SEEd 5.2 5th Grade Science Review 5. Quiz

What is matter?

Answer explanation

Matter is anything that has mass and occupies space. It includes solids, liquids, and gases, and is made up of atoms and molecules.

List the three states of matter.

Answer explanation

The three states of matter are solid, liquid, and gas. Solids have a fixed shape, liquids take the shape of their container, and gases fill the entire space available. These states differ in particle arrangement and energy.

Which state of matter has a definite shape and volume?

• Solid

• Liquid

• Gas

Answer explanation

A solid has a definite shape and volume, meaning it maintains its form and does not change unless acted upon by an external force. In contrast, liquids take the shape of their container, and gases have neither definite shape nor volume.

Which state of matter takes the shape of its container but has a definite volume?

• Solid

• Liquid

• Gas

Answer explanation

A liquid takes the shape of its container while maintaining a definite volume. Unlike gases, which expand to fill their container, liquids have a fixed volume that does not change.

Which state of matter takes both the shape and volume of its container?

• Solid

• Liquid

• Gas

Answer explanation

Gas takes both the shape and volume of its container, expanding to fill the available space. In contrast, solids have a fixed shape and volume, while liquids have a fixed volume but take the shape of their container.

Give an example of each state of matter.

• desk

• Solid

• water

• Gas

• helium

• Liquid

True or False: Matter can be created or destroyed.

• True

• False

Answer explanation

The statement is False because according to the law of conservation of mass, matter cannot be created or destroyed, only transformed from one form to another.

What happens to the shape of a liquid when it is poured into a new container?

Answer explanation

When a liquid is poured into a new container, it takes the shape of that container. This is because liquids have no fixed shape and conform to the boundaries of their surroundings.

How is gas different from a solid and a liquid?

Answer explanation

Gas differs from solids and liquids in that it has no fixed shape or volume. Gas particles are far apart and move freely, while solids have a definite shape and volume, and liquids have a definite volume but take the shape of their container.

Give two examples of gases found in our environment.

• Oxygen

• bathrooms

• Nitrogen

• ironoxide

Answer explanation

Two common gases in our environment are oxygen (O2), essential for respiration, and carbon dioxide (CO2), produced by respiration and combustion. Both play crucial roles in ecological balance.