Exploring Chemical Changes

What is the essential question discussed in the video?

• What are the types of molecules?

• When do we create something completely new?

• How do physical changes occur?

• How do we measure temperature changes?

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Which of the following is NOT an example of a physical change?

• Change in texture

• Formation of a new substance

• Change in temperature

• Change in color

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

What is a chemical reaction?

• A process that only changes the state of matter

• A process where one or more substances are changed into new substances

• A process that only changes the temperature

• A process where molecules remain the same

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Which of the following is an indicator of a chemical change?

• Formation of a precipitate

• Change in shape

• Change in state of matter

• Change in size

Tags

NGSS.MS-PS1-2

What causes fizzing or bubbles in a chemical reaction?

• Change in color

• Change in temperature

• Formation of a solid

• Release of gas

Tags

NGSS.MS-PS1-2

Which of the following is an example of a chemical reaction causing a change in odor?

• Mixing mentos and soda

• Baking a cake

• Painting a car

• Melting ice

Tags

NGSS.MS-PS1-2

What happens when you mix baking soda and vinegar?

• You get a change in shape

• You get water, salt, and CO2

• You get a change in color

• You get a change in texture

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Which metals are very reactive in water?

• Alkali metals

• Halogens

• Noble gases

• Transition metals

What is a precipitate?

• A gas released during a reaction

• A solid that forms out of a solution

• A change in temperature

• A change in color

Tags

NGSS.MS-PS1-2

What caused the Statue of Liberty to change color?

• It was exposed to high temperatures

• It was cleaned with chemicals

• It was covered in a thin layer of copper which reacted with oxygen

• It was repainted

Tags

NGSS.MS-PS1-2