Physical Science

The smallest unit of an element that retains the properties is a(n)

• proton

• metal

• atom

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-5

Particles with more than one atom that are joined together are called.....

• metalloids

• molecules

• protons

Tags

NGSS.MS-PS1-1

Which occurs when atoms link together in new ways to create a substance that will be different from the original substances?

• chemical change

• physical change

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

What is the amount of matter in an object?

• mass

• weight

• gradual

Can you reverse a physical change?

• Yes

• No

Tags

NGSS.MS-PS1-4

Particles are scattered throughout and block the passage of light in a colloid.

• True

• Fa;se

Tags

NGSS.MS-PS4-2

Properties such as luster, conductivity and flexibility are used to describe which type of elements?

• metal

• nonmetals

• gases

• plasma

If I make a mixture of chocolate, pretzels and chex mix what kind of mixture is it?

• colloid

• heterogeneous mixture

• solution

How do you know what a chemical reaction has occured?

• change in color

• an odor

• bubbles

• all of these answers

Tags

NGSS.MS-PS1-2

At what temperature does a substance change from a liquid to a gas?

• boiling point

• dew point

• melting point

Tags

NGSS.MS-PS1-4