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7th grade science

What is a substance? It is matter that has a fixed composition.
What is an element? An example of pure substance.
What can change a substance into one or more different substance? A chemical process such as burning or reacting with other chemicals.
What is a mixture? A combination of substances that aren't bounded together and can be seperated by physical process.
What is a solution? Two or more substances evenly mixed on a molucular level but not bonded together. (AKA homogenous).
What is a Solute? The substance that disssolves in a solution.
What is the solvent? The substance that dissolves the solute.
What is percipitate? A solution that falls out of solutions.
Solutions can be made of different ____________ of solid liquids and gases. Combinations = ____________
In a ______ solution the solute can be another liquid solid or gas. Liquid = _______
Salt water and suger water are ____________ solutions. Liquid-solid = ____________
Carbinated beverages are __________ solutions. Liquid-gas = ___________
Viniger is a _____________ solution made of water and acetic acid. Liquid-liquid = _____________
What is Alloy? A solid-solid solution made from two or more metals, (sometimes nonmetal elements are included in an alloy.)
What is brass? An alloy of copper and zinc.
What is steel? An alloy of iron and carbon, which makes the steel stronger and more flexible.
Created by: Muhaimen



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