Quiz on Changes of State

Olivia is making a delicious chocolate dessert. She places a solid chocolate bar in a bowl and heats it gently. What is the process called when the solid chocolate changes into a liquid?

• Condensation

• Melting

• Freezing

• Evaporation

During a hot summer day, Zoe notices that the ice in her drink is melting. As the ice changes from solid to liquid, the particles gain energy and move further apart. During which phase change do particles gain energy and move further apart?

• Freezing

• Melting

• Condensation

• Sublimation

Ava is boiling water in a kettle. As the water heats up and starts to turn into steam, what happens to the energy of the water particles?

• Energy decreases

• Energy remains the same

• Energy increases

• Energy is lost to the environment

Imagine a balloon filled with air. Which of the following describes the arrangement of particles in the gas inside the balloon?

• Tightly packed and vibrating

• Close together and sliding past each other

• Far apart and moving freely

• Fixed in place and orderly

On a chilly evening, Mia noticed that the windows of her house were fogging up. She remembered her science class where they discussed how this happens. What is the term for the process of a gas turning into a liquid?

• Evaporation

• Sublimation

• Condensation

• Melting

During a hot summer day, Elijah noticed that the ice cubes in his drink were disappearing without turning into water first. Curious about this phenomenon, he asked his friends, "When ice (solid) changes directly to water vapor (gas), what is this process called?"

• Melting

• Freezing

• Sublimation

• Condensation

Imagine a crowded dance floor at a party. How does the movement of people on the dance floor differ from that of people in a more spacious lounge area?

• People on the dance floor are free to move, while in the lounge they are not.

• People on the dance floor sway in place, while in the lounge they move around freely.

• People on the dance floor are far apart, while in the lounge they are close together.

• People on the dance floor have high energy, while in the lounge they have low energy.

During a cold winter night, Zoe observes a pond that is starting to freeze. She remembers learning that as water freezes, the energy of the particles decreases. Evaluate Zoe's statement: "During freezing, the energy of the particles decreases." Is this statement true or false?

• True

• False

• Partially true

• Depends on the substance

David is conducting an experiment to demonstrate the changes of state in different materials. He wants to focus on two specific states to illustrate how energy is lost during the transition. Which two states should he choose to show this energy loss?

• Solid to Liquid

• Liquid to Gas

• Gas to Liquid

• Solid to Gas

Imagine Anika is observing the weather as the temperature drops in the evening. She notices that the water vapor in the air begins to condense into tiny droplets on her window. What happens to the energy during this process?

• Energy is absorbed by the water vapor.

• Energy is released into the environment.

• Energy remains constant.

• Energy is converted into heat.