Unit 1: Intro, Matter & Change Part 2

Front

What is a chemical change?

Back

A chemical change is a process where substances combine or break apart to form new substances, often accompanied by energy changes. Example: Baking a cake.

Front

What is a physical property?

Back

A physical property is a characteristic of a substance that can be observed or measured without changing its identity. Examples include color, melting point, and density.

Front

What is a chemical property?

Back

A chemical property is a characteristic that can only be observed during a chemical reaction. Example: The ability of iron to rust.

Front

What is the definition of matter?

Back

Matter is anything that has mass and takes up space.

Front

What are the three states of matter?

Back

The three states of matter are solid, liquid, and gas.

Front

What is the difference between a solid and a liquid?

Back

A solid has a definite shape and volume, while a liquid has a definite volume but takes the shape of its container.

Front

What is the definition of a gas?

Back

A gas is a state of matter that has no definite shape or volume, expanding to fill its container.

Front

What is an example of a physical change?

Back

An example of a physical change is ripping paper or melting ice.

Front

How can you separate a mixture of sand and iron filings?

Back

You can use a bar magnet to separate iron filings from sand.

Front

What is the process of filtration?

Back

Filtration is a method used to separate solids from liquids or gases using a filter that allows only the fluid to pass through.