Physical and Chemical Changes

What state of matter is smoke?

• Solid

• Liquid

• Gas

• Plasma

What is an example of a physical change?

• Cutting an orange is an example of a physical change.

• Burning wood is an example of a physical change.

• Mixing vinegar and baking soda is an example of a physical change.

• Melting ice is an example of a physical change.

What is an example of a chemical change?

• Burning wood is an example of a chemical change.

• Melting ice is an example of a chemical change.

• Boiling water is an example of a chemical change.

• Dissolving sugar in water is an example of a chemical change.

Is melting ice a physical or chemical change?

• A) Physical change

• B) Chemical change

• C) Both physical and chemical change

• D) Neither physical nor chemical change

What is the definition of a solid?

• A solid is a state of matter characterized by a definite shape and volume, with closely packed particles.

• A solid is a state of matter that has no definite shape but has a definite volume.

• A solid is a state of matter that can flow and take the shape of its container.

• A solid is a state of matter that is always in motion and has no fixed volume.

Is rusting of iron a physical or chemical change?

• Physical change

• Chemical change

• Both physical and chemical change

• Neither physical nor chemical change

What are the three states of matter?

• Solid, liquid, and gas

• Solid, liquid, and plasma

• Solid, gas, and vapor

• Liquid, gas, and steam

What is a chemical change?

• A change that results in the formation of new chemical substances, involving a rearrangement of atoms.

• A physical change that does not alter the chemical composition of a substance.

• A process that only involves the mixing of different substances without any reaction.

• A change that occurs when a substance is heated or cooled without any chemical reaction.

What is the state of matter of wood?

• Liquid

• Gas

• Solid

• Plasma

What is a physical change?

• A change that alters the chemical composition of a substance.

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

• A change that occurs only at high temperatures.

• A change that can be reversed without any external influence.