Properties of Matter Vocab and Concept Challenge

Properties of Matter Vocab and Concept Challenge

​Metal Alloys

​An alloy is a mixture of 2 or more metal elements

• ​Examples include:

• ​Bronze: copper and tin

• ​Stainless steel: iron, chromium, nickel

• ​Sterling silver: silver and copper

Multiple Choice

The alloy pewter is a mixture of 94% tin with the remaining 6% made up of copper and bismuth. Which metal is the solvent?

• tin

• copper

• bismuth

Multiple Select

Which of the following are examples of phase change...

• A chemical reaction gets hot

• Sublimation

• Melting

• A new substance is created

Multiple Choice

A substance that allows electricity and heat to pass through it readily could be described as......

• Malleable

• Ductile

• Conductive

• Transparent

Multiple Choice

If light cannot pass through a substance, it is said to be....

• Conductive

• Opaque

• Transparent

• Solid

Multiple Choice

If something breaks easily it is said to be

• Ductile

• Low density

• High density

• Brittle

Multiple Select

Which of the following are properties of something that is acidic?

• tastes sour

• corrodes metals

• it is slippery

• releases hydrogen ions

Chemical Reaction

-​a process in which one or more substances are converted to one or more different substances

​Combustion of methane (natural gas) is a chemical reaction.

HOW CAN WE TELL WHEN THERE IS A CHEMICAL REACTION?​

Multiple Choice

What tells us that a chemical reaction is happening in this photo?

• Temperature change

• Color change

• There isn't a chemical reaction

• Gas production

Multiple Select

Combustion is....

• The same as burning

• Always a chemical reaction

• Requires oxygen

• A phase change

Multiple Choice

When water boils, which of the following is happening?

• Phase change from liquid to gas

• A new substance (gas) is being produced

• The water is hot but nothing else is happening

• Phase change from gas to liquid

Multiple Select

Which of the following represent a physical change?

• Phase change

• Color change

• Dissolving

• Becoming magnetized

Multiple Choice

A phase change from solid to gas is called...

• Precipitation

• Condensation

• Deposition

• Sublimation

Multiple Select

Which of the following are signs of a chemical reaction?

(choose all that apply)

• Formation of a precipitate

• Light production

• Phase change

• Gas production

Multiple Select

A phase change is when....

• A new chemical substance is formed

• Matter converts between solid and liquid but does not change identity

• Matter coverts between liquid and gas but does not change identity

• Matter converts between gas and solid but does not change identity

Multiple Choice

What is the main sign of a chemical reaction that we can see in this photo?

• Color change

• Temperature change

• Melting

• Gas production