Mixtures and Solutions
The term used for a combination of two or more substances that keep their identities
Mixture
This tool has holes that matter can pass through. Matter that is smaller than the holes pass through, while larger pieces stay above the holes.
Sieve or Mesh Screen
The term for the smallest unit of an element that maintains the properties of that element
Atom
The ability to cause changes in matter
Energy
A form of energy that is carried as waves in a vibrating matter. It is the cause of all the sounds you hear
Sound Energy
A mixture that has the same composition throughout
Solution
This tool attracts matter that contains iron, separating it from the other parts of the mixture
Magnet
A positively charged particle found in the nucleus of an atom
Proton
The energy an object has because of its position or condition is called _________.
Potential Energy
The total kinetic energy of the particles that make up a substance. It helps you to stay warm, to cook food, and to heat water.
Thermal Energy or Heat Energy
When something ________, it breaks up into particles so tiny they can't be seen even with a microscope
Dissolves
This tool has tiny openings, or pores. Only the smallest bits of matter, like water particles and dissolved particles of salt, can pass through the pores
Filter
Particles in the nucleus that have no charge
Neutrons
The energy an object has because of its motion is called _________
Kinetic Energy
A form of energy that can travel through space, air, and glass
Light Energy
Objects will float in water if they are....
Less Dense than Water
To make an _______, metals and other elements are melted together and then allowed to harden
Alloy
Negatively charged particles that speed through an area around the nucleus called the electron cloud
Electrons
Where is the greatest amount of potential energy on a roller coaster?
At the highest point
Energy caused by the movement of electric charges.
Electrical Energy
Name one physical property that can be used to separate mixtures
Color, Size, Melting Point, Boiling Point, Density, and the Ability to Dissolve
The term for when a liquid rapidly changes into a gas
Boiling
The type of matter made of just one kind of atom
Element
The Sum of all kinetic and potential energy an object has is called __________
Mechanical Energy
Energy that is stored in matter and that can be released by a chemical reaction
Chemical Energy