This type of weather system brings dry, clear skies
What is high pressure?
These are the building blocks of molecules, which make up everything
What are atoms?
This is the first step in the scientific method, often phrased as a measurable question
What is the problem?
The chemical formula for water is this.
What is Hâ‚‚O?
This is the land area that supplies water to a river system, also called a drainage basi
What is a watershed?
This symbol on a weather map represents a boundary between air masses where colder air is advancing.
What is a cold front?
In an atom, these positively charged particles are found in the nucleus
What are protons?
This step involves an educated guess or testable statement, often written in an "If...then..."
What is the hypothesis?
Water is this type of molecule because it has electrically charged areas.
What is a polar molecule?
This is a stream or river that flows into a larger river.
What is a tributary?
Thunderstorms are often produced ahead of this type of weather boundary
What is a cold front?
This ancient language is the origin of the word 'A'tomos', meaning "something that cannot be divided any further
What is Greek?
The student planted the same type of plants and watered the plants the same each day. This is an example of what.
What is the constant?
This property describes the tightness across the surface of water caused by polar molecules pulling on one another, making the surface curved.
What is surface tension?
These strips of plants can help filter out pollution before it reaches the water.
What are riparian zones?
This type of air mass occurs when cold air sinks, which is associated with high pressure
What is a high pressure air mass?
The number of these negatively particles in an atom determines the element's chemical properties, such as melting point
What are electrons?
When completing the experiment, all the fish received the same amount of food. However, the amount of light received each day varied. The light is what variable.
What is the independent variable?
This property describes the combined force of attraction among water molecules and with the molecules of surrounding materials, causing water to rise in a straw
What is capillary action?
This is where fresh water mixes with salty ocean water, containing brackish water.
What is an estuary?
Meteorologists use the fact that weather generally moves in this direction across the United States for forecasting
What is west to east?
This scientist proposed the model for the hydrogen atom and we use his theory today to model atoms.
Who is Bohr?
When creating a graph of the experiment, this variable goes on the Y axis.
What is the dependent variable?
Water is called this because it is able to dissolve many substances due to its polar nature
What is universal solvent?
This is the amount of salt dissolved in water.
What is salinity?