Open Sci Ed

Explain the difference between a chemical change and a physical change.

• A chemical change does not create new substances, while a physical change results in the formation of new substances with different properties

• A chemical change results in the formation of new substances with different properties, while a physical change does not create new substances and only alters the state or appearance of the matter.

• A chemical change alters the state of matter, while a physical change creates new substances with different properties

• A chemical change only affects the appearance of matter, while a physical change results in the formation of new substances

Tags

NGSS.MS-PS1-2

How does temperature affect the rate of a chemical change?

• Temperature has no effect on the rate of a chemical change.

• Temperature decreases the rate of a chemical change.

• Temperature only affects the color of a chemical change.

• Temperature increases the rate of a chemical change.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

What is the law of conservation of energy and how does it apply to different energy transformations?

• Energy can be transformed into matter

• Energy cannot be created or destroyed, only transformed from one form to another.

• Energy can only be transformed into heat

• Energy can be created and destroyed at will

Tags

NGSS.MS-PS3-4

NGSS.MS-PS3-5

What is a chemical change? Provide an example.

• Boiling water

• Burning of wood

• Mixing salt and water

• Cutting paper

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

What are the reactants in this chemical equation?

• villi and alveoli

• water and energy

• glucose and oxygen

• blood and cells

Tags

NGSS.MS-LS1-6

What are the products in this chemical equation?

• villi and alveoli

• water, carbon dioxide, and energy

• glucose and oxygen

• blood and cells

Tags

NGSS.MS-LS1-6

Give an example of a physical change.

• Melting of ice

• Boiling water

• Burning of wood

• Mixing salt and water

Tags

NGSS.MS-PS1-4

What are the three states of matter and how do they change from one to another?

• Solid, liquid, plasma

• Solid, liquid, and gas

• Hard, soft, squishy

• Hot, warm, cold

Tags

NGSS.MS-PS1-4

Explain the concept of energy transfer with an example.

• Energy transfer is not a real scientific concept

• When a ball is thrown, the kinetic energy of the ball is transferred to the person's arm

• When a ball is thrown in the air, the kinetic energy of the person's arm is transferred to the ball, causing it to move.

• Energy transfer only occurs in living organisms

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-4

NGSS.MS-PS3-5

How is energy transferred in a conduction process?

• By the movement of fluid particles

• Via the transfer of electric charge

• Through electromagnetic waves

• Direct contact between particles

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-5