Solids, Liquids and Gases

​https://www.youtube.com/watch?v=21CR01rlmv4

Multiple Choice

What happens to the particles in a solid?

• They are spread far apart and move freely.

• They are packed closely together and vibrate in place.

• They move quickly and change direction constantly.

• They fill the entire container they are in.

Multiple Choice

Why can’t the particles in a solid move freely?

• The forces between the particles are weak.

• The particles are too far apart to move.

• The forces between the particles are strong.

• The particles are only loosely packed.

Multiple Choice

Which of the following is NOT a property of solids?

• Always takes the shape of the container

• High density

• Hard to compress

• Definite shape

Multiple Choice

Why are solids difficult to compress?
A) Because their particles can move freely.
B) Because the particles are tightly packed together.
C) Because they have low density.
D) Because they can change shape easily.

• Because they can change shape easily.

• Because they have low density.

• Because their particles can move freely.

• Because the particles are tightly packed together.

Fill in the Blank

What is the process called when a solid turns directly into a gas?

Multiple Choice

Which of the following is an example of a solid transforming into a liquid?

• Ice melting into water

• Salt dissolving in water

• Steam condensing into water

• Water evaporating into vapor

Multiple Choice

How do the particles in a liquid behave?

• They are tightly packed and vibrate in place.

• They move freely and fill the entire container.

• They are far apart and move very quickly.

• They are fairly close together and move slightly.

Multiple Choice

What is one difference between a liquid and a solid?

• B) Liquids can easily be compressed, while solids cannot.
• A) Liquids have a definite shape, while solids do not.
• D) Liquids are less dense than solids.
• C) Liquids flow and take the shape of their container, while solids do not.

Multiple Choice

Which statement is true about liquids?

• Liquids can only exist in solid form.

• Liquids have a fixed volume but no shape.

• Liquids cannot flow or move.

• Liquids take the shape of the container they are in.

Multiple Choice

Why are liquids difficult to compress?

• Because the particles are in a fixed position.

• Because the particles are loosely arranged.

• Because the particles are highly attracted to each other.

• Because the particles flow and have little space between them.

Multiple Choice

What happens when a liquid absorbs heat and reaches its boiling point?

• It turns into a solid.

• It stays a liquid.

• It becomes more dense.

• It becomes a gas.

Multiple Choice

At what temperature does water boil?

• 100°C

• 25°C

• 100°F

• 0°C

Multiple Choice

How do the particles in a gas behave?

• They are tightly packed and vibrate in place.

• They are fairly close together and move slightly.

• They are stuck together and cannot move.

• They are far apart and move quickly in all directions.

Multiple Choice

Which statement is true about gases?

• Gases have a definite volume.

• Gases cannot be compressed at all.

• Gases take the shape of their container.

• Gases are solid at room temperature.

Multiple Choice

Why can gases be easily compressed?

• Because their particles are in a fixed position.
• Because their particles are heavy and dense.
• Because their particles are far apart.

• Because their particles are in a liquid state.

Multiple Choice

What is the density of gases like compared to solids and liquids?
A) Gases have a higher density than solids.
B) Gases have a higher density than liquids.
C) Gases have a lower density because there are fewer particles in a large space.
D) Gases have the same density as solids and liquids.

• Gases have a higher density than liquids.

• Gases have a higher density than solids.

• Gases have a lower density because there are fewer particles in a large space.

• Gases have the same density as solids and liquids.

Multiple Choice

What process turns a gas into a liquid?

• Evaporation
• Condensation

• Melting
• Ionization

Multiple Choice

What is an example of gas turning directly into a solid?

• Frost forming on a window

• Vapor condensing into liquid

• Ice sublimating

• Water freezing