L. 1.6 Amplify: Modeling the Molecular Scale

A gas does not have a visible shape because its molecules ______.

• A) move in place

• B) move around each other

• C) move away from each other

• D) have no movement.

What happens when water turns into ice?

• When molecules stop moving

• When molecules experience a change to their freedom of movement

• When molecules become visible

• When molecules disappear.

Imagine Henry is watching ice melt into water. What happens to the molecules during this phase change?

• They stop moving

• They experience a change to their freedom of movement

• They become visible

• They disappear

Lily is learning about chemistry in her science class. She wants to know what the vocabulary term is for the smallest unit of a chemical element. Can you help her?

• Atom

• Molecule

• Phase

• Particle

Imagine a group of students, including Grace, Rohan, and Maya, standing very close together at a concert, barely moving. Which phase of matter does this scenario represent?

• Solids

• Liquids

• Gases

Which phase of matter can be represented by a dance with expansive and free movements?

• Solids

• Liquids

• Gases

Fill in the blank: Gases have a ______ shape and volume.

• fixed

• variable

• changing

Henry and Maya are observing a block of ice and a glass of water. Fill in the blank: Solids like the ice have ______ molecular movement compared to liquids like the water.

• more

• less

• the same

Which video would most likely show the process of liquid turning into gas?

• Condensation on a Cup

• Evaporating Mud Puddle

• Melting Ice Pop Timelapse

• Ice Forming on Tree Branches

What should you do if the lake evaporated in the Phase Change activity?

• Show how the methane would be different in 2007 compared to 2009

• Measure the temperature

• Calculate the volume

• Analyze the chemical composition