Professor Beaker's Learning Labs

Liquids and Solids Questions

List of Questions:

 

Question: What are the three states of matter?

Answer:
All matter on Earth exists in one of three states - solid, liquid or gas.

List of Questions

Question: What is a liquid?

Answer:
A liquid is any substance that has a definite volume, but a shape that changes easily. A liquid fills the shape of its container, but the liquid has a definite surface boundary.

List of Questions

Question: What is a solid?

Answer:
A solid is a substance that has a fixed volume and shape. A solid does not flow to assume the shape of its container.

List of Questions

Question: What is a gas?

Answer:
A gas is a substance that has no fixed volume or shape.  Gas expands to fill the shape and volume of its container.

Why does matter change state?

Answer:
The temperature determines the state of a substance.  When heated, a solid changes to a liquid, and a liquid to a gas. These changes of state take place because the molecules, or tiny bits of matter that make up the substance, vibrate faster when the substance is heated. When the molecules vibrate faster, the forces that hold the molecules together get weaker. When cooled, a gas changes to a liquid, and a liquid changes to a solid.

What are the states of water?

Answer:
The three states of water are: solid, liquid, and gas. When its temperature drops below 0 C, water turns to ice.  Between 0 C and 100 C, water exists are a liquid.  Above 100 C, water changes to a gas called steam.

What is a solution?

Answer:
A solution is a mixture of one substance dissolved in another  Sugar dissolves in water to make a sugar-water solution.

What is a colloid?

Answer:
A colloid consists of tiny particles of matter that are dispersed evenly throughout a gas, liquid, or solid. If left to stand, the tiny particles of matter will not settle out of the gas, liquid, or solid.

What is an element?

Answer:
An element is a substance made of just one type of atom. Gold is an element. A solid piece of gold is made only of gold atoms.

List of Questions



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This page last updated on: October 28, 2000
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