Evidence of chemical reactions

a copper penny turning greenish after a few years.

• Chemical Change
• Physical Change

Tags

NGSS.MS-PS1-2

Example of a chemical reaction:

paper burning

• True

• False

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Which word means: The smallest part of a chemical that can exist. It is made up of atoms?

• data

• matter

• molecule

• claim

Tags

NGSS.MS-PS1-1

What is the general term for any new substance that is formed from a chemical reaction?

• precipitate

• product

• solute

• solvent

Tags

NGSS.MS-PS1-2

Which of the following is a chemical change?

• You melt butter.

• You bake a cake.

• You blow up a balloon.

• you draw on a piece of paper.

Tags

NGSS.MS-PS1-2

Photosynthesis is a __________ reaction because it uses the Sun's Energy, carbon dioxide and water (the reactants) to make sugar and oxygen (the products).

• Physical Reaction

• Chemical Reaction

• Neither

Tags

NGSS.MS-PS1-2

NGSS.MS-LS1-6

NGSS.MS-LS1-7

What is the term that describes a process where substances react to form a new substance called?

• Reactant

• Product

• Chemical Reaction

• Physical reaction

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

What is the term that refers to the substances that exist before a chemical reaction occurs.

• Product

• Reactant

• Chemical Reaction

• Physical Reactant

Tags

NGSS.MS-PS1-2

What is the term that refers to the new substance that is formed as a result of a chemical reaction.

• Reactant

• Product

• Chemical Reaction

• Physical Reaction

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

When heat is applied to sugar it turns brown (changes color) and has a different taste. This is an example of what type of reaction?

• Chemical Reaction

• Physical Reaction

• Change of State

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4