OpenSciEd 7.1 - Lesson 4

Front

What indicates that a new gas was produced in a chemical reaction?

Back

A new gas is produced when two ingredients are mixed together in water, and no gas is produced when one ingredient is crushed by itself in a closed bag.

Tags

NGSS.MS-PS1-2

Front

In a chemical reaction, do the products have to contain atoms from the original substances?

Back

False. The product does not have to contain atoms from the original substance.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Front

What are molecules?

Back

Molecules are more than one atom combined.

Tags

NGSS.MS-PS1-1

Front

What common ingredient is found in homemade bath bomb recipes?

Back

Baking soda.

Front

What are the three states of matter?

Back

Solid, Liquid, Gas.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Front

What is a chemical reaction?

Back

A process where substances (reactants) are transformed into new substances (products) through the breaking and forming of chemical bonds.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Front

What is the difference between a physical change and a chemical change?

Back

A physical change alters the form of a substance but not its chemical composition, while a chemical change results in the formation of new substances.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Front

What is the law of conservation of mass?

Back

In a chemical reaction, mass is neither created nor destroyed; it is conserved.

Tags

NGSS.MS-PS1-5

Front

What role does baking soda play in a chemical reaction?

Back

Baking soda can act as a reactant that produces carbon dioxide gas when it reacts with an acid.

Tags

NGSS.MS-PS1-2

Front

What is an example of a physical change?

Back

Melting ice is an example of a physical change.

Tags

NGSS.MS-PS1-4