GA Milestones Physical Science

8th Grade Physical Science Ga Milestone Review (Structure and Properties of Matter)

By Sierra Lawhorne

Multiple Choice

What is the smallest particle of the element iron (Fe) that can still be classified as iron?

• an electron

• a compound

• an atom

• homogenous

Multiple Select

Oxygen and Hydrogen combine to form water. In the space to the right, draw an illustration of a water molecule. Additionally, identify water as any of the following that apply: an atom, an element, a molecule, and/or a compound. Explain your answer. 

• an atom

• an element

• a molecule

• a compound

Draw the water molecule for the appropriate questions in your study guide

Subject | Subject

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Multiple Choice

Which of the following does not belong: Air, Salt, Water, or Oxygen

• Air

• Salt

• Water

• Oxygen

Multiple Choice

Identify the following as either a pure substance (PS) or mixture (M): Carbon Dioxide (CO2)

• PS

• M

Multiple Choice

Identify the following as either a pure substance (PS) or mixture (M): Water (H2O)

• PS

• M

Multiple Choice

Identify the following as either a pure substance (PS) or mixture (M): Saltwater

• PS

• M

Multiple Choice

Identify the following as either a pure substance (PS) or mixture (M): Oxygen Gas

• PS

• M

Multiple Choice

Identify the following as either a pure substance (PS) or mixture (M): Zinc

• PS

• M

Multiple Choice

Identify the following as either a pure substance (PS) or mixture (M): a blueberry muffin

• PS

• M

Multiple Choice

Identify the following as either a pure substance (PS) or mixture (M): an alloy of iron and carbon

• PS

• M

Multiple Choice

Identify the following as either a pure substance (PS) or mixture (M): Carbon

• PS

• M

Multiple Choice

Identify the following as either a pure substance (PS) or mixture (M): Air

• PS

• M

Multiple Choice

Identify the following as either a pure substance (PS) or mixture (M): NaCl

• PS

• M

Multiple Choice

Identify the following as either a pure substance (PS) or mixture (M): Ammonia (NH3)

• PS

• M

Multiple Choice

Identify the picture as a Pure Substance (PS) or a Mixture (M).

• PS; homogeneous

• M; heterogeneous

• PS; element

• PS; compound

Multiple Choice

Identify the picture as a Pure Substance (PS) or a Mixture (M).

• PS

• M; mixture of elements

• M; of compounds

• M; compounds and elements

Multiple Choice

Identify the picture as a Pure Substance (PS) or a Mixture (M).

• PS; element

• M; element

• M; compound

• PS; compound

Multiple Choice

Identify the picture as a Pure Substance (PS) or a Mixture (M).

• PS; element

• M; mixture of elements

• M; mixture of compounds

• M; mixture of elements and compounds

What is mixture?

​What is a pure substance?

Pure Substance vs. Mixture

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​A substance made of only ONE kind of particle. Elements and compounds are pure substances.

​ Two or more pure substances PHYSICALLY combined

​How can you tell the difference between a PS and a M?

A mixture can be physically separated. A pure substance can not. A mixture has two or more kinds of particles. Only elements and compounds are pure substances.

Multiple Select

The diagram shows three containers of gas. Which container(s) has atoms?

• Container R

• Container S

• Container T

• None

Multiple Select

The diagram shows three containers of gas. Which container(s) has an element?

• Container R

• Container S

• Container T

• None

Multiple Select

The diagram shows three containers of gas. Which container(s) has a pure substance?

• Container R

• Container S

• Container T

• None

Multiple Select

The diagram shows three containers of gas. Which container(s) has a molecule?

• Container R

• Container S

• Container T

• None

Multiple Select

The diagram shows three containers of gas. Which container(s) has molecules only?

• Container R

• Container S

• Container T

• None

Multiple Select

The diagram shows three containers of gas. Which container(s) has a mixture?

• Container R

• Container S

• Container T

• None

Multiple Select

The diagram shows three containers of gas. Which container(s) is a compound only?

• Container R

• Container S

• Container T

• None

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​Write the states of matter in sequence based on loss of energy (example: state of matter with the most energy, then the state of matter with less energy than the first and so on)

Multiple Choice

Samantha cools 100g of gaseous Nitrogen (N2) until it becomes liquid and then cools it even more until it becomes a solid. Explain what happens to the energy of the molecules as the temperature is lowered.

• As the temperature is lowered the energy of the molecules decreases.

• As the temperature is lowered the energy of the molecules increases.

• As the temperature is lowered the energy of the molecules stay the same.

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​Draw a diagram below that shows the molecular change of ice to water, to water vapor and indicate using arrows where thermal energy is added or removed. Then describe how the particles behave as thermal energy is added or removed and the process that takes place.

​As thermal energy is added the particles increase in velocity (speed and direction). The ice melts and more thermal energy causes liquid water to change into water vapor through the process of boiling/vaporization. As thermal energy is removed, the particles decrease in velocity and the water vapor changes into liquid water through the process of condensation and the removal of thermal energy causes water to change into ice through the process of freezing.

Describe the relationship between temperature, thermal energy, and the arrangement of the particles in the states of matter.

As temperature increases, thermal energy increases and the particles increase in velocity (speed and direction). As temperature decreases, thermal energy decreases and the particles decrease in velocity.

