Quiz #3 Study Guide 2016 Weather & Climate - 6th Grade Science – Miss Fox *Refer to SEPUP Book (online) and your Science Journal - review lab activates and for weather & climate. Scientific Method: is a series of steps used to investigate a problem Purpose: is the reason for the experiment Hypothesis: is an educated guess Materials: is the list of supplies needed for the experiment Experiment/procedures: are the step by step instructions to conduct the investigation Variable: any factor that can be changed in an experiment Independent variable: is typically the variable representing the value being manipulated or changed. Dependent variable: is the observed result of the independent variable being manipulated. Constant: factors that will need to be kept constant/the same in an experiment. Control: Control is the portion that you are not performing experiments on and is used for comparison. Analysis: is the organization of the collected data into graphs and explanations Conclusion: at the end of a scientific investigation a conclusion interprets the results. It is the claim, evidence and reasoning summary of what resulted. Was your Hypothesis correct? Weather - The condition of the atmosphere, including temperature, precipitation, and cloud cover, at a particular time and place. Climate - The average weather for a place over a long period of time (usually at least 30 years). Hydrosphere - is the total amount of water on a planet. The hydrosphere includes water that is on the surface of the planet, underground, and in the air. A planet's hydrosphere can be liquid, vapor, or ice. On Earth, liquid water exists on the surface in the form of oceans, lakes and rivers. Ocean current - Regular movements of large amounts of water in the ocean. Salinity - A measure of the amount of salt dissolved in water. Solvent - A substance that dissolves other substances. Water is an excellent solvent and is known as the universal solvent, because it is capable of dissolving a variety of different substances. The Sun is the main source of Earths heat. Cloud - A visible collection of water droplets in the atmosphere. Clouds usually form hundreds of meters above Earth’s surface but fog is a cloud formed near Earth’s surface. Precipitation - The movement of water, in solid or liquid form, from the atmosphere back to the surface of the earth. Rain, snow, sleet, and hail are examples. Water cycle - The movement of water from one state to another as it circulates through the earth’s crust, oceans, and atmosphere. Water evaporates from the surface, rises and cools at higher elevations, condenses as rain or snow, and falls to the surface where it collects in lakes, oceans, soil, and rocks underground. How water changes form/state: Evaporation - The process of change in state from a liquid to a gas. Melting - To change from a solid to liquid state. Freezing - To change from a liquid to a solid state. Condensation - The process of change in state from gas to liquid, or the droplets of liquid formed from this process.