create a new substance.

• creates a new substance and cannot be undone.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Which of the following is a physical change?

• Dissolving

• Rapid release of heat

• Fizzing (release of gas)

• Rusting

Which is NOT a physical change?

• Cutting a pizza into equal slices.
• Ice cubes melting back into liquid. water
• Baking cupcakes.
• A chocolate bar melting.

Which of the following is a example of physical change ?

• burning of wood

• photosynthesis

• melting of ice-cream

• ripening of fruit

Tags

NGSS.MS-PS1-4

In physical change , the substance formed has different properties than the original substance.

• True

• False

Is mowing the lawn a physical or chemical change?

• physical change

• chemcial change

A change in the size, shape, or state of matter.

• chemical change

• physical change

Tags

NGSS.MS-PS1-4