Phase Changes of Matter Lesson 04 Review

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What is a phase change?

A chemical change that alters the composition of a substance

A change from one state of matter to another (correct)

A reaction caused by exposure to sunlight

A transformation involving only gases

What happens to the particles during a phase change?

They completely change their chemical makeup

They cease all movement temporarily

They become more tightly packed together

They move more freely and have a weaker attraction in comparison to a solid (correct)

What is the result of heat energy being absorbed during a phase change?

Particles completely stop moving

Particles speed up and expand (correct)

Particles slow down and move closer together

Particles transform into a gas

Which phase change involves molecules slowing down, moving closer together, and releasing heat energy?

Freezing Signup and view all the answers

How do liquids differ from solids in terms of particle arrangement?

Solids have particles that are more closely packed together Signup and view all the answers

Which type of change only affects the physical appearance of a substance?

Phase change Signup and view all the answers

What is the length of a day on the Sun?

59 earth days Signup and view all the answers

What is the primary composition of the Sun?

74% hydrogen Signup and view all the answers

What is the diameter of Mercury, the Sun's closest neighbor?

4,880 kilometers Signup and view all the answers

Which planet is known as the 'heart of the solar system'?

Sun Signup and view all the answers

What is the distance between Earth and the Sun?

149.6 million kilometers Signup and view all the answers

What is the mass of the Sun?

$1,989 x 10^{30}$ kilograms Signup and view all the answers

What is the term used to describe meteoroids entering the Earth's atmosphere and burning up?

Fireballs Signup and view all the answers

Which state of matter has particles that are tightly packed together and have a definite shape and volume?

Solid Signup and view all the answers

What is the term for Near Earth Objects that have mass and enter the Earth's atmosphere at high speed?

Meteoroids Signup and view all the answers

In which state of matter are particles widely spaced apart, allowing them to move freely and randomly?

Gas Signup and view all the answers

What is the term for when a solid turns directly into a gas without passing through the liquid phase?

Sublimation Signup and view all the answers

Which celestial body is known for having a strong attraction to comets and asteroids?

Earth Signup and view all the answers