Exploring Chemical and Physical Changes

What type of change occurs when a car is crushed into a compact cube of metal?

• Physical change

• Chemical change

• Both physical and chemical change

• Neither physical nor chemical change

When ice melts into water, what remains unchanged?

• The state of matter

• The molecular structure

• The temperature

• The appearance

Tags

NGSS.MS-PS1-4

Which of the following is an example of a physical change?

• Rusting iron

• Burning wood

• Cutting paper

• Baking a cake

What happens to the chemical composition of glass when it shatters?

• It remains the same

• It changes

• It becomes a new substance

• It releases energy

Tags

NGSS.MS-PS1-1

What characterizes a chemical change?

• Change in shape

• Formation of new substances

• Change in size

• Change in state of matter

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

What new substance is formed when iron rusts?

• Iron oxide

• Carbon dioxide

• Ash

• Water vapor

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

What indicates a chemical change when wood burns in a fireplace?

• Change in size

• Change in shape

• Release of light and heat

• Change in texture

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

What happens to the ingredients like flour, eggs, and sugar when they are baked into a cake?

• They form new compounds

• They dissolve

• They remain the same

• They change state

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

NGSS.MS-PS1-5

What process do plants use to convert carbon dioxide and water into glucose and oxygen?

• Fermentation

• Combustion

• Photosynthesis

• Respiration

Tags

NGSS.MS-LS1-6

What gas is produced when baking soda reacts with vinegar?

• Nitrogen

• Hydrogen

• Oxygen

• Carbon dioxide

Tags

NGSS.MS-PS1-2