L2 What is a fluid?

A fluid is anything that _________ .

Which states of matter can be a fluid?

• Solid

• Liquid

• Gas

Any substance that can be poured is a fluid.

• True

• False

Fluids are able to flow because...

• particles are held in fixed positions
• fluids are solid
• particles don't exist in fluids

• particles move past one another

According to the particle theory, gases and liquids are fluids because

• Their particles are far apart

• Their particles are close together

• Their particles have a weak force of attraction

• Their particles have a strong force of attraction

• Their particles have no force of attraction

According to the particle theory, solids are not fluids because

• Solids have particles that are loosely packed and can flow easily
• Solids have particles that are not affected by gravity
• Solids have particles that are constantly changing shape
• Solids have particles that are tightly packed together and vibrate in fixed positions

When enough ___ is applied to a solid, it can change states to become a liquid or a gas.

List 5 fluids found in the image.