5th grade - Physical Science - Lessons 1 -14 Review

Front

What are the three states of matter?

Back

Solid, Liquid, Gas.

Front

What is a solid?

Back

A state of matter with a definite shape and volume, where molecules are tightly packed.

Front

What is a liquid?

Back

A state of matter that takes the shape of its container and has a definite volume.

Front

What is a gas?

Back

A state of matter that has no definite shape or volume, with molecules that are far apart.

Front

What is a chemical change?

Back

A change that results in the formation of new chemical substances, often indicated by color change, temperature change, or emission of light.

Front

What is a physical change?

Back

A change that affects one or more physical properties of a substance without altering its chemical composition.

Front

What is solubility?

Back

The ability of a substance to dissolve in a solvent, such as sugar dissolving in water.

Front

What are signs of a chemical change?

Back

Color change, temperature change, production of gas, emission of light, and formation of a precipitate.

Front

What is the difference between a mixture and a compound?

Back

A mixture is a combination of two or more substances that retain their individual properties, while a compound is a substance formed when two or more elements chemically bond.

Front

What is density?

Back

The mass of a substance divided by its volume, often used to determine if an object will float or sink in a liquid.