Phases of Matter
Particles in this state move the slowest and are known to vibrate.
What is a solid?
The change in state which turns a liquid into a solid.
What is freezing?
What is the periodic Table.
True or False? Chemical Changes are always reversible.
What is False, they cannot be reversed.
This is what we call an educated guess about the outcome of an science experiment.
What is a prediction or hypothesis.
In this phase, substances have no fixed shape and no fixed volume.
What is a Gas?
The process (what do you do to make it do this) in which a liquid turns into a gas.
What is boiling?
Two or more atoms connected by chemical bonds.
What is a molecule.
When a substance undergoes a change down to its atoms, this is happening.
What is chemical change?
What substance is formed when metal reacts with oxygen and water?
What is rust?
This is a state or phase of matter in which a substance has a definite volume but no definite shape.
What is a liquid.
To change from a liquid to a gas at or below the boiling point.
What is evaporation.
An atom that exists naturally in Earth that serves as a building block of all matter. We find these on the periodic table.
What is an Element.
A substance that can be measured or observed or changed without changing the type of matter, this has happened.
What is a physical change?
What chemical property is the measure of how acidic water is?
What is pH (potential of hydrogen)?
The process when a gas becomes a liquid. (hint: drops form on the outside of a cold glass)
What is condensation?
This is the primary source of energy on Earth.
What is the Sun?
The smallest unit of matter that cannot be broken down any further.
What is an atom.
The process of changing from liquid to gas represents what type of change?
What is a physical change?
This substance is known as the universal solvent, meaning that it can dissolve many other substances, more than any other liquid substance.
What is H2O (water)?
Any change from one state of matter to another requires the addition or removal of this.
What is thermal, or heat, energy?
Transfer of thermal energy by electromagnetic waves. (Hint: your microwave can do it; Sitting in the sun you feel it too)
What is Radiation/Light?
Matter that can be broken down by an chemical reaction into its multiple different element parts.
What is a compound.
How can energy be released during a chemical change? (hint: two different words)
What are Exothermic and Endothermic Reactions
It can be released in the form of heat or light.
What is the same for both compounds - C6H12O6 and CH3OH?
What is the type of atoms/elements?