Front

What is matter?

Back

Matter is anything that has mass and takes up space.

Front

What are physical properties of matter?

Back

Physical properties are characteristics that can be observed or measured without changing the substance, such as color, size, shape, and texture.

Front

What is an irreversible change?

Back

An irreversible change is a change that cannot be undone, meaning the original material cannot be restored.

Front

Can you give an example of an irreversible change?

Back

Toasting a piece of bread is an example of an irreversible change.

Front

What is a reversible change?

Back

A reversible change is a change that can be undone, allowing the original material to return to its initial state.

Front

Can you give an example of a reversible change?

Back

Melting ice into water is an example of a reversible change.

Front

How can we classify objects?

Back

We can classify objects based on their physical properties, such as size, shape, color, and texture.

Front

What happens when an ice cube melts?

Back

When an ice cube melts, it changes from solid to liquid, which is a reversible change.

Front

What is the process of boiling pasta?

Back

Boiling pasta is an irreversible change because the pasta changes its texture and cannot return to its original state.

Front

What is the importance of observing changes in matter?

Back

Observing changes in matter helps us understand how substances interact and transform.