STAAR Chemistry Review Topic: Matter and its properties TEKS – The student knows the characteristics of matter and can analyze the relationships between.

STAAR Chemistry Review Topic: Matter and its

properties

TEKS – The student knows the characteristics of matter and can

analyze the relationships between chemical and physical changes and

properties.

Student Expectation (4A)

• --differentiate between physical and chemical changes and properties.

Index Card Time

• Title: Changes• Front: Physical Changes• Back: Change in size, shape or state. • Examples:

Physical Properties

• Malleable : • Ability to be hammered into thin sheets

• Ductile:• Ability to be drawn into a wire

• Luster:• Ability to reflect the light

Index Card Time

• Title: Matter Changes• Front: Chemical Changes• Back: New substance forms. • Color change. • Temperature change (endo/exo). • Gas forms. • Precipitate (solid) forms.

5 Signs of a Chemical Reaction

• There are five indicators that a chemical reaction has taken place.

• They are…1. Color change2. Temp. change3. Gas.4. Appearance of a

precipitate (solid)5. Light.

Physical or Chemical properties?

1. rusting iron

Answer: Chemical

2. dissolving in water

Answer: Physical

3. burning a log

Answer: Chemical

4. melting ice

Answer: Physical

5. grinding spices

Answer: Physical

Physical or Chemical Changes

Precipitant

All phases changes are physical

Student Expectation (4C)

• Compare solids, liquids, and gases in terms of compressibility, structure, shape and volume.

Index Card Time

• Title: States of Matter and Properties• Back: Make a chart which includes solid,

liquid and gas and the properties of shape, volume, compressibility and a diagram.

Shape Volume Compressibility (high or low)

Sketch a diagram

Solid

Liquid

Gas

Compressibility and the spacing of particles.

Particle vibrate in fixed position

Constant random motion spaced far apart.

Particles slide past one another

What happens to the gas particles in a balloon when it is compressed?

Student Expectation (4B)

• --- identify extensive and intensive properties.

Index Card Time

• Title: Intensive vs. Extensive Properties• Front: INTENSIVE IS SO INTENSE THAT THE

AMOUNT OF MATTER DOESN’T MATTER!!!!!• Back: Examples of each

Intensive or Extensive?1. Boiling point

Answer: Intensive

2. Melting point

Answer: Intensive

3. Color

Answer: Intensive

4. Odor

Answer: Intensive

5. Mass

Answer: Extensive

Student Expectation (4D)

• Classify matter as pure substances or mixtures through investigation of their properties.

Index Card Time

• Title: Substances and Mixtures• Back: Make the flow chart for classifying

matter. Include examples for• each category.

Flow chart

ElementPure and made up of only itself!!!!

Pure

Compounds: Combining two or more elements together.

Chemically combined.The same no matter where you find the compound.

Pure!!!!

MixturesCan be separated physically, not chemically combined.

Homogeneous or HeterogeneousMade of several different types of atoms and element.

SolutionHomogeneous Salt Water solution

Homogeneous

HeterogeneousMixture

Learning Check

Identify if the following are 1) Homogeneous or 2) Heterogenous

1. __air 4. __ salad dressing2. __ink 5. __coffee (black)3. __ soft drink 6. __Chicken

noodle soup

Learning Check

Identify if the following are 1) Homogeneous or 2) Heterogenous

1. 1 air 4. 2 salad dressing

2. 1 ink 5. 1 coffee3. 1soft drink 6. 2 Chicken

noodle soup

More Review

Pure Water

Pure Water ?

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20

21 22 23 24 25 26 27 28 29 30

1. Homogeneous2. Heterogeneous3. Compound4. Element

Chocolate Ice Cream

Chocolate Ice Cream – Hetero or Homo?

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20

21 22 23 24 25 26 27 28 29 30

1. Neither, but it sure is good.

2. Heterogeneous3. Homogeneous4. Both

Vegetable Soup

Vegetable Soup: Hetero or Homo

1. Homogeneous2. Neither, I don’t like

soup.3. Heterogeneous4. Both

Tomato Soup

Tomato Soup: Hetero or Homo

1. Heterogeneous2. Neither, still don’t

like soup.3. Homogeneous4. Both

Salt (NaCl)

Table Salt: Element, Mixture, or Compound?

1. Element2. Mixture3. Compound4. None of the above5. All of the above

Banana Split

Banana Split: Hetero or Homo?

1. Homogeneous2. Neither, too

fattening.3. Heterogeneous4. Depends where you

buy it.

Pure Gold

Pure Gold: Element, Mixture, or Compound?

1. Element2. Mixture3. Compound4. All of the above

Mass is the measure of the amount of ____ in an object

1. Volume2. Matter3. Gravity4. weight

A compound is a substance that is made from the atoms of

1. Only one element2. Two elements only3. Two or more

elements

Extensive properties depend on the amount of matter present such as

1. Volume2. Mass3. Amount of energy

in a substance4. All of the above.

Intensive properties do not depend on the amount of matter present such as

1. Melting point and boiling point only

2. Volume3. Density4. Ability to conduct

electricity5. All but #2

Physical property can be observed such as

1. Density2. Odor3. Flammability4. rusting

A substance that does not involve a change in the identity of the substance

is called1. Chemical change2. Physical change

Phase changes are an example of

1. Physical change2. Chemical change

This state of matter has definite volume and definite shape.

1. Liquid2. Gas3. Solid4. plasma

This state of matter has the most energy.

1. Liquid2. Gas3. Solid4. plasma

This state of matter has definite volume but no definite shape.

1. Liquid2. Gas3. Solid4. plasma

How many different states can matter exist?

1. 32. 43. 504. Sometime but

rarely 5

This state of matter is found on the stars and in fluorescent light bulbs.

1. Liquid2. Gas3. Solid4. plasma

A mixture can be separated

1. Chemically2. physically

Mixtures that are uniform in composition are

1. Heterogeneous2. homogeneous

An example of an homogeneous mixture is

1. Chicken noodle soup

2. Lemonade3. Salt water solution4. Both #2 & #3

Granite is an example of what type of mixture?

1. Heterogeneous2. homogeneous

An example of a pure substance is

1. A salad2. Gold3. Blood4. Stainless steel