Particle Theory
This thing is anything that has a mass and volume (takes up space).
What is matter?
This substance has different particles.
what is a mixture?
This substance has identical particles.
What is a Pure Substance?
What happens to particles when they are heated?
They move faster.
Rubbing your hands together produces heat through this.
What is friction?
This theory explains that all matter is made of tiny particles
What is the Particle Theory of Matter?
This is also known as a mechanical mixture.
What is a heterogenous mixture?
There is another term for homogenous mixtures.
What is a solution?
Explain convection currents using particle theory
Warm particles move faster, spread out, and rise; cooler particles, close the space, and sink.
This form of energy can be converted into heat (e.g., toaster).
What is electrical energy?
These things are always in constant motion.
What are particles?
This makes up the largest part of of a solution.
What is a solvent?
This dissolves into a solvent and makes up a smaller portion of a solution.
What is a solute?
Cool fluids move in this direction.
What is down?
Warm fluids move in this direction.
What is up?
Particles move faster when this increases
What is temperature?
This solution contains less amount of solute that can be dissolved.
What is unsaturated solution?
This type of pure substance is made of two or more different atoms chemically bonded.
What is a compound?
Which material is a better conductor: metal or wood?
What is metal?
What generally happens to matter when it is heated?
What is expands.
Particles in solids are arranged like this.
What is tightly packed and vibrating in place?
Water is called this because it dissolves many substances.
What is the universal solvent?
This word describes how evenly particles are spread in a homogeneous mixture.
What is uniform?
Heat transfer through direct contact is called this.
What is conduction?
Why do railway tracks have small gaps between them?
What is to allow for expansion when heated?