changes to matter scope

Front

What is the mass of an object?

Back

The mass of an object is the amount of matter it contains, usually measured in grams or kilograms.

Front

What happens to the mass of an object when it changes states (solid, liquid, gas)?

Back

The mass of an object remains the same when it changes states.

Front

What is weight?

Back

Weight is the heaviness of an object, which is the force of gravity acting on its mass.

Front

What occurs to particles when a substance is heated?

Back

When a substance is heated, the particles speed up and move more freely.

Front

What is the definition of temperature?

Back

Temperature is a measure of how hot or cold something is, often measured in degrees Celsius or Fahrenheit.

Front

What is the difference between mass and weight?

Back

Mass is the amount of matter in an object, while weight is the force of gravity acting on that mass.

Front

What happens to the mass of water when ice melts?

Back

The mass of water remains the same when ice melts; it is the same as the mass of the ice plus the water.

Front

What is a physical change?

Back

A physical change is a change in the form or appearance of a substance without changing its chemical composition.

Front

What is a chemical change?

Back

A chemical change is a change that results in the formation of new chemical substances.

Front

What is an example of a physical change?

Back

Melting ice is an example of a physical change.