properties and states of matter

Which of these properties of an iron nail is a physical property?

• does not burn when a flame is applied

• reacts with hydrochloric acid to release hydrogen gas

• solid at room temperature

• rusts

On a cold morning, Fawn awoke to find frost on her bedroom windows. Which type of process is the formation of frost?

• color change

• physical change

• chemical change

• electromagnetic change

Which of the following examples in nature represents a chemical change?

• water freezing in a pond

• a tree branch breaking

• a tree burning after a lightning strike

• steam rising from pavement

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

How do crystalline and amorphous solids differ?

• Crystalline solids do not melt at a distinct temperature.

• Amorphous solids are made up of crystals.

• Crystalline solids have a regular pattern of particles, but amorphous solids do not.

• Amorphous solids are always soft.

Which of the following is a property of metals?

• They are dull

• They are good conductors.

• They break easily.

• They are not malleable.

Which of the following statements about nonmetals is true?

• Nonmetals are usually very shiny

• Many nonmetals are liquids at room temperature.

• Nonmetals are good electrical conductors.

• Many nonmetals are gases at room temperature.

What happens to the particles of a gas in a closed container?

• They remain packed tightly together.

• They spread out to fill the container.

• They slide around but still touch.

• They form a regular repeating pattern

Tags

NGSS.MS-PS1-4

A nail is not made up of fragments. It is only one piece. This is an example of

• a chemical property

• a physical reaction.

• a physical property

• a chemical bond.

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

• A jeweler bends metal.

• Liquid water freezes into ice.

• Glue hardens.

• A plant is burned in a forest fire.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Which of the following is a chemical property of a substance?

• the ability to conduct heat

• the ability to melt

• the ability to burn

• the ability to reflect light