chemical reactions

Who were the alchemists?

• Cowboys

• scientists who studied plants

• scientists who studied mixing together chemicals

• scientists who studied the ocean

What is a chemical reaction?

• when matter goes through chemical changes

• when a chemical explodes

• when a chemical dissolves

• chemicals collect together

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

NGSS.MS-PS1-1

Which of the following are signs of a chemical reaction?

• color change

• formation of a gas

• release of energy

• bubbling/fizzing

Tags

NGSS.MS-PS1-2

Which of the following is an acid?

• nutella

• milk

• glue

• vinegar

When you fill a ziplock with vinegar and baking soda, why does the bag expand?

• It fills with bubbles.

• The two substances react and fill the bag with gas.

• The substances react and make slime.

• The substances react and create a new substance which expands and fills the bag.

Tags

NGSS.MS-PS1-2

What is a solution?

• a mixture

• a combo

• a creation

• a mixture whose parts cannot be separated.

What is a reactant?

• new product created in a chemical reaction

• starting substance in a chemical reaction

• fire

• a flame

What is a product?

• new substance created in a chemical reaction

• starting substance in a chemical reaction

• a flame

• a fire

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

What are the properties of of acids?

• sour

• dissolves

• fizzes with other substances

• they are yellow

Why were the alchemists important?

• They created many new dances that people enjoy.

• Their experiments led to many discoveries that we use today.

• They created many new recipes that we enjoy eating.

• They created many new hairstyles that people like to use on their hair.

Tags

NGSS.MS-PS1-3