Q2 Science Practice checkpoint

Front

What happens to a lamp when the switch in an electrical circuit is opened?

Back

The lamp turns off.

Front

How can observations be categorized in a scientific investigation?

Back

Observations can be categorized based on their characteristics or changes observed.

Front

What is the energy transformation when a lamp is turned on?

Back

Electricity is transformed into Heat and Light.

Front

What is an irreversible change in cooking?

Back

The egg becomes white when it is heated.

Front

What does it mean if an object is harder than a copper penny?

Back

It means the object cannot be scratched by the penny.

Front

What is an electrical circuit?

Back

An electrical circuit is a closed loop that allows electricity to flow through components like a battery, lamp, and switch.

Front

What is the role of a switch in an electrical circuit?

Back

A switch controls the flow of electricity, allowing the circuit to be opened or closed.

Front

What are physical properties?

Back

Physical properties are characteristics of matter that can be observed or measured without changing the substance.

Front

What is an example of a reversible change?

Back

Melting ice is an example of a reversible change.

Front

What is an example of an irreversible change?

Back

Cooking an egg is an example of an irreversible change.