Particles of a liquid

are free to move around one another but still touch.

are tightly packed together and stay in a fixed position.

The temperature of a substance increases as___.

the average kinetic energy of its particles increases

the substance's volume increases

According to the Kinetic Molecular Theory a liquid's (SELECT ALL THAT APPLY)

particles are held close together by intermolecular forces

particles are in constant motion

particles are vibrating in place and closely packed

Water is "sticky" because...

of the attraction between the positively charged hydrogen atoms and the negatively charged oxygen atom.

Why does ice float on liquid water?

It floats because it has lower density than liquid water.

Ice does not float on liquid water.

It has a higher density than liquid water.

Pressure is caused by:

Gas molecules colliding with surfaces

Gas molecules reacting with each other

Gas molecules colliding with each other

Which of the following is not true about a pool of water and a piece of ice

They have different chemical properties

They have different states of matter

They have different physical properties.

Characteristics used to describe matter are called _________.

Both physical and chemical properties

Neither physical and chemical properties

What does WHMIS stand for ?

Workplace hazardous materials information system

walking ham matter information system

work help math information system

welch hungry materials in snacks

information helping hands matter system

What does this GHS symbol means?

Carcinogenicity/ Aspiration Hazard

A chemical reaction is balanced when

Both sides have the same number of atoms

both sides have the same elements

What will weigh more when a chemical change is complete? The reactants before the chemical reaction, or the product after the reaction is complete?

The product always weighs more than the reactant

The reactant will weigh more than the product

They both will loose mass after the reaction

What does a chemical change result in?

A change in the way atoms are bonded to each other.

A phase change in the substance (ex. liquid to solid)

A change in texture of the substance.

A change in the way atoms are arranged in space.

Why do objects sink or float in H 2 O ?

Because their densities are higher or lower than compared to water

Because their densities are using gravity to pull down

Because their densities are heavier or lighter

Because their mass and volumes are equal

Science 8: Unit 2 Final Practice

Quiz

•

Chemistry, Science

•

8th Grade

•

Practice Problem

•

Medium

•

NGSS

MS-PS1-4, MS-PS1-2, MS-PS1-1

+13

Standards-aligned

Karen Chong

Used 9+ times

FREE Resource

70 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

To change from one state of matter to another state of matter is called?

phase change

potential change

kinetic change

thermal change

How much space particles take up is called?

Density

Volume

Mass

Weight

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How close together particles are is called?

Mass

Weight

Vibrate

Density

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Mass is _______________.

how much matter is in a object

a measurement

how had gravity pulls on an object

how much volume is in an object

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

At higher temperatures

particles in an object have less energy

particles in an object move faster

a gas contracts

A gas

has a definite shape but no definite volume

has a definite volume but no definite shape

has fast-moving particles

Which state of matter has a definite shape?

solid

liquid

gas

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To change from one state of matter to another state of matter is called?

How much space particles take up is called?

How close together particles are is called?

Mass is _______________.

At higher temperatures

A gas

Which state of matter has a definite shape?

What is happening when my ice cream changes from a solid to a liquid?

Particles in a ______________________ move quickly and are far apart.

Particles of a liquid

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