Grade 9 Alberta Science Unit B

Which is an example of a physical property?

• state

• colour

• luster

• all of the above

Which of the following is an example of an element?

• Water
• Carbon 
• Oil
• Carbon Dioxide 

Tags

NGSS.HS-PS1-1

Which of the following is an example of a mechanical mixture?

• Water
• cereal and milk 
• brass
• salt water 

An electron is:

• Neutral 
• Positively Charged 
• Electrostatic 
• Negatively Charged 

When the number of electrons and protons is the same, the atom will: 

• Have no charge
• A positive charge
• Explode
• A negative charge

Which are models of the Atom

• Plum Pudding Model

• Rasin Bun Model

• Bohrs Model

• All of the Above

State the type and number of atoms found in CO_2:

• 2 carbons and 2 oxygen
• 1 Carbon and 2 Oxygen
• 1 Nitrogen and 2 Oxygen
• 2 Carbon and 1 Oxygen

Tags

NGSS.MS-PS1-1

What is the chemical name of NO₂?

• Nitrogen dioxide 
• Dinitrogen dioxide
• Dinitrogen oxide 
• Dioxide nitrogen

Adding hydrochloric acid (HCl) to a magnesium ribbon strip is an example of what type of change?

• Physical Change 
• Chemical Change 
• No Change 
• Mechanical Change

An explosion is an example of a: 

• Chemical Change 
• Physical Change

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5