Lesson 1 | Lesson 2 | Lesson 3 | |
---|---|---|---|
Anything that has mass and takes up space
What is matter?
|
A characteristic of matter that you can observe or measure without changing the identity of the matter
What is a physical property?
|
A change in size, shape, form, or state of matter in which the matter's identity stays the same
What is a physical change?
|
A characteristic of matter that can be observed as it changes to a different type of matter
What is a chemical property?
|
A small particle that is a building block of matter
What is an atom?
|
The amount of matter in an object
What is mass?
|
The particles in the solid move faster and faster, and the temperature increases
What happens when thermal energy is added to a solid?
|
A change in matter in which the substances that make up the matter change into other substances with new physical and chemical properties
What is chemical change?
|
Matter with a composition that is always the same
What is a substance?
|
The mass per unit volume of a substance
What is density?
|
Particles in the gas move more slowly and the temperature decreases
What happens when thermal energy is removed from a gas?
|
Signs of chemical changes include the formation of bubbles or a change in energy, odor, or color
How do you know when a chemical change occurs?
|
A substance that consists of just one type of atom
What is an element?
|
The ability of one substance to dissolve in another
What is solubility?
|
The physical properties of matter change
What happens during a physical change?
|
Write a chemical equation
What is useful way to understand what happens during a chemical reaction?
|
A type of substance containing atoms of two or more different elements chemically bonded together
What is a compound?
|
Another property that is independent of the sample size
What is conductivity?
|
When the particles are moving slowly enough for attractive forces to pull the particles close together
When does condensation occur?
|
Change the chemical formula of any reactants or products
When balancing an equation, you cannot do what?
|