states and motion
This state of matter has a fixed volume but takes the shape of its container.
What is a liquid?
This physical property is calculated using the formula Mass ÷ Volume.
What is density?
The small, positively charged particle located in the nucleus of an atom.
What is a proton?
The starting substances located on the left side of a chemical equation.
What are reactants?
The measure of the average kinetic energy of the particles in an object.
What is temperature?
As the temperature of a gas increases inside a closed container, this measurement of particle collisions against the walls also increases.
What is pressure?
If an object has a mass of 20 grams and a volume of 5 cm³, its density is this value.
What is 4 g/cm³?
A pure substance made of two or more different elements chemically bonded together.
What is a compound?
This law states that matter cannot be created or destroyed during a chemical reaction.
What is the Law of Conservation of Mass?
The total kinetic energy of all the particles moving in a sample of matter.
What is thermal energy?
The process where a solid changes directly into a gas without turning into a liquid first.
What is sublimation?
A trait that can only be observed when a substance undergoes a chemical change, such as flammability or reactivity.
What is a chemical property?
The center of an atom containing protons and neutrons, which holds nearly all of the atom's mass.
What is the nucleus?
A type of chemical reaction that absorbs thermal energy from its surroundings, causing the surrounding temperature to drop.
What is an endothermic reaction?
Thermal energy always transfers naturally from an object of this temperature level to an object of a lower level.
What is higher temperature (or warmer/hotter)?
According to kinetic molecular theory, particles in this state of matter have the lowest kinetic energy and only vibrate in fixed positions.
What is a solid?
Shape, volume and color(sometimes) are types of these properties?
What are physical properties?
Negatively charged subatomic particles that orbit the nucleus in an atom's outer shells.
What are electrons?
Bubbling, production of gas, color change, and temperature shift are all indicators that this type of change has occurred.
What is a chemical change (or chemical reaction)?
The transfer of thermal energy through direct touch or contact between particles.
What is conduction?
This phase change occurs when gas particles lose thermal energy and turn back into a liquid.
What is condensation?
When you pour water and oil in a container, the oil floats on top because of this.
What is a greater density?
A group of two or more atoms held together by chemical bonds; it can be made of the same element or different elements.
What is a molecule?
The new substances formed on the right side of a chemical equation.
What are products?
The heat transfer process in liquids and gases where warm, less dense material rises and cool, denser material sinks.
What is convection?