Quiz on Mixtures and Solutions

What is a mixture?

• A combination of two or more substances that keep their identities

• A single substance that changes its identity

• A combination of substances that lose their identities

• A single substance that remains unchanged

Making a mixture is a _____________________?

• Chemical change

• Physical change

• Biological change

• Permanent change

What is a solution?

• A mixture with different compositions throughout

• A mixture that has the same composition throughout

• A single element

• A mixture that cannot be separated

What happens when a substance dissolves in another?

• It forms a new element

• It forms a solution

• It remains unchanged

• It becomes a solid

What does "dissolves" mean?

• Breaks into large pieces

• Breaks up into particles so tiny they can’t be seen even with a microscope

• Combines into a solid

• Changes color

Which of the following is an example of a solution?

• Laundry pile

• Fruit salad

• Salt water

• Sand and rocks

What property can be used to separate mixtures?

• filters

• magnets

• Density

• All of the above

What is the purpose of a sieve or mesh screen?

• To change the color of a substance

• To allow smaller matter to pass through while large matter stays above

• To combine substances

• To dissolve substances

What is an alloy?

• A single metal

• A mixture of metals

• A type of solution

• A type of gas

What is added to steel to make it shiny?

• Zinc

• Copper

• Chromium

• Iron