Ms Ps1 2

What is a melting point?

• the temperature at which a substance changes from a liquid to a gas

• the temperature at which a substance changes from a solid to a liquid

• the temperature at which a substance changes from a liquid to a solid

• the temperature at which a substance changes from gas to plasma

Tags

NGSS.MS-PS1-4

Everything to the right of the arrow in the picture are called products.

• True

• False

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

A physical property is...

• a property that is observed and the substance does not change into something new

• a property that is observed and the substance changes into something new

A physical change happens when …

• the substance does not change into a new substance with new chemical properties

• the substance changes into something different with new chemical properties

What is a boiling point?

• the temperature at which a substance changes from a liquid to gas

• the temperature at which a substance changes from a solid to a liquid

• the temperature at which a substance changes from a liquid to a solid

• the temperature at which a substance changes from a gas to plasma

Tags

NGSS.MS-PS1-4

How closely particles are packed together is called?

• volume

• mass

• density

• area

A chemical property can only be observed when a substance changes into a completely different substance.

• True

• False

Tags

NGSS.MS-PS1-2

Which of the following is NOT a chemical property

• reactivity

• flammability

• toxicity

• density

Tags

NGSS.MS-PS1-4

Flammability refers to a substance's ability to burn.

• True

• False

Which of the following is NOT an example of a chemical change?

• Burning a piece of paper

• Baking a cake

• Digesting food

• Melting a metal can

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5