Briyana, Laila, and Saniyah Explore Chemical Reaction (MS-PS1-1)

In their science class, Briyana, Laila, and Saniyah are investigating a mystery involving two substances. They start by mixing vinegar (a liquid) with baking soda (a powder). Immediately, they notice bubbles forming and gas escaping. Using their teacher's guidance, they analyze the reaction and develop a model to show how the atoms in the reactants rearrange to form new products: carbon dioxide, water, and a salt.

• GOT IT!

• I don't get it.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

NGSS.MS-PS1-1

What does the formation of bubbles in the reaction indicate?

• A physical change has occurred.

• A chemical reaction is producing a gas.

• Atoms are disappearing.

• The temperature is decreasing.

Tags

NGSS.MS-PS1-2

Which best describes what happens to the atoms during this reaction?

• The atoms in the reactants rearrange to form new products.

• New atoms are created.

• The molecules are destroyed.

• The reactants stay the same.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

What is the gas being produced in this reaction?

• Oxygen

• Nitrogen

• Carbon dioxide

• Hydrogen

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Match each term to its correct description:

• Molecule

• The smallest unit of an element.

• Atom

• The starting substances in a chemical reaction.

• Reactants

• Two or more atoms bonded together.

• Products

• The substances formed after a chemical reaction.

Tags

NGSS.MS-PS1-2

Reorder the steps to describe how chemical reactions occur:

• Bonds between atoms in the reactants are broken.

• Reactants are mixed together.

• New bonds form to create products.

• Atoms rearrange into new combinations.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Complete the sentence: Atoms in a chemical reaction are (a)   .

• destroyed

• rearranged
• created

Tags

NGSS.MS-PS1-5

Complete the sentence: The bubbles in thereaction indicate that a ​ (a)   is being formed.

• solid

• gas
• liquid

Tags

NGSS.MS-PS1-2

Complete the sentence: The products of this reaction include water, carbon dioxide, and ​ (a)   .

• vinegar

• a salt
• oxygen

Tags

NGSS.MS-PS1-5

NGSS.MS-LS1-6

Explain why the formation of bubbles is evidence of a chemical reaction.

• Bubbles indicate a change in temperature.

• Bubbles show that a gas is being produced, which is a sign of a chemical change.

• Bubbles mean the reactants are dissolving.

• Bubbles are a sign of a physical change.

Tags

NGSS.MS-PS1-2