What two gases are created by passing electricity through water?

Two kids make a fire extinguisher by combining a liquid reactant and solid reactant to form a gaseous product. What is the gaseous product of this reaction?

Car and motorcycle engines combine gasoline with _____________ from the air to make small explosions.

What happens when Sodium, one of the elements in salt, comes in contact with water?

Alfred Nobel started the Nobel Prize after he invented what substance?

According to Bill, why are certain elements grouped together on the periodic table?

After the basketball game, Bill talks about a helpful chemical reaction that makes the icepack get cold. What type of reaction was this?

How many naturally occurring elements are there?

When sodium & chlorine combine, what do they form?

Working with fireworks is a mixture of art & chemistry. What do you call someone who makes fireworks?