Properties & States of Matter
Two types of mixtures and the difference between them.
What are homogeneous (the same throughout) and heterogenous (see different parts)?
One sign that indicates a chemical reaction has occurred.
What is color change OR gas is produced OR heat or light is released?
Define Density.
What is the degree of compactness of a substance? (OR the amount of “stuff” in a certain space)
Define energy in scientific context.
What is the ability to do work or cause change?
Define precipitation and name the instrument used to measure it.
What is the water that condenses from water vapor in the atmosphere (Falls as rain, sleet, snow, or hail) and a Rain gauge?
Name this compound: N₂O.
What is Dinitrogen monoxide?
The definition of molecules.
What is two or more atoms bonded together? (They can be the same type of atom or different)
Thermal energy always moves from objects with _______ temperatures to objects with ________ temperatures.
What is higher and lower?
Define kinetic energy and give an example of you using it today.
What is the energy of motion (ex: a moving car)?
The weather that a cold front brings.
What are clouds, rain, snow, and thunderstorms?
What are Solutes (The substance that gets dissolved) and Solvents (The substance doing the dissolving)?
How you identify the reactants and products in a reaction.
What are reactants, the substances you start with (on the left of the arrow); product,s what you end up with (on the right)?
Which has more thermal energy? A cup of hot tea or an iceberg? Why?
The iceberg – because it’s much bigger and has more total particles, even if it’s colder.
Give an example of how two objects not in contact can exert force on each other.
What is a magnet pulling a paperclip from a distance?
The weather front that brings cool, clear weather after it passes.
What is an occluded front?
The words you use to describe the physical properties of matter. (you need to get 5 of 8)
What are State at room temperature, Color, Shape, Lustrous, Transparent, Translucent, Opaque, Metallic or non-metallic?
These increase the rate of a chemical reaction. (must provide 2)
What are Heat, stirring, increasing concentration, using a catalyst?
Explain the difference between an endothermic and exothermic reaction.
What is Endothermic absorbs heat (feels cold) and Exothermic releases heat (feels hot)?
In our rubber band lab, this increased potential energy.
What is pulling the rubber band back further?
The greatest wind speeds occur on a map where...
An oxidation number represents ...
What is the total number of electrons that an atom either gains or loses in order to form a chemical bond with another atom?
How you determine the number of atoms in the products of a chemical equation.
What is counting each atom using the chemical formula and any coefficients on the RIGHT side of the arrow?
Define insulators and conductors. Provide one example of each.
What are Insulators - Slows down heat transfer ex: wool, Styrofoam AND Conductors - Transfers heat well ex: metal, copper?
Give 2 examples of forces that act at a distance.
What are gravity and magnetism?
The type of front where clouds and rain are long and continuos.
What are warm fronts?