Module 1: Properties of Materials

Front

What is a chemical reaction?

Back

A process where substances (reactants) change into different substances (products) with new properties.

Front

What is density?

Back

Density is the mass of a substance divided by its volume, often expressed in grams per cubic centimeter (g/cm³).

Front

What are physical properties?

Back

Characteristics of a substance that can be observed or measured without changing its identity, such as color, shape, and state.

Front

What is the difference between solids, liquids, and gases?

Back

Solids have a definite shape and volume, liquids have a definite volume but take the shape of their container, and gases have neither a definite shape nor volume.

Front

What is an example of a non-metal?

Back

Examples of non-metals include oxygen, sulfur, and carbon.

Front

What happens when baking soda reacts with vinegar?

Back

It produces carbon dioxide gas, which causes bubbling.

Front

What is the state of matter?

Back

The physical form in which a substance exists, commonly as solid, liquid, or gas.

Front

What is an observation in science?

Back

An observation is information gathered using the senses or scientific instruments.

Front

What is the significance of mass in physical properties?

Back

Mass is a measure of the amount of matter in an object and is important for understanding density and weight.

Front

What is a mixture?

Back

A combination of two or more substances that retain their individual properties and can be separated by physical means.