Physical Changes
A physical change does NOT form a new ________.
Substance
A chemical change forms a new ________.
What is a substance?
A mixture is made of substances that are ________ combined.
What is physically?
A solution is a mixture where substances are ________ mixed.
What is evenly?
Salt dissolving in water is what type of change?
What is a physical change?
Ice melting, paper tearing, and chocolate melting are all examples of ________ changes.
What are physical changes?
Bubbles forming during a reaction is a sign of a ________.
What is a chemical change?
In a mixture, each substance keeps its ________.
What is its identity?
In a solution, the substance that gets dissolved is called the ________.
What is the solute?
Stirring helps a solute dissolve faster because it spreads the ________.
What are the particles?
Changing from one state of matter to another is what kind of change?
What is a physical change?
Wood burning and metal rusting are examples of what kind of change?
What is a chemical change?
Vegetable soup, beach sand, and granite are examples of mixtures that are ________ mixed.
What is not evenly?
Water is called the “universal ________.”
What is solvent?
Mixtures can be separated using their ________ properties.
What are physical properties?
Physical changes can usually be ________.
What is reversed?
A new smell or color change can be signs of what type of change?
What is a chemical change?
The best way to separate salt and sand is to ________.
What is add water to dissolve the salt and pour off the salt water?
A solution with a lot of solute is called ________.
What is concentrated?
Air is a solution of ________.
What are gases?
Water boiling from liquid to gas is what state change?
What is vaporization or evaporation?
Chemical changes cannot be ________ easily.
What is reversed?
Liquids with different densities form ________.
What are layers?
Solutes dissolve faster in hot water because heat increases ________.
What is solubility?
A solute dissolving in a solvent is what process?
What is diffusion?