The graduated cylinder shown to the right contains three liquids labeled 1, 2 and 3.  The objects (A, B, and C) in the cylinder are made from three different substances.  What is the most dense?

• A
• C
• 1
• 3

Tags

NGSS.MS-PS1-2

The temperature at which a solid becomes a liquid is called:

• melting point
• boiling point
• density
• sublimation

Tags

NGSS.MS-PS1-4

True or False:  Boiling water is a chemical change.

• true
• false

Tags

NGSS.MS-PS1-4

Which of these is a chemical property of oxygen?

• It boils at -182.95°C.
• It is a gas at 25°C.
• It is colorless.
• It will result in rust when combined with iron and water.

Tags

NGSS.MS-PS1-5

I have an air freshener in my room.  It turns from a solid to a gas without becoming a liquid.  Is this a physical or a chemical change?

• physical
• chemical

Tags

NGSS.MS-PS1-4

A change in matter that produces a new substance is called a _______ change.

• physical
• chemical
• state
• color

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

True or False:  Ripping paper is a physical change.

• true
• false

Which of these is a chemical change?

• Ripping paper
• Melting metal
• A rusting car
• Both melting metal and a rusting car

Tags

NGSS.MS-PS1-2

Which physical property describes the ability of a substance to dissolve in another substance?

• solubility

• density

• melting point

• flammability

A solid that forms when 2 liquids react during a chemical change is called a(n):

• precipitate
• chemical property
• density
• physical property

Tags

NGSS.MS-PS1-2