5th grade - Physical Science - Lessons 15 -19 - Review

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.

Front

What is a physical change?

Back

A physical change is a change that affects one or more physical properties of a substance without altering its chemical composition.

Front

Give an example of a chemical change.

Back

Baking a cake is an example of a chemical change because new substances are formed during the process.

Front

What happens during a chemical reaction?

Back

During a chemical reaction, reactants are transformed into products, resulting in the formation of new substances.

Front

What is solubility?

Back

Solubility is the ability of a substance to dissolve in a solvent, such as water.

Front

Is sugar soluble in water?

Back

Yes, sugar is soluble in water.

Front

Is sand soluble in water?

Back

No, sand is not soluble in water.

Front

What is an example of a physical change?

Back

Melting ice is an example of a physical change because it changes state from solid to liquid without forming a new substance.

Front

What occurs when a metal can rusts?

Back

When a metal can rusts, a chemical change occurs, resulting in the formation of rust, a new substance.

Front

What is the conservation of matter?

Back

The conservation of matter states that matter cannot be created or destroyed in a chemical reaction; it can only change forms.