Minerals in rocks are compounds, but the minerals form together as mixtures.

Pure water is a compound, but saltwater is a solution.

Mixtures can contain both elements and compounds.

This glass is half full.

If an ice cube is melted, what type of change has taken place?

What kind of change is happening to the iron chain on the left?

Some metals react with what?

What is the smaller particle in an atom?

Metals are often found in compound form in rocks called______?

Which of these is not a nonmetal?

An element, like arsenic, has properties that are like both metals and nonmetals which is why they are called

What do you need to separate the elements found in a compound?

Which three elements combine to form sugar?

Which of these is not a compound?

Which one does not fit?

Chemical bonds form what?

An atom that gains or loses an electron is called an...

Chemical formulas represent what?

Which of these is not a compound?

People get water from the foods they eat.

Acids can be found in many of the foods we eat.

What type of acid is found in our stomachs that helps to break down the food we eat?

These antacids are used to react with acids in our stomach. What are they?

What forms when an acid reacts with a base?

Which animals can digest cellulose?

Mixtures can be separated physically.

Toothpaste is a mixture because you can see or taste the differences between the type of toothpaste.

About how much dissolved salt is in the ocean?

Which of these can be preserved with salt?

You can dissolve water in salt.

What gas is dissolved in Coca-Cola?

How do you separate a solution of sugar water?

What is blood?

To separate a suspension, it is best to use what?

Which of these is not a colloid, a mixture with particles too small to be seen.

What type of mixture is jelly?

Amalgam is mixture of metals used to fill cavities and contains what dangerous element?

Steel is an alloy that is made mostly of what element?

Gold is mixed with what element to give it strength for making jewelry?