Chemical Change Presentation

Multiple Choice

______________ refers to the way most metals can be stretched into wires.

• Luster

• Ductile

• Malleable

• Metal

Multiple Choice

The way a metal’s surface reflects light is called ________________.

• dull

• luster

• solids

• metal

Multiple Choice

______________ refers to the way a metal can be hammered or rolled into thin sheets.

• Luster

• Malleable

• Metalloids

• Solid

Multiple Choice

Metals are found on the ______________ side of the periodic table.

• nonmetals

• left

• right

• metals

Multiple Choice

This group of elements have properties that are opposite those of metals. ______________________

• luster

• nonmetals

• metalloids

• metals

Multiple Choice

This group of elements sit along a stair step line on the periodic table and have properties of both metals and nonmetals. _________________________

• luster

• metals

• nonmetals

• metalloids

Multiple Choice

Copper is a common metal. Which of the following properties does this metal most likely have?

• High conductivity, high malleability, and low luster

• Low conductivity, low malleability, and low luster

• High conductivity, high malleability, and high luster

• Low conductivity, high malleability, and high luster

Multiple Choice

sharpening a pencil

• physical change

• physical property

• chemical change

• chemical property

Multiple Choice

 

Which group of things will maintain their physical properties when mixed together?

• copper wire, rubber ball and aluminum washer

• Lemon juice, water and sugar

Multiple Choice

As a liquid evaporates, what happens to the volume of the liquid?

• it increases

• it decreases

• it stays the same

Multiple Choice

A beaker contains a mixture of salt, sand, gravel, and iron filings. Which substance is soluble in water?

• salt

• sand

• iron filings

• gravel

Multiple Choice

A student stirs lemon juice and sugar into a glass of water. Why is this drink considered a solution?

• the lemon juice and sugar change the taste of the water

• the water changes color

• the lemon juice and sugar dissolve in the water

• the student stirs the mixture

Multiple Choice

______ is the amount of matter in an object.

• Mass

• Weight

• Volume

Multiple Choice

_______ have no particular shape or size. Sometimes they are stored in special tanks for divers or welders.

• Gases

• Solids

Multiple Choice

____________ is a measure of how closely packed an object's particles are. It also determines whether an object will sink or float.

• Density

• Volume

• Matter

• Liquid

Multiple Choice

____________ describes how well electricity can move through a material. Metals such as copper, gold, iron, and silver are good conductors of electricity.

• Electrical conductivity

• Thermal conductivity

• Thermal insulators

Multiple Choice

Burning Logs

• Physical Change
• Chemical Change

Multiple Choice

Which of these is a result of a chemical change?

• A mixture
• A solution
• A new substance
• Melting or freezing

Multiple Choice

Which is NOT evidence of a chemical change?

• Unexpected color change

• gas produced

• breaking

• temperature change (with no outside heat added)

Multiple Choice

Which is NOT evidence of a chemical change?

• Unexpected color change

• gas produced

• melting

• temperature change

Multiple Select

What key words, when present in a question about chemical reactions, might indicate a chemical change is occuring? Check all that apply.

• Bubbling

• Fizzing

• Dissolving

• Evaporating

Multiple Choice

Which of the following indicates a chemical change?

• Change in state of matter
• Temperature change
• Change in size 
• Change in shape

Multiple Choice

The formation of a solid when two liquids combine is called?

• Solidification

• Freezing

• Precipitate

• Solubility

Multiple Choice

Which of the following options provides evidence of a CHEMICAL change?

• Wood is burned releasing ash and smoke

• Rocks separate when soil is sifted

• Boiling water bubbles when heated

• Salt dissolves in water

Multiple Choice

Which of these indicates that a chemical change occured during an experiment?

• a solid formed when two liquids were mixed

• there was no temperature change during the experiment

• there was no change in mass during the experiment

• one substance was more dense than the other