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James has three blocks with the same size. He places the blocks in water and observes them. Block A floats in the middle, blocks B sinks to the bottom and C floats to the top of the water. Which statement below can James make about the density of each of the blocks?

• Block A is less dense than block B

• Block C is more dense than block B

• Block B is more dense than block C

• Block C is more dense than block A

I am known for being the basic unit of an element and have three subatomic particles (proton, neutron, and electrons).

What am I?

• An atom

• A compound

• A homogenous mixture

• A solution

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-5

In order to be classified as matter an object must:

(choose all that apply)

• Have mass

• Take up space

• Have a gravitational pull

• Have luster

Choose the example of a chemical change.

• Boiling Water

• Ripping a piece of paper

• Shaping a hamburger patty

• Baking a loaf of bread

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Density is defined as

• The amount of space an object takes up

• The amount of "stuff" inside an object

• Mass per unit volume

• How heavy an object is

A ____________ is known as two or more atoms(different of the same) that have been chemically bonded together in a set ratio.

Tags

NGSS.MS-PS1-1

Which of the following describes a homogenous mixture?

• cake mix

• pepper suspended in water

• sand and water

• a sandwich

_________ is defined as the amount of space an object takes up.

Choose the following example that is an element.

• Hydrogen

• Cake mix

• Water

• Plastic

Which statement below best describes the movement of particles in a solid?

• The particles do not move

• The particles move freely

• The particles vibrate in a fixed position

• The particles slide easily past one another