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Multiple Choice

Is the property P (physical) or C (chemical): Boiling Point

• P

• C

Multiple Choice

Is the property P (physical) or C (chemical): Melting Point

• P

• C

Multiple Choice

Is the property P (physical) or C (chemical): Conductivity

• P

• C

Multiple Choice

Is the property P (physical) or C (chemical): Density

• P

• C

Multiple Choice

Is the property P (physical) or C (chemical): Reactivity

• P

• C

Multiple Choice

Is the property P (physical) or C (chemical): Flammability

• P

• C

Multiple Choice

Is the property P (physical) or C (chemical): Malleability

• P

• C

Multiple Choice

Is the property P (physical) or C (chemical): Combustibility

• P

• C

Multiple Choice

Is the property P (physical) or C (chemical): Mass

• P

• C

Multiple Choice

Is the property P (physical) or C (chemical): Ability to rust

• P

• C

Multiple Choice

Is the property P (physical) or C (chemical): Solubility

• P

• C

Multiple Choice

Is the property P (physical) or C (chemical): Volume

• P

• C

Multiple Choice

1 kg of silver melts at 960.8 degrees Celsius. What does 500g of silver melts at _________.

• 900 degrees Celsius

• 960.8 degrees Celsius

• 500 degrees Celsius

• none of the choices are correct

Multiple Choice

1 kg of silver melts at 960.8 degrees Celsius. What is the freezing point of s_________.

• 900 degrees Celsius

• 960.8 degrees Celsius

• 500 degrees Celsius

• none of the choices are correct

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​A match is an example of a chemical change because there is a color change and heat and light are given off. The ice melting is an example of a physical change because a new substance is not formed, the ice simply changes shape and form. The pot of water boiling and evaporating is an example of a physical change because the identity of the matter stays the same; it only changed in form. The floating ball of clay is an example of a physical change because the clay stayed the same. Its shape and form changed, but a new substance is not formed.

​Evidence that suggests a chemical change has occurred instead of a physical change.

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​There is the formation of a precipitate (solid) which indicates a chemical change.

​The diagram below illustrate a chemical change. Explain why this is a chemical change.

​

Multiple Choice

What are protons and where are they found?

• positive charged particles in the nucleus

• positive charged particles on the electron cloud

• negative charged particle in the the nucleus

• negative charged particle on the electron cloud

Multiple Choice

What are neutrons and where are they found?

• positive charged particles in the nucleus

• positive charged particles on the electron cloud

• neutral particle in the the nucleus

• negative charged particle on the electron cloud

Multiple Choice

What are neutrons and where are they found?

• positive charged particles in the nucleus

• positive charged particles on the electron cloud

• neutral particle in the the nucleus

• negative charged particle on the electron cloud

Multiple Choice

What is the atomic number?

• the number of protons
• the number of protons and neutrons
• the number of neutrons
• the number of protons and electrons

Multiple Choice

What is the atomic mass?

• the number of protons
• the number of protons and neutrons
• the number of neutrons
• the number of protons and electrons

Use the link on the next slide to the periodic table to complete the chart of finding the name, atomic number, atomic mass, protons, neutrons, and electrons.

Remember the 2-8-8 rule for Bohr Model:

1st level: 2 up to 2 electrons

2nd level: up tp 8 electrons

3rd level: up to 8 electrons ​

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Home

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​https://ptable.com/?lang=en#Properties

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​https://www.wlwv.k12.or.us/cms/lib/OR01001812/Centricity/Domain/1338/NOTES%20-%206.1-6.3_Periodic%20Table_Trends_slideshow_2017.pdf

Multiple Choice

Which of the following labels are correct for A. in the equation to the left?

• subscript

• coefficient

• product

• reactants

Multiple Choice

Which of the following labels are correct for B. in the equation to the left?

• subscript

• coefficient

• product

• reactants

Multiple Choice

Which of the following labels are correct for C. in the equation to the left?

• yields

• coefficient

• product

• reactants

Multiple Choice

Which of the following labels are correct for D. in the equation to the left?

• yields

• coefficient

• product

• reactants

Multiple Choice

Which of the following labels are correct for E. in the equation to the left?

• subscript

• coefficient

• product

• reactants

Multiple Choice

How much of FeS is produced in the reaction to the left?

• 56g

• 88g

• 89g

• none, the matter disappeared.

Multiple Choice

The Law of Conservation of matter states that the total amount of matter ______________ after it undergoes change.

• disappears
• stays the same
• weighs less
• explodes

Multiple Choice

Which sampled equation to the left best illustrates the law of conservation of mass?

• A

• B

• C

• D

Fill in the Blanks

Fill in the Blanks

Multiple Choice

Balance this equation _N₂ + _H₂ --> _NH₃

_{*Complete the other two equations on your own and check with me for the answer during class.}

• 1,2,3
• 1,3,2
• 1,1,2
• 2,1,1

Multiple Choice

An iron bar had a beginning mass of 150 grams. As the bar rusted, its mass increased. Explain why the mass of the iron bar increased.

• The mass of the bar changed, when the iron reacted with the oxygen in the air the mass of the oxygen causes the mass overall to increase.

• The mass of the bar stayed the same, but when the iron reacted with the oxygen in the air the mass of th oxygen causes the mass overall to decreased.

• The mass of the bar stayed the same, but when the iron reacted with the oxygen in the air the mass of th oxygen causes the mass overall to increase.