Modeling Matter Unit Review

Front

What is matter?

Back

Matter is anything that has mass and takes up space.

Front

What are molecules?

Back

Molecules are groups of two or more atoms bonded together.

Front

What is a mixture?

Back

A mixture is a combination of two or more substances that retain their individual properties.

Front

What is a solution?

Back

A solution is a type of mixture where one substance is dissolved in another.

Front

What are the properties of a substance?

Back

Properties of a substance are characteristics that can be observed or measured, such as color, mass, volume, and density.

Front

What is density?

Back

Density is the mass of a substance divided by its volume.

Front

How do temperature changes affect molecules?

Back

As temperature increases, molecules move faster; as temperature decreases, molecules move slower.

Front

What is buoyancy?

Back

Buoyancy is the ability of an object to float in a fluid due to the upward force exerted by the fluid.

Front

What is the role of hot air in a hot-air balloon?

Back

Hot air is less dense than cold air, allowing the balloon to rise.

Front

What is an observation in science?

Back

An observation is the act of noting and recording something using the senses.