Chapter 2 Review Questions

What has mass and takes up space?

• Matter

• Light

• Sound

• Energy

Tags

NGSS.MS-PS1-5

Give three examples of non-matter.

• Light, heat, sound (any three correct examples)

• Water, air, stone

• Wood, iron, plastic

• Paper, oil, sand

Give two pieces of evidence that led to the acceptance of the particle model of matter.

• Brownian motion, diffusion (any two correct pieces of evidence)

• Evaporation and condensation only occur in solids

• The color of a substance changes with temperature

• All substances are magnetic

Tags

NGSS.MS-PS1-4

NGSS.MS-PS1-5

Why was the particle model of matter accepted over competing models?

• It explained observations and experimental results better than other models.

• It was the oldest model proposed.

• It was easier to draw diagrams for this model.

• It was supported by popular opinion rather than evidence.

Tags

NGSS.MS-PS1-5

Define weight.

• The force of gravity acting on an object.

• The amount of space an object occupies.

• The speed at which an object moves.

• The temperature of an object.

Tags

NGSS.MS-PS2-4

Define mixture.

• A combination of two or more substances that are not chemically combined.

• A pure substance made of only one type of atom.

• A substance that cannot be separated by physical means.

• A chemical compound formed by a chemical reaction.

What do we call a mixture that appears the same throughout?

• Homogeneous mixture

• Heterogeneous mixture

• Suspension

• Colloid

Give an example of an element, a compound, a heterogeneous mixture, and a homogeneous mixture.

• Element: Oxygen; Compound: Water; Heterogeneous mixture: Salad; Homogeneous mixture: Saltwater

• Element: Water; Compound: Oxygen; Heterogeneous mixture: Saltwater; Homogeneous mixture: Salad

• Element: Salad; Compound: Saltwater; Heterogeneous mixture: Oxygen; Homogeneous mixture: Water

• Element: Saltwater; Compound: Salad; Heterogeneous mixture: Water; Homogeneous mixture: Oxygen

The state of matter of a substance depends on what two properties?

• Temperature and pressure

• Volume and mass

• Color and density

• Shape and size

Tags

NGSS.MS-PS1-4

A substance with low density and changeable shape and volume that is highly compressible is in what state of matter?

• Gas

• Solid

• Liquid

• Plasma

Tags

NGSS.MS-PS1-4