PS Unit 3 Lesson 1 Self Check

Flammability is the ability of a substance to burn. The wood ​ (a)   this property.

• has
• does not have

Flammability is the ability of a substance to burn. The metal pot ​ (a)   this property.

• does not have
• has

Flammability is the ability of a substance to burn. This is a chemical property because the identify of the substances ​ (a)  

• changes.
• stays the same.

Tags

NGSS.MS-PS1-2

The mass of a length of metal wire is 45 g. When the wire is placed in a graduated cylinder with water, it displaces 5 mL of water.

What is the density of the metal? (Type the entire equation and the answer in the calculator.)

Mathematical Equivalence

ON

Why does the milk flow out of the glass and spread out into a thin puddle rather than staying in the glass or spreading out more across the floor?

• The particles can break apart, but cannot move.

• The particles can slide past each other, but attractions hold them close together.

• The particles cannot move, but they can grow in size.

How can the volume of gas in the balloons be greater than the volume of the cylinder used to fill them?

• A gas has a fixed shape.

• A gas expands to fill its container.

• The volume of the container does not depend on the gas.

If the gas cylinder is empty after all of the balloons are filled, how does the total number of particles in all the balloons compare to the total number of particles that were in the cylinder?

• There are more particles in the balloons than were in the cylinder.

• There are fewer particles in the balloons than were in the cylinder.

• The number of particles in the balloons is the same as the number of particles that were in the cylinder.

Tags

NGSS.MS-PS1-5

A student drew a model showing particles that are close together in a regular pattern. Which sample has the student most likely drawn a model of?

• a bar of gold

• paint

• air

• water vapor

Tags

NGSS.MS-PS1-1

Which of the following are chemical properties of a substance? Physical properties?

Groups:

(a) Physical Properties

,

(b) Chemical Properties

• reactivity

• boiling point

• magnetism

• freezing point

• flammability

Solids, liquids, and gases can be classified by their abilities to change their shapes and volumes.

Which of the following describe the properties of solids, liquids, and gases? Select all that apply.

• Liquids and gases can change shape.

• Only gases can change volume.

• Only solids have a fixed shape.

• Liquids and gases have a fixed volume.

• Solids and gases can change volume.