Chemical Materials Quiz for Grade 2

What happens when you mix baking soda and vinegar?

• Produces carbon dioxide gas, water, and a salt

• Creates a sticky substance

• Causes an explosion

• Produces oxygen gas and water

What is the main ingredient in salt?

• Sodium chloride

• Calcium chloride

• Magnesium chloride

• Potassium chloride

What happens to an iron nail when it is left outside in the rain?

• It will rust

• It will shrink in size

• It will turn into gold

• It will become magnetic

What do you get when you burn wood?

• Chocolate and candy

• Rainbows and unicorns

• Diamonds and gold

• Ash and smoke

What is the color of rust?

• Reddish-brown

• Yellow

• Blue

• Green

What do you get when you mix flour, water, and yeast and let it sit for a while?

• Pizza sauce

• Pancake batter

• Pasta dough

• Bread dough

What happens when you heat butter in a pan?

• It turns into a solid

• It changes color to blue

• It melts and turns into a liquid

• It evaporates into thin air

What do you get when you mix lemon juice and baking soda?

• Carbon monoxide and vinegar

• Oxygen gas and sugar

• Hydrogen gas and salt

• Carbon dioxide gas, water, and sodium citrate

What happens when you mix oil and water?

• They turn into a solid mass

• They evaporate into the air

• They create a chemical reaction

• They separate into two distinct layers.

What do you get when you mix sugar and water and heat it?

• Carbonated water

• Salty solution

• Sugar solution

• Oil and water mixture