Weather and the Atmosphere
This is the amount of energy that reaches the Earth at a given time and place.
What is insolation?
This is the element whose symbol is Au.
What is gold
This is anything that has mass and volume.
What is matter?
This states that during a chemical change, mass is neither destroyed nor created, and rather it is converted.
What is the law of conservation of mass?
Why does hail form in tall clouds?
Hail starts out as raindrops. These raindrops get pushed high into the atmosphere by wind. When this happens, the raindrops freeze and turn into ice. This process repeats over and over gain, and the ice builds up in layers, until the ice gets so large, it falls to the ground. The clouds need to be tall so the raindrops can go high enough into the atmosphere.
This is the layer of the atmosphere where meteors often burn up unless they are too large.
What is the Mesosphere?
This is the group of metals located to the far-left of the periodic table, and are highly reactive.
What are the alkali metals?
These properties can be measured/observed without changing the identity of a substance, Density, volume, shape, weight, hardness, odor, and conductivity are examples of these.
What are physical properties?
These are the elements or compounds that appear to the left of the equal sign/arrow in a chemical equation.
What are the reactants?
Which particles in an atom can increase or decrease in number without changing the identity of an element?
Neutrons and electrons can be changed in number without changing the identity of an element. This is because the identity of an element is only determined by the number of protons.
This instrument is used to measure wind speed.
What is an anemometer?
This is a large group of metals located in the center of the periodic table that react slowly with other elements. Some examples of these include copper, iron, gold, and zinc.
This is the particle of an atom that is located in the nucleus and has a positive charge.
This type of reaction occurs when two or more elements or compounds chemically combine to form a new, more complex substance.
What is a synthesis reaction?
Why are alkali metals considered to be dangerous?
Alkali metals are considered to be dangerous because they are highly reactive in room temperature and is also why they rarely occur by themselves in nature.
These are the four main kinds of precipitation.
What is rain, snow, sleet, and hail?
These are nonmetals located to the left of the noble gasses on the periodic table, and are highly reactive. Some examples of these include fluorine and chlorine.
What are the halogens?
This describes the ability of an object to float in a fluid.
What is buoyancy?
This type of reaction releases energy such as light and heat.
What is an exothermic reaction?
When you tarnish silver (Ag), silver sulfide (Ag2S) is formed. What kind of chemical reaction is this? Why?
This is a synthesis reaction because the silver combines with sulfur to form a new compound called silver sulfide. This is like when iron rusts, except it is silver, and instead of oxygen it is sulfur.
This is the outermost layer of the atmosphere, and is where the air is very thin.
What is the exosphere?
These are nonmetal that don't react naturally with other elements. Some examples of these include Helium, Argon, Neon, and Xenon.
What are noble gasses?
This is the method of finding the volume of an irregular solid submerged in a liquid and measuring the liquid that is moved out of the way or displaced.
What is water displacement?
This is a chemical reaction wherein a more complex substances breaks down into simpler ones.
What is a decomposition reaction?
A sugar solution appears to be saturated. How could you increase its solubility?
Stirring the solution will break up the solute into smaller pieces and increase the solution's solubility. Heating the solution will also allow more solute to dissolve and speed up the process of dissolving.